SMBJ7.5CA

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TVS (Transient Voltage Suppressors) diodes are becoming increasingly important components for the protection of electric and electronic components in industrial applications. SMBJ7.5CA is a fast-response unidirectional TVS diode that can help protect low-voltage systems from high-voltage transient surges. The application field and working principle of SMBJ7.5CA is discussed in this article.

Application Field of SMBJ7.5CA

The SMBJ7.5CA diode is designed for full wave rectification applications in systems that have a working voltage between 6.5V and 75V, such as automotive electronics, battery-powered systems, avionics, and medical and industrial equipment. It is also designed for protection against electrostatic discharge (ESD). The SMBJ7.5CA also provides surge protection and overcurrent protection in low-voltage electronic systems.

Working Principle of SMBJ7.5CA

SMBJ7.5CA diodes are designed with a fast rate of response to transient electrical signals that are beyond the normal operating voltage of the protected circuit. As the voltage across the protected circuit rises above the breakdown voltage of the diode, the diode quickly conducts the surge current. This results in a rapid drop in voltage at the protected nodes, protecting them from high-voltage transient surges. When the surge is over, the diode quickly returns to its open-circuit state, resuming the normal operation of the protected circuit.

Features of SMBJ7.5CA

The SMBJ7.5CA diode provides a fast response time of only 8 ns. It also has a low forward voltage drop of only 0.5V and reverse leakage current at 8.3mA at 25°C. The diode is designed with an extremely low reverse leakage current of 0.1µA. It has an operating temperature range from -65°C to +150°C and a maximum peak pulse power dissipation of 1000 W. The SMBJ7.5CA is available in a small SMA package with a height of 1.2 mm.

Conclusion

The SMBJ7.5CA TVS diode is a fast-response, unidirectional diode that is designed for protection against transient voltage surges in automotive, battery-powered, avionic, medical, and industrial electronics. This diode has a fast response time, low forward voltage drop, and low reverse leakage current, making it an ideal choice for protection against high-voltage transient surges.

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