1PMT33AT1G

A TVS Diode (Transient Voltage Suppression) is an electronic component designed to protect a circuit against transient voltage surges. The 1PMT33AT1G is a surface mount diode, designed specifically for automotive applications. This device offers a high peak pulse power rating with a unidirectional breakdown voltage range of 20 to 45 volts. Here is an overview of its capabilities, application field, and working principle.

Applications

The 1PMT33AT1G is specially designed for automotive applications. It offers protection against high voltage spikes caused by load switches, secondary ignition sparks, and induced transients. It can also protect against current induced surge currents in Lithium-ion battery applications. Other applications include lighting systems, electric motors, audio amplifiers, etc.

Working Principle

The 1PMT33AT1G is a unidirectional device, meaning it conducts electricity only in one direction. In other words, it behaves like a rectifier. When used in an automotive application, the diode will dissipate the incoming transient voltage and block it from reaching the sensitive electronics in the circuit. It does this by utilizing a Zener breakdown mechanism that allows for a voltage-controlled, breakdown current.

Packaging

The 1PMT33AT1G is available in a small SOD-323 package. It features an integrated Tab for a secure mounting. It can easily be soldered onto a circuit board using reflow soldering techniques. It is typically used in applications where size and weight savings are important, such as automotive and portable electronics.

Summary

The 1PMT33AT1G transient voltage suppression (TVS) diode is designed specifically for automotive applications. It offers protection against high voltage spikes and surge currents. Its Zener breakdown mechanism dissipates incoming transient voltage, blocking it from reaching the sensitive electronics in the circuit. The device is available in a small SOD-323 package and can be easily soldered using reflow techniques. It is ideal for applications where size and weight savings are important.