TVS - Diodes

Transient Voltage Suppression (TVS) Diodes are a type of semiconductor device used to protect sensitive electronics from voltage transients or surges. They are similar to Zener Diodes, but they have a faster response time and a higher clamping voltage. In order for them to work, they rely on the same principle as an avalanche diode. When the voltage across them exceeds the avalanche voltage, the diode turns on and a large amount of current flows, limiting the voltage transient.

1PMT12AT1G Application Field and Working Principle

The 1PMT12AT1G is a transient voltage suppression (TVS) diode designed for over-voltage protection of automotive electronics. It is an unidirectional diode with an integrated thermal resistor, and it can protect sensitive components from transients of up to 28V. It is designed for use in Engine Control Module (ECM), Powertrain Control Module (PCM), Battery Management System (BMS), and other automotive electronics.

The 1PMT12AT1G works on the same principle as other TVS diodes. When a voltage transient exceeding the breakdown voltage is applied to the diode, the p-n junction switches on and a large amount of current flows, quickly clamping the voltage and thereby preventing the sensitive component from damage. The integrated thermal resistor helps limit the amount of current flowing through the diode and prevents it from overheating.

Conclusion

TVS Diodes are an important component for the protection of sensitive electronics from voltage transients and surges. The 1PMT12AT1G is a diode specifically designed for automotive applications, and it works on the same principle as other types of TVS Diodes. It is designed to protect components from voltage transients of up to 28V, and its integrated thermal resistor helps prevent it from overheating.