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TVS-Diodes

A Transient Voltage Suppressor (TVS) diode, also known as a clamp diode, is a voltage-controlled device that can provide protection against voltage or current surges. It is a solid-state device with a built-in diode and zener diode configuration, intended to help protect vulnerable electronic circuits against damage from transient over-voltage sources. It is commonly used in a wide variety of electronic circuits, from audio and video equipment to automotive power systems to military hardware.

SMB10J12AHR5G Application Field

The SMB10J12AHR5G is a high-voltage TVS diode designed for use in automotive, industrial, and aircraft applications.

This device is ideal for a wide range of automotive applications, including braking systems, inverters, accessories, and auxiliary loads. It is also suitable for applications in which high transients are expected thanks to its rugged construction and high voltage ratings. Additionally, the SMB10J12AHR5G is suitable for use in non-automotive industrial, commercial, and aircraft applications as well, such as lighting, power supplies, and motor control.

SMB10J12AHR5G Working Principle

The SMB10J12AHR5G TVS diode is a bidirectional, avalanche voltage-clamping device. It functions by responding to overvoltage transients with an avalanche voltage-clamping action, which helps protect sensitive components from voltage spikes, keeping them from failure due to excessive voltage.

In applications where the highest degree of protection is needed, the SMB10J12AHR5G can be connected between the source and load in a configuration known as the series mode. In this configuration, the TVS diode will conduct and dissipate the surge energy during the clamping process, helping protect the system from a variety of transient sources.

The SMB10J12AHR5G can also be configured in a parallel mode to protect the load side of the circuit. In this configuration, when an overvoltage transient occurs, the TVS diode will clamp the voltage level across the load, diverting the surge current away from the device.

The SMB10J12AHR5G is rated for operation in temperatures of -55°C to +150°C, making it well suited for automotive and other high-temperature applications.

Conclusion

The SMB10J12AHR5G TVS diode is a high voltage, bidirectional line of protection against transient overvoltage sources. It can be used in a variety of applications, from automotive to industrial and aircraft, and is designed to provide high levels of protection with its robust construction and high voltage ratings. The SMB10J12AHR5G can be connected in either series or parallel mode, allowing for the highest degree of protection possible in a wide range of scenarios.

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