varistor
      varistor
      varistor varistor varistor varistor varistor

      what is varistor: Varistor is nonlinear resistor mainly composed of zinc oxide as the main material of metal oxide semiconductor components,and they can be divided into symmetric (non-polarity) and ……

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  • Functional characteristics
  • what is varistor:
    Varistor is nonlinear resistor mainly composed of zinc oxide as the main material of metal oxide semiconductor components,and they can be divided into symmetric (non-polarity) and asymmetric (with polarity) according to the voltage-ampere characteristic.The nonlinear resistors are more sensitive to voltage, when voltage reached one set value, resistance conducts rapidly.Due to characteristics of high effective nonlinear coefficient,large through-flow capacity,fast action and no continued flow,they are mainly used for lightning surge protection and surge protector of electronic equipments,which could absorb various operating surge & lightning wave voltage that can prevent such voltage interfering with the normal operation or damaging the various circuit elements.
    application of varistor:
    Widely applied in surge protection of different Electronic Engineering areas:
    1.Surge protection for Telecommunications,
    2.Surge protection for Electricity,
    3.Surge protection for Home appliances,
    Example: telephones,converter,power meter, power distribution cabinets, socket box, distribution box, power switch, power lightning protection box,voltage regulator, lightning arrester (SPD surge protection special).
    metal oxide varistor working principle:
    When varistor in a rest state, relative to the protected electronic components, has a very high impedance (number megohm) without changing circuit characteristics of the original design.When achieve the momentary surge voltage (more than breakdown voltage of the varistor), the varistor impedance will be low (only a few ohms.) and caused the original short circuit.In other words, electronic products or components are thus protected.
    advantages of  Varistor:
    1.Wide voltage range,
    2.Large capacitance and energy tolerance,
    3.High effective nonlinear coefficient,
    4.Little leakage current,
    5.Symmetrical volt-ampere characteristic,
    6.Low residual voltage,
    7.Fast action,
    8.No continued flow,
    9.Excellent voltage ratio,
    10.Strong surge protection ability,
    11.High surge suppression capability,
    12.Stable voltage Inhibition execution ability,
    13.Excellent material,
    14.Reliable operation,
    15.Long service life,
    16.Wide application.
    varistor marking code:
    metal oxide varistor marking code
    Specification&part no. of Varistor:varistor 05Dmetal oxide varistor 05D series
    Specifications
    1. Varistor voltage: 18~750V
    2. Max. allowable voltage: 11~460V(AC) 14~615V(DC)
    3. Capacitance(reference)@1KHz:30-1400pf
    Specification&Part no.
    N(Standard) Series
    Diameter:5mm

    Item Part No. Max Allowable Voltage Max Clamping Voltage Varistor Voltage Energe 10/1000µS Withstanding Surge Current 8/20µS Rated Power
    ACrms(V) DC(V) at 5A at 0.1mA (J) 1 time 2 times (W)
    (V) (V) (A)
    1 05D751K 460 615 1240 750(675-825) 22.4 400.0 200.0 0.10
    2 05D681K 420 560 1120 680(612-748) 21.0
    3 05D621K 385 505 1025 620(558-682) 21.0
    4 05D561K 350 460 920 560(504-616) 19.6
    5 05D511K 320 415 845 510(459-561) 19.6
    6 05D471K 300 385 775 470(423-517) 18.2
    7 05D431K 275 350 710 430(387-473) 16.8
    8 05D391K 250 320 650 390(351-429) 15.4
    9 05D361K 230 300 595 360(324-396) 14.0
    10 05D331K 210 275 550 330(297-363) 14.0
    11 05D301K 190 250 505 300(270-330) 11.8
    12 05D271K 175 225 455 270(243-297) 10.5
    13 05D251K 160 205 415 250(225-275) 10.0
    14 05D241K 150 200 395 240(216-264) 9.8
    15 05D221K 140 180 360 220(198-242) 8.8
    16 05D201K 130 170 330 200(185-225) 7.7
    17 05D181K 115 150 300 180(162-198) 5.6
    18 05D151K 95 125 250 150(135-165) 4.2
    19 05D121K 75 100 200 120(108-132) 4.2
    20 05D101K 60 85 165 100(90-110) 2.8
    21 05D820K 50.0 65.0 135 82(74-90) 2.8
    22 05D680K 40 56 135 68(61-75) 1.8 100.0 50.0 0.01
    23 05D560K 35 45 110 56(50-62) 1.5
    24 05D470K 30 38 93 47(42-52) 1.4
    25 05D390K 25 31 77 39(35-43) 1.1
    26 05D330K 20 26 65 33(30-36) 0.8
    27 05D270K 17 22 53 27(24-30) 0.7
    28 05D220K 14 18 43 22(20-24) 0.6
    29 05D180L 10 14 38 18(15-21) 0.4

    J(High Surge&High Energy) Series
    Diameter:5mm

    Item Part No. Max Allowable Voltage Max Clamping Voltage Varistor Voltage Energe 10/1000µS Withstanding Surge Current 8/20µS Rated Power
    ACrms(V) DC(V) at 5A at 0.1mA (J) 1 time 2 times (W)
    (V) (V) (A)
    1 05D751K 460 615 1240 750(675-825) 32.0 800.0 600.0 0.10
    2 05D681K 420 560 1120 680(612-748) 29.0
    3 05D621K 385 505 1025 620(558-682) 25.0
    4 05D561K 350 460 920 560(504-616) 23.0
    5 05D511K 320 415 845 510(459-561) 21.0
    6 05D471K 300 385 775 470(423-517) 21.0
    7 05D431K 275 350 710 430(387-473) 20.0
    8 05D391K 250 320 650 390(351-429) 17.0
    9 05D361K 230 300 595 360(324-396) 16.0
    10 05D331K 210 275 550 330(297-363) 14.5
    11 05D301K 190 250 505 300(270-330) 14.0
    12 05D271K 175 225 455 270(243-297) 13.0
    13 05D241K 150 200 395 240(216-264) 11.0
    14 05D221K 140 180 360 220(198-242) 9.0
    15 05D201K 130 170 330 200(185-225) 9.0
    16 05D181K 115 150 300 180(162-198) 8.0
    17 05D151K 95 125 250 150(135-165) 7.0
    18 05D121K 75 100 200 120(108-132) 5.0
    19 05D101K 60 85 165 100(90-110) 4.0
    20 05D820K 50.0 65.0 135 82(74-90) 4.0
    21 05D680K 40 56 135 68(61-75) 2.2 250.0 125.0 0.01
    22 05D560K 35 45 110 56(50-62) 1.8
    23 05D470K 30 38 93 47(42-52) 1.5
    24 05D390K 25 31 77 39(35-43) 1.2
    25 05D330K 20 26 65 33(30-36) 1.1
    26 05D270K 17 22 53 27(24-30) 0.9
    27 05D220K 14 18 43 22(20-24) 0.7
    28 05D180L 10 14 38 18(15-21) 0.6

