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MZ21 PTC Thermistor 400~600 OHMS 220VAC 160C 8x2.5mm Stone Element for Over Heating Protection

    Buy cheap MZ21 PTC Thermistor 400~600 OHMS 220VAC 160C 8x2.5mm Stone Element for Over Heating Protection from wholesalers
     
    Buy cheap MZ21 PTC Thermistor 400~600 OHMS 220VAC 160C 8x2.5mm Stone Element for Over Heating Protection from wholesalers
    • Buy cheap MZ21 PTC Thermistor 400~600 OHMS 220VAC 160C 8x2.5mm Stone Element for Over Heating Protection from wholesalers
    • Buy cheap MZ21 PTC Thermistor 400~600 OHMS 220VAC 160C 8x2.5mm Stone Element for Over Heating Protection from wholesalers
    • Buy cheap MZ21 PTC Thermistor 400~600 OHMS 220VAC 160C 8x2.5mm Stone Element for Over Heating Protection from wholesalers
    • Buy cheap MZ21 PTC Thermistor 400~600 OHMS 220VAC 160C 8x2.5mm Stone Element for Over Heating Protection from wholesalers
    • Buy cheap MZ21 PTC Thermistor 400~600 OHMS 220VAC 160C 8x2.5mm Stone Element for Over Heating Protection from wholesalers

    MZ21 PTC Thermistor 400~600 OHMS 220VAC 160C 8x2.5mm Stone Element for Over Heating Protection

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    Brand Name : AFTPTC
    Model Number : MZ21-C08X6(400~600)R400
    Certification : ROHS
    Price : negotiable
    Payment Terms : T/T, Western Union, MoneyGram
    Supply Ability : 10,000,000,000pcs per month
    Delivery Time : 2 Weeks
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    MZ21 PTC Thermistor 400~600 OHMS 220VAC 160C 8x2.5mm Stone Element for Over Heating Protection

    MZ21 PTC Thermistor 400~600 OHMS 220VAC 160C 8x2.5mm Stone Element for Over Heating Protection


    Description

    PTCR (Positive Temperature Coefficient of Resistance) is the 1 kind of thermistor with strong positive temperature characteristics, mainly composed of BaTiO3,BaTiO3 ceramic is the 1 kind of typical ferroelectric material, room temperature resistivity is greater than 10 12 Ω cm, for insulator, after semi-conductive doping shows a strong PTC effect-room temperature resistivity is very low, with the increase of temperature, in the vicinity of the Curie point mutation, resulting in several orders of magnitude of change. This is because there is a barrier layer caused by surface states at the grain boundary of polycrystalline BaTiO3 semiconductor material. At Curie temperature, the grain boundary has ferroelectricity, the dielectric constant is very large, the barrier height is low, electrons can easily pass through the barrier, and the corresponding material resistivity is small. However, above Curie temperature, the crystal boundary layer has lattice transformation, ferroelectricity disappears, the dielectric constant increases sharply, and electrons are difficult to cross the barrier, the resistivity of the corresponding material rises sharply, which is shown as the PTC effect of the material macroscopically.


    Specification

    MZ21-C08X6(400~600)R400400~600Ω
    MZ21-C08X4821RM400820±20%Ω
    MZ21-C08X7251RQ400250Ω±30%

    Datasheet
    400-600-1400-600-2250-1250-2820-1820-2

    Photo

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    Quality MZ21 PTC Thermistor 400~600 OHMS 220VAC 160C 8x2.5mm Stone Element for Over Heating Protection for sale
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