NTC thermistor (black / green)
NTC (Negative Temperature Coefficient) thermistor is a type of thermistor semiconductor resistor, the resistance value of which decreases as the temperature rises, the temperature coefficient of resistance is in the range of -2% / k ~ -6% / k, which is about metal 10 times the temperature coefficient of resistance. The change in the resistance of the NTC thermistor can be caused by changes in the external ambient temperature, or it can be caused by current flowing and self-heating. His various uses are based on this characteristic. NTC thermistors are made of mixed oxide polycrystalline ceramics. The conductivity mechanism of this material is quite complicated.
NTC thermistors are widely used in various handheld devices and miniaturized electronic devices, and are also widely used in various temperature measurement and temperature compensation, surge suppression and other occasions. The company produces NTC thermistors with low price, good quality and completeness. Can replace foreign brands such as Murata, TDK, EPCOS.
1. Product introduction
In order to avoid the surge current generated in the electronic circuit at the moment of startup, a power-type NTC thermistor is connected in series in the power circuit, which can effectively suppress the surge current at startup, and after completing the role of suppressing the surge current, Due to the continuous effect of its current, the resistance value of the power type NTC thermistor will drop to a very small degree, the power it consumes is negligible, and it will not affect the normal working current, so it is used in the power circuit Power type NTC thermistor is the simplest and most effective measure to suppress the surge during startup to ensure that electronic equipment is not damaged.
2. Application range
It is suitable for the protection of switching power supply, switching power supply, UPS power supply, various electric heaters, electronic energy-saving lamps, electronic ballasts, various electronic device power circuits, and the filament protection of color display tubes, incandescent lamps and other lighting fixtures.
3. Features:
Small size, high power, strong ability to suppress inrush current
· Fast response
· Big material constant (B value), small residual resistance
Long life and high reliability
Full range, wide working range