    metal oxide varistor 07D seriesmetal oxide varistor 07D
    Specifications
    1. Varistor voltage: 18~820V
    2. Max. allowable voltage: 10~510V(AC) 14~670V(DC)
    3. Capacitance(reference)@1KHz:45-2800pf
    Specification&Part no.
    N(Standard) Series
    Diameter:7mm

    Item Part No. Max Allowable Voltage Max Clamping Voltage Varistor Voltage Maximum Energe 10/1000µS Withstanding Surge Current 8/20µS Rated Power
    ACrms
    (V)
    DC(V) at 10A at 1mA Standard Standard (W)
    (V) (V) (J)  I(A)
    1 07D821K 510 670 1355 820(738-902) 69.2 1200 0.25
    2 07D781K 485 640 1290 780(702-858) 67.0
    3 07D751K 460 615 1240 750(675-825) 65.0
    4 07D681K 420 560 1120 680(612-748) 40.6
    5 07D621K 385 505 1025 620(558-682) 39.6
    6 07D561K 350 460 920 560(504-616) 38.0
    7 07D511K 320 415 845 510(459-561) 37.0
    8 07D471K 300 385 775 470(423-517) 36.0
    9 07D431K 275 350 710 430(387-473) 33.4
    10 07D391K 250 320 650 390(351-429) 32.0
    11 07D361K 230 300 595 360(324-396) 32.0
    12 07D331K 210 275 550 330(297-363) 31.0
    13 07D301K 190 250 505 300(270-330) 30.0
    14 07D271K 175 225 455 270(243-297) 26.2
    15 07D251K 160 205 415 250(225-275) 24.0
    16 07D241K 150 200 395 240(216-264) 22.0
    17 07D221K 140 180 360 220(198-242) 22.0
    18 07D201K 130 170 330 200(185-225) 20.2
    19 07D181K 115 150 300 180(162-198) 13.2
    20 07D151K 95 125 250 150(135-165) 13.5
    21 07D121K 75.0 100.0 200 120(108-132) 8.8
    22 07D101K 60 85 165 100(90-110) 7.5
    23 07D820K 50 65 135 82(74-90) 6.5
    24 07D680K 40 56 135 68(61-75) 3.9 250 0.02
    25 07D560K 35 45 110 56(50-62) 3.3
    26 07D470K 30 38 93 47(42-52) 3.0
    27 07D390K 25 31 77 39(35-43) 2.3
    28 07D330K 20 26 65 33(30-36) 2.0
    29 07D270K 17 22 53 27(24-30) 1.8
    30 07D220K 14 18 43 22(20-24) 1.3
    31 07D180L 10 14 38 18(15-21) 1.0

    J(High Surge&High Energy) Series
    Element Diameter: 07mm

    Item Part No. Max Allowable Voltage Max Clamping Voltage Varistor Voltage Energe 10/1000µS Withstanding Surge Current 8/20µS Rated Power
    ACrms(V) DC(V) at 10A at 1mA (J) 1 time 2 times (W)
    (V) (V) (A)
    1 07D821K 510 670 1355 820(738-902) 104 1800 864 0.25
    2 07D751K 460 615 1240 750(675-825) 97
    3 07D681K 420 560 1120 680(612-748) 90
    4 07D621K 385 505 1025 620(558-682) 89
    5 07D621K 350 460 920 560(504-616) 84
    6 07D511K 320 415 845 510(459-561) 82
    7 07D471K 300 385 775 470(423-517) 81
    8 07D431K 275 350 710 430(387-473) 73
    9 07D391K 250 320 650 390(351-429) 67
    10 07D361K 230 300 595 360(324-396) 60
    11 07D331K 210 275 550 330(297-363) 54
    12 07D301K 190 250 505 300(270-330) 50
    13 07D271K 175 225 455 270(243-297) 46
    14 07D241K 150 200 395 240(216-264) 40
    15 07D221K 140 180 360 220(198-242) 40
    16 07D201K 130 170 330 200(185-225) 36
    17 07D181K 115 150 300 180(162-198) 26
    18 07D151K 95 125 250 150(135-165) 24
    19 07D121K 75.0 100.0 200 120(108-132) 20
    20 07D101K 60 85 165 100(90-110) 17
    21 07D820K 50 65 135 82(74-90) 14
    22 07D680K 40 56 135 68(61-75) 11 375 180 0.02
    23 07D560K 35 45 110 56(50-62) 9
    24 07D470K 30 38 93 47(42-52) 7
    25 07D390K 25 31 77 39(35-43) 6
    26 07D330K 20 26 65 33(30-36) 5
    27 07D270K 17 22 53 27(24-30) 4
    28 07D220K 14 18 43 22(20-24) 3
    29 07D180L 10 14 38 18(15-21) 3

    metal oxide varistor 10D seriesmetal oxide varistor 10D
    N(Standard) Series
    Varistor Element Diameter:10mm
    J(High Surge&High Energy) Series
    Varistor Element Diameter:10mm
    Specifications
    1. Varistor voltage: 18~1100V
    2. Max. allowable voltage: 10~680V(AC) 14~895V(DC)
    3. Capacitance(reference)@1KHz:45-2800pf
    Specification&Part no.
    N(Standard) Series
    Diameter:10mm

