SMPC78AN-M3/H Circuit Protection

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SMP78AN-M3/H is a type of Transient Voltage Suppressors (TVS) that are specifically designed to protect electronic circuits from transients operating up to several thousand volts. They feature a low capacitance and low dynamic resistance, making them suitable for high frequency protection.

The SMP78AN-M3/H is a bi-directional unidirectional diode for use in ESD applications. It can help protect semiconductor devices from inverters and high-speed CMOS drivers. This diode can protect against electrostatic discharge (ESD), electrical fast transients (EFT), lightning, surge, and other transient events. The device has a variety of different breakdown voltages allowing for improved protection and performance. The SMP78AN-M3/H also comes with an extended cathode capacitance rating, resulting in lower junction capacitance and extension of the cathode-to-anode breakdown voltage.

The working principle of the SMP78AN-M3/H is based on a highly doped external PN junction. When an ac wave of very short duration and of significant voltage is superimposed on the dc voltage, this PN junction conducts, thus forming two separate conducting paths in the circuit. This causes the diode to be unable to clamp the voltage as the two paths try to charge each other. This is the basic principle of a TVS diode and is what makes them so effective for transient protection.

SMP78AN-M3/H devices are widely used in fields such as automotive, appliance, computing, consumer electronics, data communications, industrial, medical, and military/aerospace. They are particularly useful for protecting sensitive electronic equipment against electrostatic discharge, providing a reliable and cost-effective solution. In automotive applications, the SMP78AN-M3/H can help protect against high-energy ESD events, as well as all electrical transients. They can also be used for in-vehicle audio/video systems, as well as for protecting components from transient spikes in automotive environments.

In consumer electronics, the SMP78AN-M3/H can be used for protecting components from ESD events. In data communications, the transient protection provided by the diode can be used to protect against EMI/RFI, as well as other transients from external interference. In medical and military/aerospace systems, performances in a variety of different operating environments are essential, so the superior protection provided by the SMP78AN-M3/H makes it an ideal choice.

To summarize, the SMP78AN-M3/H is a bi-directional unidirectional diode designed for use in ESD applications. It offers superior transient protection, with a variety of different breakdown voltages and low junction capacitance. The SMP78AN-M3/H is widely used in automotive, appliance, computing, consumer electronics, data communications, industrial, medical, and military/aerospace applications. It is an excellent choice for providing reliable and cost-effective transient protection.

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