SM6T39CAY

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SM6T39CAY is a TVS (Transient Voltage Suppressor) diode, which is designed to limit surge current or to protect against transient overvoltage. It is a silicon avalanche diode that is used as a unidirectional surge suppressor, or to protect sensitive electronic circuits from transient voltage spikes. This diode is designed specifically for electronic circuit protection.

Application Field

The SM6T39CAY is mainly used in applications where power protection is needed. The diode is designed for general protection from high voltage transient pulses with a peak pulse power of 400 watts. It can be used to protect data lines such as USB ports, HDMI ports, VGA ports, or any other type of data or signal port. It can also be used in computer networking or in telecom applications. Other applications include data line protection in LEO and GEO satellites, industrial control and automation, photovoltaic systems, medical equipment, automotive data lines, automotive entertainment systems, and military electronics.

Working Principle

SM6T39CAY is an inversely biased Avalanche diode which clamps voltages which exceed its breakdown voltage. Under normal circumstances, the diode is not conducting. When a surge voltage is applied, the diode turns on and starts to conduct a current with relatively low voltage drop and low forward voltage. When the surge is over, the diode switches off and returns to being a non-conductive state. Since the voltage drop across the diode is small, power dissipation is minimized and no damage is caused to the circuit. Since this diode is unidirectional, it is ideal for overvoltage protection or for polarity sensitive protection.

The SM6T39CAY is designed to handle high voltage transients and has a surge capability of 400W peak power. Its high surge capability allows it to handle more than ten times the normal voltage without exceeding the diode\'s maximum peak forward current. It also offers excellent clamping performance with a peak pulse power rating of 400W and a maximum operating temperature of 150°C. The device also offers high surge capability and excellent clamping performance.

In summary, the SM6T39CAY is a TVS diode designed for use in applications where power protection is needed. The diode works by clamping voltages which exceed its breakdown voltage under forward bias, with a peak pulse power of 400W and a maximum operating temperature of 150°C. It is ideal for data line protection in LEO and GEO satellites, industrial control and automation, photovoltaic systems, medical equipment, automotive data lines, automotive entertainment systems, and military electronics.

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