SA17A-E3/73 Circuit Protection

TVS is a type of semiconductor diode that stands for transient voltage suppression diode. It is also known as a suppression diode. It is a diode designed to suppress transient voltages. TVS diodes are designed to protect against overvoltage and surge events. The SA17A-E3/73 is an example of a TVS diode. It is a high-power suppressor diode that provides protection against electrostatic discharge (ESD).

The SA17A-E3/73 has a wide operating temperature range from -40°C to 175°C and is RoHS compliant. The TVS diode’s maximum operating voltage is 25V. Its power rating is 22uA and its response time is under 1ns. The SA17A-E3/73 is a unidirectional diode, meaning it can only flow current in one direction. It is available in six industry-standard case sizes from DO-235AA (SOT-93) to DO-214AA (SMA). It is UL certified for negative current application.

It has an excellent surge capability rating of 900W (typical) at 5A and 18V, which makes it suitable for a wide variety of applications. Its high power handling capability makes it ideal for industrial, electrical, and automotive power control devices. It is used in applications such as motor drives, inverters, control relays, AC switches, semiconductor contactors, and power sources.

The SA17A-E3/73 works by diverting transient voltages away from sensitive electrical components, preventing them from becoming damaged by the excessive current level. The diode utilizes a voltage clamping effect in which the diode\'s forward voltage is limited, allowing it to absorb and direct excess energy away from the circuit.

This works by forcing the current across the diode to reach a preset voltage level and preventing it from exceeding the specified level. The TVS diode is also capable of dissipating energy when an overvoltage occurs, thus protecting the sensitive components from further electrical damage.

In summary, the SA17A-E3/73 is a high-power transient voltage suppressor (TVS) diode that provides protection against electrostatic discharge (ESD). It has a wide operating temperature range from -40°C to 175°C and is RoHS compliant. The diode utilizes a voltage clamping effect which limits the forward voltage, allowing it to absorb and direct excess energy away from the circuit. Its power handling capability makes it ideal for industrial, electrical, and automotive power control devices.