SMAJ16AHM2G Circuit Protection

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TVS-Diodes provide protection from damaging transient voltages which can result from ESD or electrical overstress. The SMAJ16AHM2G is a popular part for TVS-Diode protection, and is used in a multitude of consumer and industrial applications. In this article, we\'ll discuss the application field and working principle of the SMAJ16AHM2G.

Overview of SMAJ16AHM2G

The SMAJ16AHM2G is a 1500 watt Uni-Directional (unidirectional) Transient Voltage Suppressor (TVS) diode with an ultra-low profile, double-side cooling design. It is designed for primary protection of data lines in a variety of high-speed applications. The device is a low capacitance switching diode constructed in an SMB (or SOT-323) package.

The SMAJ16AHM2G has an operating voltage range of 14 Volts (V) to 36V, making it well suited for protection from voltage transients in a vast array of environments including automotive, industrial, and medical. Its peak clamping voltage is 30V +/- 5%, which makes it ideal for suppressing transients on data lines like UART, I2C, SPI, etc. Its breakdown voltage range is 8V-14V.

Application Field of SMAJ16AHM2G

The SMAJ16AHM2G is widely used for protection of various data lines in electronic systems such as those used in the automotive, industrial, and medical fields. In automotive applications, the device is used to protect the Vehicle Control Network (VCN), Vehicle Control Area Network (VCAN), as well as other wiring harnesses. In industrial and medical settings, the SMAJ16AHM2G is used for protection from ESD events and electrical overstress on I2C, SPI, UART, and other high-speed data buses. The device is also used to protect devices from electromagnetic interference (EMI).

Working Principle of SMAJ16AHM2G

The SMAJ16AHM2G is a Transient Voltage Suppressor (TVS) diode, which means its primary purpose is to clamp transient voltage spikes on data lines and protect the device being used. The device is unidirectional, meaning it only allows current to flow in one direction. The device consists of two diodes; a P-type diode and an N-type diode, that are connected back to back. When the voltage on the line becomes too high, the P-type diode conducts, allowing the excess current to pass through to ground. This protects the device by preventing the voltage from becoming too high.

When the voltage begins to increase, the P-type diode conducts, allowing the current to pass through the device to ground. This results in a decrease in

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