Certificación de termistor de alta calidad

Types and applications of power NTC thermistors

Sep 05, 2024

    At present, our Nanjing Shiheng Electronics' power products are divided into six categories: MF11 products

    MF72 products MF73 products MF74 products MF75 products, as shown below:

    The function of the power NTC thermistor is to avoid the surge current generated in the electronic circuit at the moment of power-on. Therefore, connecting a power NTC thermistor in series in the power supply circuit can effectively suppress the surge current at power-on. After the surge current suppression function is completed, due to the continuous action of the current passing through it, the resistance value of the power NTC thermistor will drop to a very small level. The power it consumes can be ignored and will not affect the normal working current. Therefore, using a power NTC thermistor in the power supply circuit is the simplest and most effective measure to suppress the surge at power-on to ensure that the electronic equipment is not damaged.

    MF72, MF73T-1 series products are applicable to the protection of filaments of conversion power supplies, switching power supplies, UPS power supplies, electronic energy-saving lamps, electronic ballasts and various heaters, incandescent lamps and other lighting fixtures. Different customers have different needs and use different products. Different requirements can choose different products to better meet the needs of customers.

    For high-power switching power supplies, high-power power battery chargers, electric vehicle chargers, charging piles, motor drive devices, high-power servo motor drivers, logic controllers, high-power toroidal transformers, high-power LED lamps, nuclear magnetic resonance equipment, industrial robots driven by high-voltage power supplies, low-voltage intelligent electric cabinets and other equipment, there will usually be a larger surge current at startup. This current value exceeds the upper limit of most components in the equipment. In this case, certain protection measures must be taken for these components. This requires the use of Nanjing Shiheng Electronics' ultra-high power MF73T-1, MF73T-2, MF73, MF74, MF75 series NTC thermistors.

    With its unique process and leading technology, Shiheng Electronics produces NTC thermistor products with outstanding advantages such as high precision, high reliability and high stability, which are at the leading level in the industry. The NTC thermistor series covers applications such as surge suppression, temperature compensation, precision temperature measurement and temperature control. The power NTC thermistor produced has a strong ability to suppress surge current. The maximum capacitance in the internal control standard is two gears higher than the standard value. In particular, the B value is large and the residual resistance is small. The same electrical performance has a smaller volume and lower power. In addition, the main power product series have all passed UL, TUV and CQC safety certifications. The products have high reliability and good safety, and are deeply favored by users.

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