SA45CA-E3/54 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):	6.9A
Series:	TransZorb®
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: SA45CA-E3/54 Application Field and Working Principle

TVS (Transient Voltage Suppression) diodes are used to placed parallel with power optocouplers and other power components which may exposed to electrical overstress. It achieves protection against lightning and other short electrical transients. The SA45CA-E3/54 is a popular TVS diode series produced by Pacific Power Source that provides excellent surge and transient protection. This article will discuss the application field and working principle of the SA45CA-E3/54.

Application Field

The SA45CA-E3/54 TVS diode series offers excellent transient protection and surge performance, making it suitable for a variety of applications. It is widely used in the automotive, industrial, marine and aerospace industries. Its small size makes it ideal for use in all types of electronic PCBs, circuits and components. In the automotive industry, the SA45CA-E3/54 is frequently used to protect circuits and components from electrical interference. It is especially useful for protecting alternators, starters, spark plugs, wiring harnesses and other electronic components from voltage surges and transients. In the industrial sector, it is often used to protect motors, inverters and power supplies from voltage transients and surges. It is also suitable for use in the aerospace and marine industry, where protection from voltage surges is critical.

Working Principle

The SA45CA-E3/54 is a unidirectional TVS diode series that uses Zener diode technology. It is designed to sense large surges and transients in the power supply and convert them into non-destructive voltages. When an electrical overstress (EOS) is detected, the diode immediately reduces its forward and reverse current, protecting the power components from further damage.The SA45CA-E3/54 is designed to be placed in parallel with the power optocouplers and other power components, providing them with a layer of protection. The diode will immediately respond to any EOS and turn the current off, protecting the power components from being damaged by the surge. In addition to providing excellent protection, the series is also low on RFI, EMI and RMI.

Conclusion

The SA45CA-E3/54 is an excellent choice for protecting power components and circuits from electrical overstress. It is especially well-suited for use in the automotive, industrial, marine and aerospace industries. Its Zener diode technology allows it to sense large spikes in the power supply and convert them into non-destructive voltages, protecting the components from further damage. It is also low on RFI, EMI and RMI, providing reliable protection.

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