5KASMC30AHM3/9A

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TVS - Diodes

TVS (Transient Voltage Suppressor) diodes, also known as surge suppressor diodes, are designed to protect integrated circuits, circuit boards, sensor circuits, and other electronic components from the damaging effects of a transient voltage spike. TVS diodes are composed of a metal oxide varistor (MOV) and a diode connected in series. The 5KASMC30AHM3/9A TVS diode is part of the Transil SMTP family of transient voltage surge suppressors. It is designed for use in electronic equipment in need of protection against fast transients such as IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), or IEC 61000-4-5 (Surge) events.

Application Field

The 5KASMC30AHM3/9A is designed for use in a wide range of applications, including computers, consumer electronics, communication systems, industrial automation, medical electronics, and automotive systems. It is suitable for protecting external interfaces such as USB ports, RS 232 ports, and Fire Wire ports, as well as internal circuits such as gate drivers, IO lines, analog switches, and power supply lines.

Working Principle

In normal operation, the diode is forward biased and the MOV is reverse biased; thus, it doesn’t conduct any current to the load. When a transient develops, the diode becomes forward biased and the MOV begins to conduct. The MOV acts as a short circuit, allowing the current to bypass the load and prevent it from being damaged. The device returns to its original state once the transient has passed. The 5KASMC30AHM3/9A also provides protection against load-induced transients, as the MOV absorbs the surge energy and dissipates it, thus protecting the load.

The 5KASMC30AHM3/9A is a high-performance protection diode offering excellent ESD and surge protection, and is well-suited for use in applications where transient protection is critical. It is easy to install, cost-effective, and provides reliable protection against ESD and surge events. Additionally, it is RoHS compliant and UL recognized.

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