3KP8.5C-B

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Transient Voltage Suppressor (TVS) diodes are multi-layer, high-energy semiconductor devices specifically designed to protect sensitive electronic circuits from devastating voltage transients and surges. 3KP8.5C-B represents the discreet protection protection application, specifically to protect equipment against 48V, 250W surge or ESD event (electrostatic discharge).

Components of 3KP8.5C-B

The 3KP8.5C-B is composed of two main components, which are a metal-oxide varistor (MOV) and a Bidirectional Thyristor (Bidirectional thyristor). The MOV provides the clamping protection which limits the voltage to a safe level. The Bidirectional Thyristor helps to discharge the current and prevent the bypass of the MOV.

Working Principle

3KP8.5C-B is designed to protect sensitive electronic components from sudden voltage surges or Electro-Static Discharge (ESD) events. The device works by acting as a shunt device, which clamps the voltage to a peak voltage of 8.5V. When the voltage rises above the peak 8.5V level, the MOV and the Bidirectional Thyristor will quickly act together to limit the voltage to 8.5V. The MOV and Bidirectional Thyristor will then begin to discharge the lightning surge current, before resetting the system.

Application field

Typical application field for the 3KP8.5C-B would include LAN, point-of-sale (POS) devices, video/audio devices, and other equipment having 48V power supplies. The 3KP8.5C-B device can also be used for other high-definition devices such as HDTV, high-technology audio equipment, and other equipment with 48V power sources.

Due to its ability to provide excellent protection against lightning and ESD transients, 3KP8.5C-B is widely used in the industrial field. In addition to the lighting and surge protection, the multi-layering construction of this device enables it to provide noise suppression. This feature makes it suitable for use in high-interference digital equipment, test and measurement devices, automotive electronics, and military equipment.

Conclusion

The 3KP8.5C-B offers a great discrete protection application for protecting your electronic equipment from voltage transients and surges. This TVS diode device is composed of two components, MOV and a bidirectional thyristor which work together to provide excellent protection against high voltages and ESD events. The 3KP8.5C-B device has a wide application field, from audio and video equipment to industrial electronic equipment. It can also provide excellent surge and lightning protection and excellent noise suppression for high-interference digital equipments.

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