    Item Part No. Max Continuous Operating Voltage Max Clamping Voltage Varistor Voltage Energe 10/1000µS Withstanding Surge Current 8/20µS Rated Power
    ACrms(V) DC(V) at 25A at 1mA (J) 1 time 2 times (W)
    (V) (V) (A)
    1 10D112K 660 895 1815 1100(990-1210) 133.0 2500 1250 0.40
    2 10D102K 625 825 1650 1000(900-1100) 133.0
    3 10D911K 550 745 1500 910(819-1001) 133.0
    4 10D821K 510 670 1355 820(738-902) 125.0
    5 10D781K 485 640 1290 780(702-858) 125.0
    6 10D751K 460 615 1240 750(675-825) 125.0
    7 10D681K 420 560 1120 680(612-748) 102.0
    8 10D621K 385 505 1025 620(558-682) 102.0
    9 10D561K 350 460 920 560(504-616) 100.0
    10 10D511K 320 415 845 510(459-561) 100.0
    11 10D471K 300 385 775 470(423-517) 100.0
    12 10D431K 275 350 710 430(387-473) 88.2
    13 10D391K 250 320 650 390(351-429) 81.2
    14 10D361K 230 300 595 360(324-396) 74.2
    15 10D331K 210 275 550 330(297-363) 68.6
    16 10D301K 190 250 505 300(270-330) 63.0
    17 10D271K 175 225 455 270(243-297) 57.4
    18 10D251K 160 205 415 250(225-275) 52.0
    19 10D241K 150 200 395 240(216-264) 50.4
    20 10D221K 140 180 360 220(198-242) 46.2
    21 10D201K 130 170 330 200(185-225) 42.0
    22 10D181K 115 150 300 180(162-198) 30.8
    23 10D151K 95 125 250 150(135-165) 25.2
    24 10D121K 75 100 200 120(108-132) 21.0
    25 10D101K 60 85 165 100(90-110) 18.2
    26 10D820K 50 65 135 82(74-90) 16.8
    27 10D680K 40 56 135 68(61-75) 15.4 500 250 0.05
    28 10D560K 35 45 110 65(50-62) 12.9
    29 10D470K 30 38 93 47(42-52) 10.8
    30 10D390K 25 31 77 39(35-43) 9.1
    31 10D330K 20 26 65 33(30-36) 7.4
    32 10D270K 17 22 53 27(24-30) 6.0
    33 10D220K 14 18 43 22(20-24) 4.5
    34 10D180L 10 14 38 18(15-21) 2.8

    J(High Surge&High Energy) Series
    Element Disc Diameter:10mm

    Item Part No. Max Allowable Voltage Max Clamping Voltage Varistor Voltage Energe 10/1000µS Withstanding Surge Current 8/20µS Rated Power
    ACrms(V) DC(V) at 25A at 1mA (J) 1 time 2 times (W)
    (V) (V) (A)
    1 10D112K 680 895 1815 1100(990-1210) 155.0 4000 3000 0.40
    2 10D102K 625 825 1650 1000(900-1100) 140.0
    3 10D911K 550 745 1500 910(819-1001) 134.0
    4 10D821K 510 670 1355 820(738-902) 125.0
    5 10D781K 485 640 1290 780(702-858) 125.0
    6 10D751K 460 615 1240 750(675-825) 125.0
    7 10D681K 420 560 1120 680(612-748) 103.0
    8 10D621K 385 505 1025 620(558-682) 103.0
    9 10D561K 350 460 920 560(504-616) 102.0
    10 10D511K 320 415 845 510(459-561) 102.0
    11 10D471K 300 385 775 470(423-517) 100.0
    12 10D431K 275 350 710 430(387-473) 96.0
    13 10D391K 250 320 650 390(351-429) 82.0
    14 10D361K 230 300 595 360(324-396) 75.0
    15 10D331K 210 275 550 330(297-363) 69.0
    16 10D301K 190 250 505 300(270-330) 63.5
    17 10D271K 175 225 455 270(243-297) 58.0
    18 10D241K 150 200 395 240(216-264) 51.0
    19 10D221K 140 180 360 220(198-242) 46.5
    20 10D201K 130 170 330 200(185-225) 42.5
    21 10D181K 115 150 300 180(162-198) 38.0
    22 10D151K 95 125 250 150(135-165) 26.0
    23 10D121K 75 100 200 120(108-132) 21.5
    24 10D101K 60 85 165 100(90-110) 18.5
    25 10D820K 50 65 135 82(74-90) 17.0
    26 10D680K 40 56 135 68(61-75) 16.0 1000 500 0.05
    27 10D560K 35 45 110 65(50-62) 13.0
    28 10D470K 30 38 93 47(42-52) 11.0
    29 10D390K 25 31 77 39(35-43) 9.5
    30 10D330K 20 26 65 33(30-36) 8.0
    31 10D270K 17 22 53 27(24-30) 6.5
    32 10D220K 14 18 43 22(20-24) 5.0
    33 10D180L 10 14 38 18(15-21) 3.0

    metal oxide varistor 14D seriesmov varistor 14D
    N(Standard) Series
    Varistor Element Diameter:14mm
    J(High Surge&High Energy) Series
    Varistor Element Diameter:14mm
    Specifications
    1. Varistor voltage: 18~1800V
    2. Max. allowable voltage: 10~1000V(AC) 14~1465V(DC)
    3. Capacitance(reference)@1KHz:130-11100pf
    Specification&Part no.
    N(Standard) Series
    Element Disc Diameter:14mm

