SMBJ90AHM4G

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TVS (Transient Voltage Suppressor) diodes are used to protect electrical and electronic circuits from transient voltage spikes. The SMBJ90AHM4G is a common type of TVS diode, used to provide effective protection to circuits while maintaining low leakage during normal operation. In this article, we\'ll look at the application field and working principle of the SMBJ90AHM4G.

Application Field:

The SMBJ90AHM4G TVS diode is a unidirectional device specifically designed to protect electronic systems from voltage spikes caused by transients. It offers effective protection against electrostatic discharges, typically in the range of 8kV. The SMBJ90AHM4G is typically used for protection of sensitive devices in automotive applications, telecommunications equipment, and other consumer electronics.

Working Principle:

The SMBJ90AHM4G is constructed using a silicon material with a high voltage breakdown threshold, which is fused with anode and cathode metallization. The anode of the diode is connected to the power supply, while the cathode is connected to the sensitive device. When a transient voltage spike occurs, the voltage across the diode will rise to its breakdown voltage. This will trigger an avalanche effect, leading to an increase in the current that the diode can handle. This surge of current will protect the sensitive device from damage caused by the voltage spike. At the same time, the SMBJ90AHM4G maintains a low leakage current during normal operation, to ensure reliable operation of the device.

Conclusion:

The SMBJ90AHM4G is a unidirectional TVS diode that provides effective protection against transient voltage spikes while maintaining low leakage during normal operation. It is suitable for use in automotive applications, telecommunications equipment, and other consumer electronics, and is available in a variety of package sizes. The SMBJ90AHM4G is an effective solution for protecting sensitive electronic devices from transient voltage spikes.

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