Home > PRODUCTS > PTC Thermistors > PTC thermistor for Overcurrent and overload protection-MZ31 series > PTC thermistor for overcurrent and overload protection MZ8

  • Functional characteristics
  • Brief Introduction PTC thermistor for overcurrent and overload protection MZ8:
    MZ31 series MZ8 type PTC thermistor is a million- time safety thermistor of automatic circuit protection,recoverability, using repeatedly, and no trigger,
    noise or protective component that could protect and restore from abnormal temperature and current automatically,which called “auto restore fuse” and
    “ten-thousand-time fuse”.Recoverability, using repeatedly, and no trigger, noise or sparks.

    PTC thermistor for overcurrent and overload protection working principle:
    As indicated in Fig 2 as below,when circuit is in the normal state, the current through PTC thermistor is lower than the rated current and PTC thermistor
    is in the normal state with small resistance value,which will not affect the normal operation of the protected circuit such as primary and secondary loops
    of the voltage transformer.In case of some trouble in the circuit and the current is bigger than the rated current,the PTC thermistor will become hot
    quicklyand present high resistance value, which sets the circuit relatively “off” to protect the circuit from damage.After the trouble is removed,PTC thermistor
    will automatically restore its low resistance state and the circuit will resume normal operation.
    PTC thermistor MZ8 working principle

    Applications of PTC thermistor for overcurrent and overload protection:
    overvoltage protection,overload protection of digital multimeter,micromotor and transistor etc.

    Advantages:
    1.Automatic circuit protection,can resume steadily ;
    2.contactless,noiseless and flameless;
    3.reacts fast;
    4. with a better performance of overvoltage protection;
    5.small steady resistance;
    6.low rated current.
    7.RoHS compliant.

    Marking of Part Number:
    PTC thermistor MZ8 part number
    1.Series:PTC thermistor for overvoltage protection
    2.Type:1-disc,2-encased,3-pin form-coating,4-pin form non-coating,5-SMD
    3.Type:A-general, B-compount, C-moduie
    4.Chip size: 8-Φ8mm 9-Φ9mm 11-Φ11mm
    5.Curie temperature: F-50℃ H-75℃ N-100℃ P-120℃ K-125℃
    6.R25 resistance: 6R0-6Ω 6R5-6.5Ω 70R-70Ω 121-120Ω
    7.Resistance tolerance: K+/-10% M+/-20% H+/-25% N+/-30%
    8.Greatly voltage:250-250V 265-265V
    9.Wire shape: S-Straight, A-Axis formed, U-In-formed

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PTC thermistor for overcurrent and overload protection MZ8 PTC thermistor for overcurrent and overload protection MZ8 PTC thermistor for overcurrent and overload protection MZ8 PTC thermistor for overcurrent and overload protection MZ8 PTC thermistor for overcurrent and overload protection MZ8

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PTC thermistor for overcurrent and overload protection MZ8TEL: 18927361658 PTC thermistor for overcurrent and overload protection MZ8QQ: 1794139339 PTC thermistor for overcurrent and overload protection MZ8info@dxmht.com PTC thermistor for overcurrent and overload protection MZ8
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