20KPA80CA Circuit Protection

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TVS - Diodes are solid state devices or transil components found in electronic equipment. They are used to protect an electronic circuit from spikes in voltage or current. This is accomplished by the TVS-Diodes incorporating a nonlinear breakdown characteristic that allows them to quickly short out high voltage surge pulses without sustaining damage.

The electrical characteristics of the TVS Diode can be divided into two categories, standoff voltage and clamping voltage. The standoff voltage is the highest voltage that the diode can handle without allowing current to flow through it and therefore providing no protection. The clamping voltage, on the other hand, is the voltage at which the current starts to flow through the diode, and thus providing effective protection from high voltage surges.

The most common TVS-diode is the 20KPA80CA. This particular diode has a standoff voltage of 20KV, a maximum clamping voltage of 80V and a maximum peak surge current of 8A. It is also used as a replacement for Zener Diodes in many applications.

The typical application field for the 20KPA80CA TVS Diode is the protection of equipment on aircraft, trains, and automobiles. It\'s also used to protect computers, cell phones, electronic components, and other sensitive electrical and electronic devices from transient voltage spikes caused by lightning or electrostatic discharge. The 20KPA80CA can also be found in telecommunications and radio equipment, measuring devices and medical equipment. It is also used in ringing circuits to protect cabling and telephone networks.

Due to the high surge current capability, the 20KPA80CA TVS Diode is used largely in automotive-grade applications. In addition, this diode is included into the secondary protection for over voltage events

The working principle of the 20KPA80CA TVS Diode is simple. It works like a switch, turning on or off depending on the voltage level in the circuit. When the voltage across its terminals is within the specified range, the 20KPA80CA remains in the "off" state, allowing no current to flow. However, if the voltage increases beyond the specified limit, the diode switches to the "on" state and starts to conduct current.

When the 20KPA80CA is in the "on" state, it will conduct current until the voltage is returned to the specified limits. Once the voltage is returned to its normal level, the diode will turn off, protecting the circuit from any damage. This makes the 20KPA80CA a great protection element for circuit and equipment.

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