SA7V0A

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Transil diodes, also known as TVS (Transient Voltage Suppressor) diodes, are devices used to protect circuitry fromvoltage spikes induced by electric transients. They limit the voltage applied to a specific level, effectively clamps the voltage to a safe level.

The SA7V0A Transil diode is a bi-directional device which seeks to protect circuits from electrical transients. It is designed to counteract the effects of transients caused by electrostatic discharge. It is applied to various high-power, high-frequency communication systems, including those operating in the communication, automotive and railway sectors.

This device is composed of a semiconductor die in a SOT-23 package, with three different-sized power pads for connection to a printed circuit board. The SA7V0A is ideal for applications where interference and electrostatic discharge are high. This device has an operating temperature range of -55°C to +150°C.

The SA7V0A application field and working principle are as follows: the device features an integrated RC damping network for improved protection against sharp transients in both directions. A zener-diode based circuit is used to lower the output voltage of the spike, protect the device from possible overvoltage transients. The capacitance value is tuned to conform to the operating environment to protect a wide range of circuits. It has a breakdown voltage of 16.5V and a peak pulse power dissipation of 500W. When a transient occurs, the breakdown voltage of the device is reached to create a voltage-controlled, low-loss electronic switch. This switching action clamps the voltage to a safe level and the energy is dissipated as a current pulse.

In practical applications, the SA7V0A Transil diode is used in communication systems and automotive electronic systems to protect them from high-power transient voltages that can exceed 40V. Additionally, when used in combination with voltage absorbing diodes and metal oxide varistors, the diode is substantially capable of protecting equipment from electrical surges, such as those caused by lightning.

The SA7V0A Transil diode is a cost-effective solution for protection of sensitive circuitry from voltage transients and overvoltages. It is designed to provide a high level of ESD and surge protection while maintaining a low clamping voltage. This device has been designed for use in a wide range of applications, from high-power, high-frequency communication systems to common commercial equipment, making it an ideal choice for keeping circuits safe and reliable.

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