SA45CAHE3/54 Circuit Protection

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Introduction

SA45CAHE3/54 is a type of transient voltage suppressor (TVS). The part is designed to protect sensitive electronic components from over voltage transients such as electromechanical shocks and impulses. TVS diodes act quickly and are highly efficient in suppressing dangerous voltage spikes.

Application Field

SA45CAHE3/54 can be used in many different applications that require transient voltage protection. Some of the most common application fields are consumer electronics, automotive, telecommunications, computer systems and medical devices. All of these application fields are often subject to high voltage transients which require a dependable TVS device such as the SA45CAHE3/54.

Working Principle

The working principle of a transient voltage suppressor is based on the principle of breakdown of an insulator. When the applied voltage is high enough, the electrons in the material gain enough energy to move through the insulators, creating an avalanche breakdown. The result is a sudden decrease in the resistance between the two electrodes, resulting in a fast absorption of energy. This energy is stored in the TVS diode as a capacitor and released slowly, suppressing the undesirable voltage peak.

Features

The SA45CAHE3/54 is designed for superior performance with fast response time and low clamping voltage. The device is also designed to withstand reverse polarity, electrostatic discharge, voltage surge, overcurrent and lightning strikes. It also features current derating capability as well as conformal coating for added protection. Moreover, the device has an ultrasonic power of up to 960 Amps, while its power rating is rated at 13.6 Watts.

Conclusion

The SA45CAHE3/54 is a TVS diode designed for excellent performance and protection of sensitive electronic components from high voltage transients. Its application fields range from consumer electronics to automotive, telecommunications, computer systems and medical devices. Its working principle is based on the breakdown of an insulator, while its features include fast response time and low clamping voltage, reverse polarity, ESD and lightning strikes protection, current derating capability and conformal coating.

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