P4SMA39CAHE3/61 Circuit Protection

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TVS-diodes are an important component in the modern electronics industry. The P4SMA39CAHE3/61 is a Transient Voltage Suppressor (TVS) diode designed to protect electronic equipment from electrical overstress, indicate power and protect circuit components from electrical fast transients.

The P4SMA39CAHE3/61 is a unidirectional, lower capacitance TVS diode pair designed to provide high-speed clamping protection against high-energy transients. It also offers a wide operating temperature range, high surge current capacity, low junction capacitance, and very low leakage current. This diode is built in a 4-pin SMA Dovetail package that is suitable for both surface mount and through-hole applications.

The P4SMA39CAHE3/61 is suitable for high-speed communications, high-speed power Bus, Ethernet, FireWire and other signal lines where fast clamping protection from electrical fast transients or ESD (electrostatic discharge) is required. It can also be used to protect against transients in high-speed telecommunications, industrial, and automotive applications. It can also be used in computer tablets, smartphones, and other consumer electronics.

The working principle of the P4SMA39CAHE3/61 is based on the fact that when an electrical surge occurs, the TVS diode will instantaneously conduct high current, limiting the voltage that can be applied to the device being protected. The P4SMA39CAHE3/61 will conduct current up to its peak current rating before it begins to conduct less current, allowing it to absorb the energy of the transient. This prevents the surge from damaging other components in the system.

The P4SMA39CAHE3/61 is also designed with an overvoltage protection circuit. The overvoltage protection circuit is designed to protect the protected circuit from sustained overvoltage events. This circuit triggers the diode to begin conducting current when the voltage exceeds the trip point, limiting the voltage that can be applied to the protected circuit and preventing it from experiencing damaging overvoltage events.

In conclusion, the P4SMA39CAHE3/61 is a high-speed, low capacitance TVS diode pair designed to protect electronic equipment from electrical overstress, indicate power and protect circuit components from electrical fast transients. It is suitable for high-speed communications, high-speed power buses, Ethernet, FireWire and other signal lines, and is also suitable for protection against transients in high-speed telecommunications, industrial, and automotive applications. The working principle of the P4SMA39CAHE3/61 is based on high current conduction with high surge current capacity and overvoltage protection circuit.

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