V33ZC1PX2855

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V33ZC1PX2855 Application Field and Working Principle

The V33ZC1PX2855 is a voltage-dependent suppression device that is typically used to protect telecoms equipment, computer systems, and audio-visual devices from potentially damaging over-voltage events. It is particularly suitable for providing protection against line transients such as ring wave form and lightning surges.

This device is a combination of a metal oxide varistor (MOV) and a silicon avalanche diode (SAD). The MOV is used to absorb high-energy transients, while the diode is used to provide fast avalanche breakdown of non-line-connected transient voltages.

The V33ZC1PX2855 application range is from 0 to 28 V (DC or AC), with a breakdown voltage of 28 V and a maximum surge current of 500 A (8/20 µs).

Working Principle of V33ZC1PX2855

The V33ZC1PX2855 works by sensing the voltage on its two internal pins. When the voltage on the pins exceeds the breakdown voltage, the varistor is triggered and begins to conduct. This results in a voltage drop across the device and a corresponding reduction in the current.

Once triggered, the V33ZC1PX2855 will remain in the conduction state until the voltage across its pins drops below the breakdown voltage. This allows the device to absorb any transient over-voltages and prevent them from reaching the device it is protecting.

The V33ZC1PX2855 is an excellent choice for protecting devices from voltage transients due to its fast response time, low power consumption, and long life. The device is also robust and reliable, making it suitable for installations in harsh environments.

Conclusion

The V33ZC1PX2855 is a metal oxide varistor (MOV) with a silicon avalanche diode (SAD), specifically designed to provide protection against line transients such as ring wave form and lightning surges. Its application range is from 0 to 28 V (DC or AC), with a breakdown voltage of 28 V and a maximum surge current of 500 A (8/20 µs). This device is robust and reliable enough for long-term use in harsh environments, and its fast response time makes it an ideal choice for protecting electronic equipment from potentially damaging over-voltage events.

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