SMPC43AN-M3/I Circuit Protection

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The SMPC43AN-M3/I is a high power surge protection device (SPD) commonly used in transient voltage surge suppression (TVS) applications. It is a three-terminal device with an anode and cathode as well as a common lead and is designed to clamp transient over-voltages to a safe level of voltage. The SPD provides superior protection against transient over-voltages, which can be caused by lightning strikes, power line disturbances, and even electrostatic discharge (ESD).

The SMPC43AN-M3/I features a low turn-on voltage of 4.1V and a maximum clamping voltage of 18V. This device is capable of handling peak power of up to 2700W, making it ideal for use in high power applications. The reverse leakage current is extremely low, which helps protect the device’s circuitry from damage.

The SMPC43AN-M3/I is available in a variety of packages, including surface mount and through-hole. It is also available in several power ratings, making it suitable for a variety of applications.

The working principle of the SMPC43AN-M3/I is based on the principle of controlled avalanche breakdown. When the input voltage exceeds a certain threshold, the semiconductor junction of the device starts to breakdown. This breakdown helps to reduce the voltage across the junction. The power dissipated by this avalanche breakdown is then used to dissipate the transient energy. The reverse leakage current of this device is also very low thanks to this breakdown process.

The SMPC43AN-M3/I is commonly used in TVS (transient voltage surge) applications. It is used to protect sensitive components from high-voltage surges caused by lightning, power line disturbances, and ESD. It is also used in power supplies, medical equipment, industrial controls, automotive systems, and other applications.

In summary, the SMPC43AN-M3/I is a high power surge protection device commonly used in TVS applications. Its low turn-on voltage and high maximum clamping voltage make it suitable for a variety of applications. The working principle of the device is based on the principle of controlled avalanche breakdown, which helps to dissipate transient energy and protect circuitry from damage.

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