GSOT04C-HG3-18 Circuit Protection

TVS - Diodes

TVS (Transient Voltage Suppressor) Diodes are devices which are able to protect electrical circuits from transient overvoltage. They are commonly used in quite a wide range of applications, such as: industrial, automotive, computer and telecommunications equipment. This article focuses on GSOT04C-HG3-18 diode and its application field and working principle.

Application Field

The GSOT04C-HG3-18 is a silicon bidirectional diode, which is designed for transient overvoltage protection. This diode is suitable for application up to 750V. Its peak pulse power (at 10/1000 us) is up to 65kW. The voltage clamping happens at 12V, while the leakage current is below 0.2mA. The surge capability of this diode is 4000A, while its maximum surge energy is 1800µJ.

Basically, the GSOT04C-HG3-18 can be applied in a wide range of devices and electronics, such as: servers, power supplies, telecom equipment, printer logic boards, automotive and industrial electronics, and so forth.

Working Principle

The functioning of the GSOT04C-HG3-18 diode is based upon the principle of devices Zener impedance. Basically, it relies on an abrupt reduction in the Zener impedance\'s value, leading to a sudden conductance between the cathode and the anode. This solution is suitable for managing transient overvoltage, as it is able to withstand peak power.

The core of the GSOT04C-HG3-18\'s functioning is still the Zener voltage, which serves as a reference for a certain regions. In other words, when the reference voltage is exceeded, then the Zener impedance drastically decreases and the diode effectively clamps the voltage. This prevents any overvoltage from entering the circuit, ensuring its integrity.

Conclusion

In conclusion, the GSOT04C-HG3-18 diode is a silicon bidirectional TVS diode, which is suitable for a wide range of applications, up to 750V. It is specifically tailored for satisfying overvoltage protection needs for a wide range of devices, as its peak power rating is up to 65kW. Finally, its functioning principle relies on the Zener impedance, which triggers a sudden conductance when the reference voltage is exceeded.