SZESD7451N2T5G Circuit Protection

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TVS - Diodes

A transient voltage suppressor (TVS) diode is a crucial component used to protect electronic devices, including various forms of communication and control equipment from being damaged by electrical transients, surges, spikes, and other high-energy phenomena.

TVS diodes are most often found in the form of single-piece, clamping devices that are used to limit the voltage applied to a wide variety of semiconductor components and other valuable electronic circuits. They are also used in power supplies to keep transient over-voltages from affecting the operation of the circuit.

The SZESD7451N2T5G is one such TVS diode, manufactured by Chiniot Electronics. It is a unidirectional uni-polar TVS device that is designed to protect electronic devices from electrical transients caused by lightning, inductive loads, or other high-energy sources.

Application Field

The SZESD7451N2T5G TVS diode is primarily designed to protect various digital and analog signal lines as well as other sensitive components from voltage surges. Most of its application fields are AC and DC power distribution, telecommunications, industrial and domestic appliances, and automotive electronics.

Working Principle

The SZESD7451N2T5G is a unidirectional uni-polar TVS diode with an integral clamping diode. When an over-voltage or transient event occurs on the signal line, the TVS diode\'s clamping diode is activated and the damaging transient is limited by the device\'s clamping voltage. The device is capable of withstanding high-energy pulses up to 8.3 kilovolts and a peak pulse current of either 200 or 500 amperes, depending on the specific model.

The device also has a reverse standoff voltage that can be adjusted according to the specific requirements of the application. This feature enables the device to provide protection even when exposed to high-energy power sources. The device is also capable of limiting transient over-voltages up to 6.5 volts.

The SZESD7451N2T5G is designed to provide robust and reliable protection against ESD (electrostatic discharge) and surge events. It is capable of withstanding an ambient temperature range between -40 and +85 degrees Celsius. The device isalso RoHS compliant and features excellent insertion loss characteristics.

Conclusion

TVS diodes, such as the SZESD7451N2T5G, are essential components used to protect various electronic devices from damaging electrical transients and surges. This particular device is primarily designed for AC and DC power distribution, telecommunications, industrial and domestic appliances, and automotive electronics. It offers unidirectional uni-polar protection with adjustable reverse base-end voltage, a peak pulse current rating of either 200 or 500 amperes, and an impressive ambient temperature range of -40 to +85 degrees Celsius.

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