    Item Part No. Max Allowable Voltage Max Clamping Voltage Varistor Voltage Energe 10/1000µS Withstanding Surge Current 8/20µS Rated Power
    ACrms(V) DC(V) at 50A at 1mA (J) 1 time 2 times (W)
    (V) (V) (A)
    1 14D182K 1000 1465 2970 1800(1620-1980) 336.0 4500 2500 0.6
    2 14D152K 900 1200 2475 1500(1350-1650) 266.0
    3 14D112K 680 895 1815 1100(990-1210) 217.0
    4 14D102K 625 825 1650 1000(900-1100) 217.0
    5 14D911K 550 745 1500 910(819-1001) 217.0
    6 14D821K 510 670 1355 820(738-902) 203.0
    7 14D781K 485 640 1290 780(702-858) 203.0
    8 14D751K 460 615 1240 750(675-825) 203.0
    9 14D681K 420 560 1120 680(612-748) 168.0
    10 14D621K 385 505 1025 620(558-682) 168.0
    11 14D561K 350 460 920 560(504-616) 150.0
    12 14D511K 320 415 845 510(459-561) 150.0
    13 14D471K 300 385 775 470(423-517) 150.0
    14 14D431K 275 350 710 430(387-473) 145.0
    15 14D391K 250 320 650 390(351-429) 135.0
    16 14D361K 230 300 595 360(324-396) 123.0
    17 14D331K 210 275 550 330(297-363) 112.0
    18 14D301K 190 250 505 300(270-330) 103.0
    19 14D271K 175 225 455 270(243-297) 94.0
    20 14D251K 160 205 415 250(225-275) 84.0
    21 14D241K 150 200 395 240(216-264) 82.0
    22 14D221K 140 180 360 220(198-242) 79.8
    23 14D201K 130 170 330 200(185-225) 79.8
    24 14D181K 115 150 300 180(162-198) 58.8
    25 14D151K 95 125 250 150(135-165) 51.8
    26 14D121K 75 100 200 120(108-132) 40.6
    27 14D101K 60 85 165 100(90-110) 33.6
    28 14D820K 50 65 135 82(74-90) 29.4
    29 14D680K 40 56 135 68(61-75) 23.8 1000 500 0.1
    30 14D560K 35 45 110 65(50-62) 19.6
    31 14D470K 30 38 93 47(42-52) 16.8
    32 14D390K 25 31 77 39(35-43) 13.2
    33 14D330K 20 26 65 33(30-36) 12.3
    34 14D270K 17 22 53 27(24-30) 9.7
    35 14D220K 14 18 43 22(20-24) 7.6
    36 14D180L 10 14 38 18(15-21) 6.6

    J(High Surge&High Energy) Series
    Element Disc Diameter:14mm

    Item Part No. Max Allowable Voltage Max Clamping Voltage Varistor Voltage Energe 10/1000µS Withstanding Surge Current 8/20µS Rated Power
    ACrms(V) DC(V) at 50A at 1mA (J) 1 time 2 times (W)
    (V) (V) (A)
    1 14D182K 1000 1465 2970 1800(1620-1980) 597.3 8000 6000 0.6
    2 14D152K 900 1200 2475 1500(1350-1650) 472.9
    3 14D112K 680 895 1815 1100(990-1210) 385.8
    4 14D102K 625 825 1650 1000(900-1100) 385.8
    5 14D911K 550 745 1500 910(819-1001) 385.8
    6 14D821K 510 670 1355 820(738-902) 360.9
    7 14D781K 485 640 1290 780(702-858) 360.9
    8 14D751K 460 615 1240 750(675-825) 360.9
    9 14D681K 420 560 1120 680(612-748) 299.0
    10 14D621K 385 505 1025 620(558-682) 298.7
    11 14D561K 350 460 920 560(504-616) 266.7
    12 14D511K 320 415 845 510(459-561) 266.7
    13 14D471K 300 385 775 470(423-517) 266.7
    14 14D431K 275 350 710 430(387-473) 258.0
    15 14D391K 250 320 650 390(351-429) 240.0
    16 14D361K 230 300 595 360(324-396) 218.7
    17 14D331K 210 275 550 330(297-363) 199.1
    18 14D301K 190 250 505 300(270-330) 183.1
    19 14D271K 175 225 455 270(243-297) 167.1
    20 14D241K 150 200 395 240(216-264) 149.3
    21 14D221K 140 180 360 220(198-242) 145.8
    22 14D201K 130 170 330 200(185-225) 141.9
    23 14D181K 115 150 300 180(162-198) 141.9
    24 14D151K 95 125 250 150(135-165) 104.5
    25 14D121K 75 100 200 120(108-132) 92.1
    26 14D101K 60 85 165 100(90-110) 72.2
    27 14D820K 50 65 135 82(74-90) 59.7
    28 14D680K 40 56 135 68(61-75) 24.0 2000 1000 0.1
    29 14D560K 35 45 110 65(50-62) 20.0
    30 14D470K 30 38 93 47(42-52) 17.0
    31 14D390K 25 31 77 39(35-43) 14.2
    32 14D330K 20 26 65 33(30-36) 13.0
    33 14D270K 17 22 53 27(24-30) 10.8
    34 14D220K 14 18 43 22(20-24) 8.5
    35 14D180L 10 14 38 18(15-21) 7.6

    metal oxide varistor 18D seriesmov varistor 18D
    N(Standard) Series
    Varistor Element Diameter:18mm
    J(High Surge&High Energy) Series
    Diameter:18mm
    Specifications
    1. Varistor voltage: 18~1100V
    2. Max. allowable voltage: 10~680V(AC) 14~895V(DC)
    3. Capacitance(reference)@1KHz:290-23000pf

    Specification&Part no.
    N(Standard) Series
    Element Disc Diameter:18mm

    Item Part No. Max Allowable Voltage Max Clamping Voltage   Varistor Voltage Energe 10/1000µS Withstanding Surge Current 8/20µS Rated Power
    ACrms(V) DC(V) VC IP at 1mA (J) (A) (W)
    (V) (A) (V)
    1 18D112K 680 895 1815 75 1100(990-1210) 252.0 6500 0.80
    2 18D102K 625 825 1650 1000(900-1100) 252.0
    3 18D911K 550 745 1500 910(819-1001) 252.0
    4 18D821K 510 670 1355 820(738-902) 238.0
    5 18D781K 485 640 1290 780(702-858) 238.0
    6 18D751K 460 615 1240 750(675-825) 238.0
    7 18D681K 420 560 1120 680(612-748) 203.0
    8 18D621K 385 505 1025 620(558-682) 203.0
    9 18D561K 350 460 920 560(504-616) 203.0
    10 18D511K 320 415 845 510(459-561) 182.0
    11 18D471K 300 385 775 470(423-517) 182.0
    12 18D431K 275 350 710 430(387-473) 175.0
    13 18D391K 250 320 650 390(351-429) 161.0
    14 18D361K 230 300 595 360(324-396) 152.0
    15 18D331K 210 275 550 330(297-363) 128.0
    16 18D301K 190 250 505 300(270-330) 122.0
    17 18D271K 175 225 455 270(243-297) 113.0
    18 18D241K 150 200 395 240(216-264) 100.0
    19 18D221K 140 180 360 220(198-242) 95.0
    20 18D201K 130 170 330 200(185-225) 91.0
    21 18D181K 115 150 300 180(162-198) 70.0
    22 18D151K 95 125 250 150(135-165) 60.0
    23 18D121K 75 100 200 120(108-132) 48.0
    24 18D101K 60 85 165 100(90-110) 41.0
    25 18D820K 50 65 135 82(74-90) 33.5
    26 18D680K 40 56 135 15 68(61-75) 27.0 1500 0.15
    27 18D560K 35 45 110 65(50-62) 23.0
    28 18D470K 30 38 93 47(42-52) 19.2
    29 18D390K 25 31 77 39(35-43) 14.4
    30 18D330K 20 26 65 33(30-36) 13.2
    31 18D270K 17 22 53 27(24-30) 10.8
    32 18D220K 14 18 43 22(20-24) 9.0
    33 18D180L 10 14 38 18(15-21) 7.2

