SA45A R0G

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

TVS (Transient Voltage Suppressor) diodes are a key part of any electrical circuit. They provide protection to electrical components by limiting the voltage that can flow through them. The SA45A R0G is a type of TVS diode specifically designed to protect sensitive circuits from damaging electrical surges. This article will provide an overview of the SA45A R0G, including its application fields and working principle.

Applications

The SA45A R0G is a unidirectional TVS diode designed to reduce the effects of transient overvoltage events, such as inductive switching transients, lightning strikes, and electrostatic discharge (ESD). It has a wide operating voltage range of 4.5 to 32 volts and can protect with a stand-off voltage of 5.5 volts. The device is also rated for breakdown and leakage currents of 10000 amps and 12.5 milliamps, respectively. This makes the SA45A R0G suitable for use in a variety of applications, including automotive, industrial, and consumer electronics.

In automotive applications, the SA45A R0G can be used to protect against electrical spikes caused by inductive load switching, such as in starter motor systems. It can also help protect against electrostatic discharge (ESD) impulses generated by spark plugs. In industrial applications, the device can be used to protect against line-to-ground surges and other transient events. In consumer electronics, the SA45A R0G can be used to guard against damage from- electrostatic discharge (ESD) generated by everyday items such as keyboards, mice, and other peripheral devices.

Working Principle

The SA45A R0G is a voltage-dependant resistive (VDR) diode, meaning it only begins to conduct when the voltage across it exceeds a certain threshold, known as the breakdown voltage. At this threshold voltage, the diode will begin to conduct current and the voltage across the device will drop down to its clamping voltage until the voltage returns to normal. This process, known as clamping, limits the amount of current that can flow through the device, thus protecting the rest of the circuit from damage.

When the voltage across the SA45A R0G exceeds the threshold breakdown voltage, the device begins to conduct. As the current increases, the voltage across the diode decreases until it reaches its saturation voltage. At this point, the diode can no longer conduct any more current and the voltage across the diode will remain at the saturation voltage. This prevents the device from becoming overloaded and keeps the rest of the circuit safe.

Conclusion

The SA45A R0G is a popular TVS diode that is suitable for use in a variety of applications. It is designed to protect against transient overvoltage events, such as inductive switching transients, lightning strikes, and electrostatic discharge (ESD). The device is rated for a breakdown and leakage current of 10000 amps and 12.5 milliamps, respectively. It is also capable of limiting the voltage across it to a safe saturation voltage when the voltage across the device exceeds its threshold breakdown voltage.

The specific data is subject to PDF, and the above content is for reference