V22ZS05P

TVS – Varistors, MOVs

A V22ZS05P is a transil protection diode (TVS) in a SOD-523 surface-mount package that protects high speed circuits from overvoltage transients and allow for smaller system designs. It is a radial leaded combination of diodes for protecting circuits against the combined effects of inductive transients and electrostatic discharge (ESD). TVS diodes, Varistors, and Metal Oxide Varistors (MOVs) are all components that serve a similar purpose, namely surge protection, but they differ in certain aspects.

V22ZS05P Application Field

The V22ZS05P is most commonly used in USB, Ethernet, IEEE1394, and ESD protection and power line protection applications. It is also used in automotive applications such as OBD2, OTP, and Keyless entry systems. The V22ZS05P offers good performance in protecting against high current transients and offers a high degree of protection in applications of data lines.

V22ZS05P Working Principle

The V22ZS05P utilizes the principle of TVS circuits where energy is dissipated by a device that will break down when a certain voltage is exceeded. It is composed of three parts, a positive zener diode, a negative zener diode, and a bledning diode, connected in series, and surrounded by a protection component. The combination of these three individual elements allows the V22ZS05P to rapidly clamp the voltage during a surge, providing surge protection during these conditions. When the voltage has been clamped, the excess energy will be diverted through the two zener diodes, providing the necessary thermal protection.

Conclusion

The V22ZS05P offers superior performance in surge protection, especially in terms of data line protection. It is especially suitable for applications such as Ethernet, USB, IEEE1394, OBD2 and OTP. This device offers rapid clamping of voltage during surges and offers thermal protection by diverting the excess energy to two zener diodes.