    J(High Surge&High Energy) Series
    Element Disc Diameter:18mm

    Item Part No. Max Allowable Voltage Max Clamping Voltage   Varistor Voltage Energe 10/1000µS Withstanding Surge Current 8/20µS Rated Power
    ACrms(V) DC(V) VC IP at 1mA (J) (A) (W)
    (V) (A) (V)
    1 18D112K 680 895 1815 75 1100(990-1210) 495.0 8000 0.80
    2 18D102K 625 825 1650 1000(900-1100) 445.0
    3 18D911K 550 745 1500 910(819-1001) 405.0
    4 18D821K 510 670 1355 820(738-902) 375.0
    5 18D781K 485 640 1290 780(702-858) 350.0
    6 18D751K 460 615 1240 750(675-825) 335.0
    7 18D681K 420 560 1120 680(612-748) 320.0
    8 18D621K 385 505 1025 620(558-682) 310.0
    9 18D561K 350 460 920 560(504-616) 310.0
    10 18D511K 320 415 845 510(459-561) 300.0
    11 18D471K 300 385 775 470(423-517) 280.0
    12 18D431K 275 350 710 430(387-473) 248.0
    13 18D391K 250 320 650 390(351-429) 224.0
    14 18D361K 230 300 595 360(324-396) 208.0
    15 18D331K 210 275 550 330(297-363) 185.0
    16 18D301K 190 250 505 300(270-330) 173.0
    17 18D271K 175 225 455 270(243-297) 158.0
    18 18D241K 150 200 395 240(216-264) 134.0
    19 18D221K 140 180 360 220(198-242) 125.0
    20 18D201K 130 170 330 200(185-225) 102.0
    21 18D181K 115 150 300 180(162-198) 96.0
    22 18D151K 95 125 250 150(135-165) 85.0
    23 18D121K 75 100 200 120(108-132) 64.0
    24 18D101K 60 85 165 100(90-110) 53.0
    25 18D820K 50 65 135 82(74-90) 43.0
    26 18D680K 40 56 135 15 68(61-75) 41.0 2500 0.15
    27 18D560K 35 45 110 65(50-62) 32.0
    28 18D470K 30 38 93 47(42-52) 27.0
    29 18D390K 25 31 77 39(35-43) 21.0
    30 18D330K 20 26 65 33(30-36) 19.0
    31 18D270K 17 22 53 27(24-30) 16.0
    32 18D220K 14 18 43 22(20-24) 13.0
    33 18D180L 10 14 38 18(15-21) 11.0

    metal oxide varistor 20D seriesvaristor DXM 20D
    N(Standard) Series
    Varistor Element Diameter:20mm
    J(High Surge&High Energy) Series
    Varistor Element Diameter:20mm
    Specifications
    1. Varistor voltage: 18~1800V
    2. Max. allowable voltage: 10~1000V(AC) 14~1465V(DC)
    3. Capacitance(reference)@1KHz:320-28500pf

    Specification&Part no.
    N(Standard) Series
    Element Disc Diameter:20mm

    Item Part No. Max Allowable Voltage Max Clamping Voltage Varistor Voltage Energe 10/1000µS Withstanding Surge Current 8/20µS Rated Power
    ACrms(V) DC(V) at 100A at 1mA (J) 1 time 2 times (W)
    (V) (V) (A)
    1 20D182K 1000 1465 2970 1800(1620-1980) 560.0 6500 4000 1.0
    2 20D152K 900 1200 2475 1500(1350-1650) 420.0
    3 20D112K 680 895 1815 1100(990-1210) 280.0
    4 20D102K 625 825 1650 1000(900-1100) 280.0
    5 20D911K 550 745 1500 910(819-1001) 280.0
    6 20D821K 510 670 1355 820(738-902) 266.0
    7 20D781K 485 640 1290 780(702-858) 266.0
    8 20D751K 460 615 1240 750(675-825) 266.0
    9 20D681K 420 560 1120 680(612-748) 224.0
    10 20D621K 385 505 1025 620(558-682) 224.0
    11 20D561K 350 460 920 560(504-616) 210.0
    12 20D511K 320 415 845 510(459-561) 210.0
    13 20D471K 300 385 775 470(423-517) 210.0
    14 20D431K 275 350 710 430(387-473) 196.0
    15 20D391K 250 320 650 390(351-429) 182.0
    16 20D361K 230 300 595 360(324-396) 168.0
    17 20D331K 210 275 550 330(297-363) 140.0
    18 20D301K 190 250 505 300(270-330) 133.0
    19 20D271K 175 225 455 270(243-297) 126.0
    20 20D251K 160 205 415 250(225-275) 116.0
    21 20D241K 150 200 395 240(216-264) 112.0
    22 20D221K 140 180 360 220(198-242) 105.0
    23 20D201K 130 170 330 200(185-225) 98.0
    24 20D181K 115 150 300 180(162-198) 84.0
    25 20D151K 95 125 250 150(135-165) 70.0
    26 20D121K 75 100 200 120(108-132) 56.0
    27 20D101K 60 85 165 100(90-110) 42.0
    28 20D820K 50 65 135 82(74-90) 37.8
    29 20D680K 40 56 135 68(61-75) 23.8 2000 1000 0.2
    30 20D560K 35 45 110 65(50-62) 19.6
    31 20D470K 30 38 93 47(42-52) 16.8
    32 20D390K 25 31 77 39(35-43) 13.2
    33 20D330K 20 26 65 33(30-36) 11.2
    34 20D270K 17 22 53 27(24-30) 9.1
    35 20D220K 14 18 43 22(20-24) 7.4
    36 20D180L 10 14 38 18(15-21) 6.1

