SA45CA R0G Circuit Protection

Voltage - Clamping (Max) @ Ipp:	72.7V
Supplier Device Package:	DO-204AC (DO-15)
Package / Case:	DO-204AC, DO-15, Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	500W
Current - Peak Pulse (10/1000µs):	7.2A
Series:	SA
Voltage - Breakdown (Min):	50V
Voltage - Reverse Standoff (Typ):	45V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS - Diodes

The SA45CA R0G is an example of a Transient Voltage Suppressor (TVS) diode, which is a type of device designed to provide protection against transient overvoltage surges. TVS diodes offer the advantage of having a highly robust design that can endure a large number of transient events without needing replacement. In this article we will take a look at the application field for the SA45CA R0G and understand the working principle behind it.

Application Field

The SA45CA R0G can be used in a variety of applications across multiple industries. Commonly used for suppressing overvoltage transients, the SA45CA R0G is particularly useful for protecting circuits from potential damage caused by surges and spikes in voltage. It can protect both AC and DC circuits, thanks to its balanced symmetrical construction. The SA45CA R0G is a great option for providing surge protection in sensitive electronics, such as medical and telecommunications equipment. It is also a popular choice in the automotive industry due to its ability to withstand bursts of high voltage energy without causing damage.

Working Principle

The working principle of TVS diodes such as the SA45CA R0G is quite simple. When normal operating voltage is below the breakdown voltage of the diode, the diode remains in its OFF state and does not conduct. When the voltage rises beyond the breakdown voltage, the diode enters its ON state and conducts the surge away from the protected circuit. In order to handle transients efficiently, TVS diodes have a maximum clamping voltage which is identical for both AC and DC surges. The breakdown voltage of the SA45CA R0G is 5.2V, and the maximum clamping voltage is 25V. This clamping voltage is what protects the circuit from damage due to overvoltage transients.

Conclusion

The SA45CA R0G is an example of a TVS diode, a device designed to provide effective protection against transient voltage surges. It is used in a wide range of applications from automotive to telecommunications and medical, and its robust design allows it to withstand a large number of transient events without having to be replaced. The working principle behind the device is simple: when normal operating voltage is below the breakdown voltage, the diode remains in its OFF state and does not conduct; when the voltage rises beyond the breakdown voltage, the diode conducts the surge away from the protected circuit. The SA45CA R0G is an effective choice for providing protection in circuits against potential damage caused by voltage surges.

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