TPC11CAHM3/H Circuit Protection

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TVS (Transient Voltage Suppressor) diodes are used to protect a circuit or device from overvoltage or transient voltage events, such as EFT (electrical fast transient) and ESD (electrostatic discharge) pulses. The TPC11CAHM3/H is a TVS diode designed for ESD protection and configured in dual-line configuration. It is a unidirectional diode series with reverse breakdown voltage from 11 to 24V. It also features Maximum Reverse Leakage current of 1 uA, capacitance of 2.4 pF and maximum ESD firing voltage of 400V.

The TPC11CAHM3/H is part of the unidirectional (low-signal) TVS diode family. It is a combination of two semiconductor junctions connected in series and is used to suppress overvoltage, overcurrent, and power surges of short duration. The TPC11CAHM3/H is mainly used to protect delicate solid-state circuitry against electrostatic discharge (ESD). It is designed to effectively clamp voltage and helps to reduce the possibility of ESD damage to a piece of equipment.

The working principle of the TPC11CAHM3/H TVS diode is fairly straightforward. It is designed to detect transient voltage events and to rapidly discharge them safely to ground. When a transient voltage spike occurs, the diode conducts and limits the voltage spike, preventing it from damaging any delicate electrical components in the circuit. It works by using two diodes connected in series that are connected between the power source and ground. The diodes have different voltages, meaning that the one with the lower voltage will begin to conduct when the same voltage is exceeded on the power line. When the voltage exceeds the higher rated voltage of the second diode, that diode will conduct followed by the forward biased diode. This creates a “clamping” effect and diverts the transient voltage away from the protected circuit, providing protection.

The TPC11CAHM3/H is widely used in a variety of applications, including consumer electronics, automotive, medical, industrial and military electronics. It is most commonly used to protect audio/video equipment such as DVD players and LCDs, as well as telephone systems and computers. As it is designed for ESD protection, it is also used in environments with high ESD levels, such as in clean room and hospital settings.

The TPC11CAHM3/H is an effective, low-cost TVS diode that is used to protect circuits and devices from overvoltage or transient voltage events. It is designed to quickly detect and dissipate any excess voltage to ground, preventing any damage to the protected device. The momentary clamping effect and large operating range of the diode make it an ideal choice for surge and ESD protection in industrial, consumer, automotive, medical and military applications.

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