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    metal oxide varistor 05D series
      metal oxide varistor 05D series
      metal oxide varistor 05D series metal oxide varistor 05D series metal oxide varistor 05D series metal oxide varistor 05D series metal oxide varistor 05D series

      Varistor chip diameter: 5mm Electrical specifications: 1. Pressure sensitive voltage: 18~750V 2. Maximum allowable voltage: 11~460V(AC) 14~615V(DC) 3. Flow capacity (for reference)@1KHz: 30-1400pf V……

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  • Functional characteristics
  • Varistor chip diameter: 5mm
    Electrical specifications:
    1. Pressure sensitive voltage: 18~750V
    2. Maximum allowable voltage: 11~460V(AC) 14~615V(DC)
    3. Flow capacity (for reference)@1KHz: 30-1400pf

    Varistor product introduction:
    Varistor is a kind of metal oxide semiconductor nonlinear ceramic resistance element with zinc oxide as the main component. According to its voltammetry characteristics, it can be divided into two types: symmetric (non-polar) and asymmetric (polar). Resistance is more sensitive to voltage,
    When the voltage reaches a certain value, the resistance quickly switches on. Because the varistor has good non-line characteristics. Large flow, fast action and no continuous flow, etc., are widely used as surge protectors, lightning surge protectors and electronics
    Voltage equipment lightning protection to prevent such overvoltages from interfering with the normal operation of electronic voltage equipment or damaging various circuit components.

    application of varistor:
    Products as surge protectors are widely used in various fields of electronic engineering:
    1. Communication,
    2. Electricity,
    3. Home appliances,
    Specific such as: telephone, switch, electricity meter, distribution cabinet, socket box, distribution box, power switch, power surge protection box, power voltage regulator, lightning arrester (SPD surge protection special) and so on.

    metal oxide varistor working principle:
    When at rest, varistors have a high impedance (several megohm) relative to the protected electronic components and do not change the circuit characteristics of the original design
    When a transient surge voltage occurs (exceeding the breakdown voltage of the varistor), the impedance of the varistor becomes low (only a few ohms) and causes a short circuit of the original line.
    In other words, the electronic product or component is also protected.

    Advantages of varistors:
    1. Wide voltage range
    2. Large flow capacity, large energy tolerance
    3. Large nonlinear coefficient
    4. Small leakage current
    5. Symmetrical volt-ampere characteristics
    6. Residual depression
    7. Fast action, small response time
    8. No continuous flow
    9. Good voltage ratio
    10. Strong surge absorption capacity
    11. High efficiency surge current processing capability
    12. Stable execution ability of suppressed voltage characteristics
    13. Excellent material
    14. Work reliably
    15. Long life
    16. Widely used

    Varistor Naming rules:
    metal oxide varistor marking code

    Varistor packing specifications:

    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

    Varistor 05D series part of the product model summary table:
    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

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