    J(High Surge&High Energy) Series
    Element Disc Diameter:20mm

    Item Part No. Max Allowable Voltage Max Clamping Voltage Varistor Voltage Energe 10/1000µS Withstanding Surge Current 8/20µS Rated Power
    ACrms(V) DC(V) at 100A at 1mA (J) 1 time 2 times (W)
    (V) (V) (A)
    1 20D182K 1000 1465 2970 1800(1620-1980) 860.0 10000 7000 1.0
    2 20D152K 900 1200 2475 1500(1350-1650) 780.0
    3 20D112K 680 895 1815 1100(990-1210) 620.0
    4 20D102K 625 825 1650 1000(900-1100) 560.0
    5 20D911K 550 745 1500 910(819-1001) 510.0
    6 20D821K 510 670 1355 820(738-902) 460.0
    7 20D781K 485 640 1290 780(702-858) 421.0
    8 20D751K 460 615 1240 750(675-825) 420.0
    9 20D681K 420 560 1120 680(612-748) 382.0
    10 20D621K 385 505 1025 620(558-682) 381.0
    11 20D561K 350 460 920 560(504-616) 380.0
    12 20D511K 320 415 845 510(459-561) 380.0
    13 20D471K 300 385 775 470(423-517) 350.0
    14 20D431K 275 350 710 430(387-473) 305.0
    15 20D391K 250 320 650 390(351-429) 275.0
    16 20D361K 230 300 595 360(324-396) 255.0
    17 20D331K 210 275 550 330(297-363) 228.0
    18 20D301K 190 250 505 300(270-330) 210.0
    19 20D271K 175 225 455 270(243-297) 190.0
    20 20D241K 150 200 395 240(216-264) 168.0
    21 20D221K 140 180 360 220(198-242) 155.0
    22 20D201K 130 170 330 200(185-225) 140.0
    23 20D181K 115 150 300 180(162-198) 130.0
    24 20D151K 95 125 250 150(135-165) 106.0
    25 20D121K 75 100 200 120(108-132) 85.0
    26 20D101K 60 85 165 100(90-110) 70.0
    27 20D820K 50 65 135 82(74-90) 56.0
    28 20D680K 40 56 135 68(61-75) 49.0 3000 1000 0.2
    29 20D560K 35 45 110 65(50-62) 41.0
    30 20D470K 30 38 93 47(42-52) 34.0
    31 20D390K 25 31 77 39(35-43) 28.0
    32 20D330K 20 26 65 33(30-36) 24.0
    33 20D270K 17 22 53 27(24-30) 19.0
    34 20D220K 14 18 43 22(20-24) 16.0
    35 20D180L 10 14 38 18(15-21) 13.0

    metal oxide varistor DXNM 25D
    metal oxide varistor 25D series
    Specifications
    1. Varistor voltage: 18~1600V
    2. Max. allowable voltage: 10~1000V(AC) 14~1280V(DC)
    3. Capacitance(reference)@1KHz:450-45000pf

    Specification&Part no.
    N(Standard) Series
    Element Disc Diameter:25mm

    Item Part No. Max Allowable Voltage Max Clamping Voltage Varistor Voltage Energe 10/1000µS Withstanding Surge Current 8/20µS Rated Power
    ACrms(V) DC(V) VC IP at 1mA (J) (A) (W)
    (V) (A) (V)
    1 25D162K 1000 1280 2640 150 1600(1400-1760) 805.0 18000 1.20
    2 25D142K 880 1140 2310 1200(1200-1540) 697.0
    3 25D122K 750 990 1980 1200(1080-1320) 631.0
    4 25D112K 680 895 1815 1100(990-1210) 620.0
    5 25D102K 625 825 1650 1000(900-1100) 565.0
    6 25D911K 550 745 1500 910(819-1001) 510.0
    7 25D821K 510 670 1355 820(738-902) 460.0
    8 25D781K 485 640 1290 780(702-858) 440.0
    9 25D751K 460 615 1240 750(675-825) 420.0
    10 25D681K 420 560 1120 680(612-748) 380.0
    11 25D621K 385 505 1025 620(558-682) 380.0
    12 25D561K 350 460 920 560(504-616) 380.0
    13 25D511K 320 415 845 510(459-561) 382.0
    14 25D471K 300 385 775 470(423-517) 350.0
    15 25D431K 275 350 710 430(387-473) 305.0
    16 25D391K 250 320 650 390(351-429) 275.0
    17 25D361K 230 300 595 360(324-396) 255.0
    18 25D331K 210 275 550 330(297-363) 228.0
    19 25D301K 190 250 505 300(270-330) 210.0
    20 25D271K 175 225 455 270(243-297) 190.0
    21 25D241K 150 200 395 240(216-264) 168.0
    22 25D221K 140 180 360 220(198-242) 155.0
    23 25D201K 130 170 330 200(185-225) 140.0
    24 25D181K 115 150 300 180(162-198) 130.0
    25 25D151K 90 125 250 150(135-165) 106.0
    26 25D121K 75 100 200 120(108-132) 85.0
    27 25D101K 60 85 165 100(90-110) 70.0
    28 25D820K 50 65 135 82(74-90) 56.0
    29 25D680K 40 56 135 30 68(61-75) 49.0 4500 0.25
    30 25D560K 35 45 110 65(50-62) 41.0
    31 25D470K 30 38 93 47(42-52) 34.0
    32 25D390K 25 31 77 39(35-43) 28.0
    33 25D330K 20 26 65 33(30-36) 24.0
    34 25D270K 17 22 53 27(24-30) 19.0
    35 25D220K 14 18 43 22(20-24) 16.0
    36 25D180L 10 14 38 18(15-21) 13.0

