SM2S10AHE3/5AT Circuit Protection

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Transient Voltage Suppressors (TVSs) are used in in many applications to provide protection from transient voltage spikes. The SM2S10AHE3/5AT is a bidirectional uni-and bi-directional TVS Diodes and is designed to protect sensitive electronic devices from voltage transients caused by lightning and other transient voltage events. This TVS diode is designed to protect from destructive ESD, EFT, and lightning-induced surge events.

The terminal of the SM2S10AHE3/5AT is equipped with solder balls on one side and electrodes on the other side, so it can fit in a wide variety of applications. The integrated protection of the TVS diode includes a built-in low clamping voltage, a low dynamic impedance, and a very fast response time.

The SM2S10AHE3/5AT is designed for applications that require maximum voltage/current protection with little additional circuitry and components. It is widely used in many fields such as industrial equipment, communication equipment, automotive electronics, and consumer electronics to provide surge protection. The diode is capable of handling pulse currents up to 10A and is rated at 5.5V.

The working principle of the SM2S10AHE3/5AT is based on the mechanism of a Zener diode and a protection diode connected in series between the pin and the drain of the device. When a transient voltage such as lightning or ESD strikes, the Zener diode begins to conduct and reduces the voltage across the part. This voltage is clamped to a low value, which protects the device from the high voltage transient. The protection diode clamps the voltage on the other side and prevents the current from flowing in the opposite direction.

The SM2S10AHE3/5AT is designed to provide a minimum level of protection against high voltage transients. It is not suitable for protection against long duration transients or high peak currents. The diode is suitable for use in applications where wide input voltage ranges are encountered and where the circuit is not designed to tolerate high voltage spikes. The circuit designer must ensure that the device is selected and installed properly to meet the application requirements.

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