3KASMC28AHM3_B/H Circuit Protection

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TVS (Transient Voltage Suppression) Diodes are an important type of electronic components designed to protect electronic circuits against high voltage transients and surges. The 3KASMC28AHM3_B/H is a TVS diode designed to protect against very high surge voltages and power dissipation levels. This device is very suitable for telecom, data communication and industrial applications where high reliability is crucial.

The 3KASMC28AHM3_B/H features a dual avalanche breakdown and has an ultra low leakage current (<1nA at 5VDC). The diode also has a fast transient response time (<1ns) and good clamping characteristics. Combined, these features provide high performance protection in high voltage, high power applications.

The main application field for the 3KASMC28AHM3_B/H is in telecom and data communication infrastructure where it can be used as a line protector, an over-voltage protector, and a surge protector. It can also be used in industrial equipment for protection against high-frequency transients and ESD (Electrostatic Discharge). In addition, the 3KASMC28AHM3_B/H is also suitable for Automotive power line protection, where it can be used to protect against EMP (Electromagnetic Pulse) events.

The working principle of the 3KASMC28AHM3_B/H is based on the principle of avalanche breakdown. In an avalanche breakdown, the electric field of the diode increases when the voltage exceeds a certain threshold, causing electrons to cross the junction and form a conduction channel. This allows the device to absorb high energy transients and keep the voltages in the local circuit at an acceptable level.

The 3KASMC28AHM3_B/H also features a dual avalanche breakdown, which means that it can handle two different surge currents simultaneously. In this mode, the device is able to support both the transient charging and the flush current that is needed to counteract the surge. This ensures that the diode will maintain its clamping capability even when faced with a high-voltage surge.

In conclusion, the 3KASMC28AHM3_B/H is an effective and reliable TVS diode designed for high voltage and high power applications. Its dual avalanche breakdown makes it very suitable for telecom, data communication and industrial applications where high reliability is needed. The device also features an ultra low leakage current, fast transient response times, and good clamping characteristics, making it well suited for Automotive power line protection.

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