SA18A R0G

Transient Voltage Suppressor (TVS) Diodes are semiconductor protection devices which are designed to protect sensitive electronics from transients induced by overvoltages caused by a variety of sources including lightning and switching events. These devices act as an electronic “clamp”, limiting the transient voltage of the power rail to a safe level, internally dissipating the stored energy through a controlled avalanche breakdown of their internal junction. The SA18A R0G is a general-purpose transient voltage suppressor diode designed for applications requiring a bipolar construction.

Working Principle of the SA18A R0G

The SA18A R0G is designed to protect electrical and electronic equipment from hazardous over-voltage transients. In normal operation, the device acts as an open circuit, allowing the high current of the power supply to flow safely without disruption. When a transient exceeds the breakdown voltage rating of the device, the internal junction within the device will break down in a controlled manner, limiting the voltage seen at the output and controlling the release of stored energy. The avalanche breakdown of the junction allows for the device to clamp the voltage to a safe level.

Features and Benefits

The SA18A R0G is a low cost solution for transient voltage protection, and offers a number of features and advantages over competitive devices. First, the device is encapsulated in an epoxy shell for increased durability and shock resistance. Additionally, the SA18A R0G clamping voltage has a wide operating temperature range of -55°C to +125°C and is available in both SMD and leaded packaging styles, making it suitable for a range of applications. The device also provides an ideal balance between clamping voltage and breakdown voltage.

Application

The SA18A R0G is a widely used device for a range of applications. Its low clamping voltage and wide operating temperature range make it well suited for use in automotive, industrial, and consumer applications. The device is also commonly used in avionics, telecommunications systems, computer peripherals, medical electronics, and power converters.

Conclusion

The SA18A R0G is a robust and reliable protection device designed for a variety of applications. The device offers superior performance over competitive devices, featuring a wide operating temperature range and low clamping voltage. For these reasons, the device is widely used in automotive, industrial, consumer, avionics, telecommunications, medical electronics, and power converter applications.