Voltage - Clamping (Max) @ Ipp:	77.4V
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):	6.5A
Series:	TransZorb®
Voltage - Breakdown (Min):	53.3V
Voltage - Reverse Standoff (Typ):	48V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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TVS - Diodes: SA48A-E3/73 application field and working principle

TVS (transient voltage suppressor) diodes are electronic components commonly used to protect other components, such as semiconductors, from transient surges, which could otherwise cause damage or malfunction. A type of diode, TVS diodes are also known as avalanche rectifiers, suppressors, diverters, clamps, and protectors, among other names.The SA48A-E3/73 TVS diode is a surface mount diode developed by Diodes Incorporated, and is available in a wide range of pin configurations. This diode is designed to address the need for superior protection solutions for surface-mounted components, and is suitable for automotive applications.

Application of the SA48A-E3/73

The SA48A-E3/73 is commonly used in automotive applications, such as powertrain control modules (PCMs), body electronics, onboard diagnostics, and telematics. It is also employed in consumer electronics, such as PDAs, mobile phones, laptop computers, and other portable devices that require surge protection from transient voltage.

Working Principle of the SA48A-E3/73

When a transient voltage surge occurs, the SA48A-E3/73 will begin to conduct electric current in order to divert the surge away from the protected circuit or component. As with any diode, the SA48A-E3/73 is made up of a anode and a cathode. During a surge, the cathode will become positive and electrons will flow from the anode to the cathode in order to reduce the spike of voltage. The diode is designed to transfer the surge to a sensitive ground path, either to a dedicated ground plane or chassis ground.Once the spike of voltage has been diverted away, the diode will return to its forward bias mode, where it will no longer be conducting current. In this mode, the diode will behave as an open circuit, with minimal voltage drop across the device.

Advantages of the SA48A-E3/73

The SA48A-E3/73 has a number of advantages over other types of TVS diodes. Firstly, it is designed to provide superior protection against spikes and surges in automotive and consumer electronics applications, and can provide up to 3A of peak pulse power. It also features a low clamping voltage for additional protection, and a low leakage current that minimizes power loss and improves reliability.Additionally, the SA48A-E3/73 is a surface mount diode, making it suitable for use in high-density boards and systems. This makes it a suitable choice for automotive and consumer electronics applications, as it can be incorporated into compact systems.

Conclusion

The SA48A-E3/73 is an important component in a wide range of electronics applications, including automotive and consumer electronics. It provides superior protection against transient voltage surges, while also offering minimal power loss and improved reliability. Its surface mount properties make it suitable for high-density systems, and it is widely used in automotive and consumer electronics applications.

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