SA17CHE3/73

Series:	Automotive, AEC-Q101, TransZorb®
Packaging:	Tape & Box (TB)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Type:	Zener
Bidirectional Channels:	1
Voltage - Reverse Standoff (Typ):	17V
Voltage - Breakdown (Min):	18.9V
Voltage - Clamping (Max) @ Ipp:	30.5V
Current - Peak Pulse (10/1000µs):	16.4A
Power - Peak Pulse:	500W
Power Line Protection:	No
Applications:	Automotive
Capacitance @ Frequency:	--
Operating Temperature:	-55°C ~ 175°C (TJ)
Mounting Type:	Through Hole
Package / Case:	DO-204AC, DO-15, Axial
Supplier Device Package:	DO-204AC (DO-15)

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TVS - Diodes: SA17CHE3/73 Application Field and Working Principle

TVS - Diodes, or Transient Voltage Suppression Diodes, are a type of semiconductor that are specifically designed to protect against electrical spikes. They are typically found in either bidirectional or unidirectional configurations, and can be single- or dual-terminal depending on their use and design. The SA17CHE3/73, a type of TVS-Diode, can be used in a variety of applications and can provide an effective solution to surge protection.The SA17CHE3/73 has a voltage rating of 400 volts and can be used in both unidirectional and bidirectional applications. It is specifically designed for use in low-voltage, status-sensitive AC applications, with an array of possible applications including computers, PCBs, ICs, and segments of LCD displays. It is also suitable for AC line protection, as such providing an effective solution to reduce risk of damage from electrical surges. The working principle of the SA17CHE3/73 TVS-Diode is fairly simple. When surge currents occur, likely caused by switching electronic components or events such as lightning, the SA17CHE3/73 will be triggered and then enter into a conducting state. This will cause most of the surge current to be conducted away, until the circuit is again in its normal state. Because surge currents are more likely to cause damage than normal operating conditions, proper protection is necessary in order to prevent any potential damage that could occur. In order to provide effective surge protection, the SA17CHE3/73 must be installed correctly. The most important aspect of this installation is that the TVS-Diode is placed with the correct orientation. The cathode and anode of the device must be properly connected and mounted in order for the diodes to operate as intended. It is also important to ensure that the device is connected to a suitable ground point, allowing any excess current to flow into the ground, and not back through the circuit.The SA17CHE3/73 TVS-Diode is a type of surge protectors that can provide effective protection against transient voltage surges. Its 400-volt rating and its ability to work in both unidirectional and bidirectional applications makes it suitable for use in a variety of AC line protection applications, or anywhere protection from electrical spikes is required. In order for the device to provide the most effective protection, the correct installation and orientation of the diode is essential, in order for it to be able to conduct away any excess current.

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