SA110C

TVS diodes are important protective solutions in many industries, especially those requiring fast electrical over-voltage response. The SA110C is a surface mount TVS diode that is designed to help protect electronics from over-voltage damage. This article will look at the SA110C’s application field and working principle.

Application field

The SA110C is designed for a wide range of applications, including industrial, automotive, communications, and medical, among others. It is commonly used in power supplies, data lines, and other types of sensitive electronics where over-voltage protection is needed. It is most useful in applications that require ultra-fast turn-on times. The SA110C is capable of clamping and suppressing transients in less than one nanosecond.

Working Principle

The SA110C uses a patented design to provide the highest protection possible against electrostatic discharge (ESD) and electrical over-voltage transients. The device is an axial-leaded TVS diode constructed with a silicon substrate and anodized aluminum terminations. The diode’s structure helps it reduce leakage, provide electrostatic shielding, and reduce exposure to radiation. The device is composed of three active elements: an anode (A), cathode (K), and gate (G).

The SA110C’s working principle is based on the principle of a Zener diode. It works by utilizing the breakdown voltage of the diode, which is when the potential difference between its anode and cathode exceeds a certain threshold and current is allowed to flow. When this threshold is reached, a negative voltage is applied to the gate of the diode, causing the diode to conduct and clamp the voltage to its clamping voltage. This helps protect the electronics from over-voltage transients.

Conclusion

The SA110C is a surface mount TVS diode designed for a wide range of applications. It provides fast turn-on times, low leakage, electrostatic shielding, and radiation shielding, making it an ideal choice for applications where fast over-voltage protection is needed. The diode works based on the principle of a Zener diode, allowing current to flow when a certain threshold is reached.