    J(High Surge&High Energy) Series
    Element Disc Diameter:25mm

    Item Part No. Max Allowable Voltage Max Clamping Voltage Varistor Voltage Energe 10/1000µS Withstanding Surge Current 8/20µS Rated Power
    ACrms(V) DC(V) VC IP at 1mA (J) (A) (W)
    (V) (A) (V)
    1 25D162K 1000 1280 2640 150 1600(1400-1760) 970.0 15000 1.20
    2 25D142K 880 1140 2310 1200(1200-1540) 850.0
    3 25D122K 750 990 1980 1200(1080-1320) 770.0
    4 25D112K 680 895 1815 1100(990-1210) 770.0
    5 25D102K 625 825 1650 1000(900-1100) 685.0
    6 25D911K 550 745 1500 910(819-1001) 620.0
    7 25D821K 510 670 1355 820(738-902) 570.0
    8 25D781K 485 640 1290 780(702-858) 530.0
    9 25D751K 460 615 1240 750(675-825) 510.0
    10 25D681K 420 560 1120 680(612-748) 460.0
    11 25D621K 385 505 1025 620(558-682) 450.0
    12 25D561K 350 460 920 560(504-616) 440.0
    13 25D511K 320 415 845 510(459-561) 420.0
    14 25D471K 300 385 775 470(423-517) 400.0
    15 25D431K 275 350 710 430(387-473) 380.0
    16 25D391K 250 320 650 390(351-429) 360.0
    17 25D361K 230 300 595 360(324-396) 330.0
    18 25D331K 210 275 550 330(297-363) 300.0
    19 25D301K 190 250 505 300(270-330) 275.0
    20 25D271K 175 225 455 270(243-297) 255.0
    21 25D241K 150 200 395 240(216-264) 220.0
    22 25D221K 140 180 360 220(198-242) 200.0
    23 25D201K 130 170 330 200(185-225) 190.0
    24 25D181K 115 150 300 180(162-198) 175.0
    25 25D151K 90 125 250 150(135-165) 160.0
    26 25D121K 75 100 200 120(108-132) 120.0
    27 25D101K 60 85 165 100(90-110) 100.0
    28 25D820K 50 65 135 82(74-90) 80.0
    29 25D680K 40 56 135 30 68(61-75) 70.0 3000 0.25
    30 25D560K 35 45 110 65(50-62) 60.0
    31 25D470K 30 38 93 47(42-52) 50.0
    32 25D390K 25 31 77 39(35-43) 40.0
    33 25D330K 20 26 65 33(30-36) 35.0
    34 25D270K 17 22 53 27(24-30) 30.0
    35 25D220K 14 18 43 22(20-24) 25.0
    36 25D180L 10 14 38 18(15-21) 20.0

    metal oxide varistor 32D seriesvaristor DXM 32D621K
    Specifications
    1. Varistor voltage: 33~1600V
    2. Max. allowable voltage: 20~1000V(AC) 26~1280V(DC)
    3. Capacitance(reference)@1KHz:700-6200pf

    Specification&Part no.
    J(High Surge&High Energy) Series
    Element Disc Diameter:32mm

    Item Part No. Max Allowable Voltage Max Clamping Voltage Varistor Voltage Energe 10/1000µS Withstanding Surge Current 8/20µS
    ACrms(V) DC(V) VC IP at 1mA (J) 1 time 2 times
    (V) (A) (V) (A)
    1 32D162K 1000 1280 2640 200 1600(1400-1760) 1080 25000 20000
    2 32D142K 880 1140 2310 1400(1260-1540) 1020
    3 32D122K 750 990 1980 1200(1080-1320) 960
    4 32D112K 680 895 1815 1100(990-1210) 910
    5 32D102K 625 825 1650 1000(900-1100) 810
    6 32D951K 575 765 1570 950(855-1045) 780
    7 32D911K 550 745 1500 910(819-1001) 750
    8 32D821K 510 670 1355 820(738-902) 700
    9 32D781K 485 640 1290 780(702-858) 660
    10 32D751K 460 615 1240 750(675-825) 620
    11 32D681K 420 560 1120 680(612-748) 600
    12 32D621K 385 505 1025 620(558-682) 570
    13 32D561K 350 460 920 560(504-616) 540
    14 32D511K 320 415 845 510(459-561) 510
    15 32D471K 300 385 775 470(423-517) 460
    16 32D431K 275 350 710 430(387-473) 430
    17 32D391K 250 320 650 390(351-429) 400
    18 32D361K 230 300 595 360(324-396) 380
    19 32D331K 210 275 550 330(297-363) 360
    20 32D301K 190 250 505 300(270-330) 330
    21 32D271K 175 225 455 270(243-297) 300
    22 32D241K 150 200 395 240(216-264) 290
    23 32D221K 140 180 360 220(198-242) 270
    24 32D201K 130 170 330 200(185-225) 270
    25 32D181K 115 150 300 180(162-198) 225
    26 32D151K 90 125 250 150(135-165) 190
    27 32D121K 75 100 200 120(108-132) 150
    28 32D101K 60 85 165 100(90-110) 125
    29 32D820K 50 65 135 82(74-90) 100
    30 32D680K 40 56 135 40 68(61-75) 85 10000 8000
    31 32D560K 35 45 110 65(50-62) 70
    32 32D470K 30 38 93 47(42-52) 60
    33 32D390K 25 31 77 39(35-43) 50
    34 32D330K 20 26 65 33(30-36) 40

    metal oxide varistor 40D seriesvaristor DXM 40D431K
    Specifications
    1. Varistor voltage: 200~1600V
    2. Max. allowable voltage: 130~1000V(AC) 170~1280V(DC)
    3. Capacitance(reference)@1KHz:1150-8400pf
    Specification&Part no.
    J(High Surge&High Energy) Series
    Element Disc Diameter:40mm

