SA10-E3/54

The SA10-E3/54 TVS diode is an electronics component that provides enhanced protection against transient voltage events. It is a simple, reliable, and low-cost method to protect sensitive electrical systems, such as microprocessors, from electrical transients that can cause harm or systems failure.

TVS diodes are designed to protect against overvoltage events beyond normal operating conditions due to inductive switching, contact arcing, and lightning strikes. They also offer some protection against electrostatic discharge (ESD).

The SA10-E3/54 TVS diode is designed for the automotive industry. It has an operating temperature range of -55 °C to +150 °C and features a 10 mm height and 3 mm width. It is an unidirectional protection diode with an enhancement mode P-channel junction field-effect transistor (JFET). The SA10-E3/54 TVS diode has a peak pulse current of 300 A and a typical operating voltage range of 4 V to 40 V.

In applications such as Engine Control Units (ECUs), the SA10-E3/54 TVS diode is connected in parallel with the circuit it is designed to protect. This diode is placed across the power and ground lines of the circuit, allowing it to sense any potential voltage transients. If the voltage exceeds a certain limit, the diode will conduct and the charge will be diverted away from the ECU.

The working principle of the SA10-E3/54 TVS diode is simple and effective. When a voltage transient occurs, the diode is activated and begins to conduct. This activates the voltage clamp mechanism, which limits the voltage of the peak to a predetermined level. This protects the device from overvoltage. Moreover, the diode self-restores when the transient event has passed and then returns to its non-conductive state.

In summary, the SA10-E3/54 TVS diode provides enhanced protection against transient voltage events, such as contact arcing and lightning strikes. It is a low-cost method of protecting electrical systems and is designed specifically for the automotive industry, with an operating temperature range of -55 °C to +150 °C. Its working principle is straightforward – it diverts destructive voltage transients by activating a voltage clamp mechanism and then restoring itself when the transient event has passed.