3KP85C-B

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TVS - Diodes are a kind of semiconductor device used for protective active clamping that ensures a high level of ESD protection. 3KP85C-B is a kind of TVS diodes which can protect sensitive components from high-speed transient voltage surges. The application field and working principle of 3KP85C-B are discussed here.

Application Field of 3KP85C-B

3KP85C-B is widely applied in different kinds of equipment, such as industrial computer, automotive electronics, communication equipment, machine control system and consumer electronic products. In particular, it is applicable for protecting against electromagnetic interference (EMI) generated by EFT, ESD, and surge pulses.

Working Principle of 3KP85C-B

3KP85C-B is a kind of transient voltage surge suppressor, working by clamping the transient surge and absorbing the energy. When transient voltage occurs, the current flowing through the device increases rapidly after the breakover voltage, entering the conduction state. And the current will be stayed in the breakdown region until the whole voltage transient is minimized. Then, it will be back to the blocking state.

The device is based on reverse avalanche breakdown designed with avalanche junction isolation, working in the high speed, lowimpedance conduction range to absorb the transient voltage. Moreover, it changes from a low impedance to high impedance in the reverse direction, preventing the spread of transients. As a result, more reliable ESD protection can be provided.

Conclusion

3KP85C-B is a kind of protective TVS diode used for clamping the transient voltage. It is widely applied in different fields, and works via breakdown the surge current to provide more reliable ESD protection.

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