    Item Part No. Max Allowable Voltage Max Clamping Voltage Varistor Voltage Energe 10/1000µS Withstanding Surge Current 8/20µS
    ACrms(V) DC(V) VC IP at 1mA (J) 1 time 2 times
    (V) (A) (V) (A)
    1 40D162K 1000 1280 2640 300 1600(1400-1760) 1700 40000 30000
    2 40D142K 880 1140 2310 1400(1260-1540) 1550
    3 40D122K 750 990 1980 1200(1080-1320) 1380
    4 40D112K 680 895 1815 1100(990-1210) 1380
    5 40D102K 625 825 1650 1000(900-1100) 1260
    6 40D951K 575 765 1570 950(855-1045) 1200
    7 40D911K 550 745 1500 910(819-1001) 1150
    8 40D821K 510 670 1355 820(738-902) 1080
    9 40D781K 485 640 1290 780(702-858) 980
    10 40D751K 460 615 1240 750(675-825) 940
    11 40D681K 420 560 1120 680(612-748) 900
    12 40D621K 385 505 1025 620(558-682) 860
    13 40D511K 320 415 845 510(459-561) 770
    14 40D471K 300 385 775 470(423-517) 720
    15 40D431K 275 350 710 430(387-473) 660
    16 40D391K 250 320 650 390(351-429) 590
    17 40D361K 230 300 595 360(324-396) 570
    18 32D331K 210 275 550 330(297-363) 550
    19 40D271K 175 225 455 270(243-297) 470
    20 40D241K 150 200 395 240(216-264) 430
    21 40D201K 130 170 330 200(185-225) 370

    metal oxide varistor 53D seriesvaristor DXM 53D221K
    Specifications
    1. Varistor voltage: 200~1600V
    2. Max. allowable voltage: 130~1000V(AC) 170~1280V(DC)
    3. Capacitance(reference)@1KHz:1900-15000pf
    Specification&Part no.
    J(High Surge&High Energy) Series
    Element Disc Diameter:53mm

    Item Part No. Max Allowable Voltage Max Clamping Voltage Varistor Voltage Energe 10/1000µS Withstanding Surge Current 8/20µS
    ACrms(V) DC(V) VC IP at 1mA (J) 1 time 2 times
    (V) (A) (V) (A)
    1 53D162K 1000 1280 2640 500 1600(1400-1760) 2500 70000 50000
    2 53D142K 880 1140 2310 1400(1260-1540) 2300
    3 53D122K 750 990 1980 1200(1080-1320) 2050
    4 53D112K 680 895 1815 1100(990-1210) 2050
    5 53D102K 625 825 1650 1000(900-1100) 1890
    6 53D951K 575 765 1570 950(855-1045) 1800
    7 53D911K 550 745 1500 910(819-1001) 1700
    8 53D821K 510 670 1355 820(738-902) 1600
    9 53D781K 485 640 1290 780(702-858) 1450
    10 53D751K 460 615 1240 750(675-825) 1400
    11 53D681K 420 560 1120 680(612-748) 1350
    12 53D621K 385 505 1025 620(558-682) 1300
    13 53D511K 320 415 845 510(459-561) 1150
    14 53D471K 300 385 775 470(423-517) 1080
    15 53D431K 275 350 710 430(387-473) 990
    16 53D391K 250 320 650 390(351-429) 885
    17 53D361K 230 300 595 360(324-396) 850
    18 53D331K 210 275 550 330(297-363) 825
    19 53D271K 175 225 455 270(243-297) 700
    20 53D241K 150 200 395 240(216-264) 650
    21 53D201K 130 170 330 200(185-225) 550

    metal oxide varistor 34S seriesmov varistor DXM 34S112K
    Specifications
    1. Varistor voltage: 200~1600V
    2. Max. allowable voltage: 130~1000V(AC) 170~1280V(DC)
    3. Capacitance(reference)@1KHz:1100-8000pf

    Specification&Part no.
    J(High Surge&High Energy) Series
    Element Disc 34×34 square shape

    Item Part No. Max Allowable Voltage Max Clamping Voltage Varistor Voltage Energe 10/1000µS Withstanding Surge Current 8/20µS
    ACrms(V) DC(V) VC IP at 1mA (J) 1 time 2 times
    (V) (A) (V) (A)
    1 34S162K 1000 1280 2640 500 1600(1400-1760) 1500 70000 50000
    2 34S142K 880 1140 2310 1400(1260-1540) 1400
    3 34S122K 750 990 1980 1200(1080-1320) 1250
    4 34S112K 680 895 1815 1100(990-1210) 1250
    5 34S102K 625 825 1650 1000(900-1100) 1120
    6 34S951K 575 765 1570 950(855-1045) 1080
    7 34S911K 550 745 1500 910(819-1001) 1050
    8 34S821K 510 670 1355 820(738-902) 970
    9 34S781K 485 640 1290 780(702-858) 930
    10 34S751K 460 615 1240 750(675-825) 850
    11 34S681K 420 560 1120 680(612-748) 810
    12 34S621K 385 505 1025 620(558-682) 780
    13 34S561K 350 460 920 560(504-616) 730
    14 34S511K 320 415 845 510(459-561) 700
    15 34S471K 300 385 775 470(423-517) 650
    16 34S431K 275 350 710 430(387-473) 600
    17 34S391K 250 320 650 390(351-429) 530
    18 34S361K 230 300 595 360(324-396) 510
    19 34S331K 210 275 550 330(297-363) 500
    20 34S271K 175 225 455 270(243-297) 420
    21 34S241K 150 200 395 240(216-264) 390
    22 34S221K 140 180 360 220(198-242) 360
    23 34S201K 130 170 330 200(185-225) 330

    Packing specification:

    Item Part No. Bulk Reel Ammo
    Bag Box Carton Box Carton Box Carton
    1 05D 8R0M-391K 1000 2000 12000 2000 16000 2000 10000
    2 431K-751K 1500 7500
    3 07D 8R0M-391K 1000 2000 12000 2000 16000 2000 10000
    4 431K-821K 1500 7500
    5 10D All 500 1000 6000 500 3500 500 5000
    6 14D 120M-471K 500 1000 6000 500 3500 500 5000
    7 511K-182K 250 500 3000 400 2800 500 5000
    8 18D 180L-471K 250 500 3000 400 2800 400 3000
    9 511K-112K 150 300 2000 300 2500 400 2800
    10 20D 180L-471K 250 500 3000 400 2800 400 2800
    11 511K-182K 125 250 1500 300 2100 300 2100
    12 25D All 125 250 1500
    13 32D All 20 80 480
    14 34S All 15 60 360
    15 40D All 15 60 360

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