1.5SMC20AHR7G

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Transient Voltage Suppressors (TVS) are electronic components designed to protect electrical and electronic equipment from destructive over-voltage transients, also known as electrical spikes. These devices have a high peak power dissipation capability and a fast response time compared to other protection devices, such as gas discharge tubes and metal oxide varistors. The 1.5SMC20AHR7G is a Unidirectional TVS Diode, which provides transient overvoltage protection for I/O ports and data and signal lines in a variety of automotive, industrial and communication applications.

Application Field

The 1.5SMC20AHR7G is a Unidirectional TVS Diode that was designed for automotive, industrial and communications applications. It provides reliable protection for I/O ports, data and signal lines from transient overvoltages. It is designed to protect these lines from damage due to electrostatic discharge, electromagnetic interference, inductive switching loads and other causes of ground current.

The 1.5SMC20AHR7G is also suitable for use in 5V circuits, making it an ideal choice for data storage and communications circuits, as well as industrial automation and motor control systems. It is suitable for use in a variety of applications from consumer electronics to automotive systems. It can also be used for power supply and battery protection.

Working Principle

Unidirectional TVS diodes, such as the 1.5SMC20AHR7G, are designed to protect circuits from transient overvoltage by providing a low impedance path to ground when voltage exceeds the device\'s threshold voltage. The device has a rated avalanche breakdown voltage of 350V, meaning the 1.5SMC20AHR7G will turns on when the voltage exceeds this limit.

Once the voltage exceeds the threshold of the 1.5SMC20AHR7G, the device begins to conduct. This causes a large current to flow through the device, which is limited by the low series resistance of the diode. This current creates a ground path through the diode, which limits the overvoltage on the protected circuit.

Once the overvoltage has been removed, the TVS diode will turn off and the protected circuit will return to its normal operating voltage. The 1.5SMC20AHR7G is designed for high power and fast response time, making it the ideal choice for applications requiring reliable overvoltage protection.

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