P4SMA400A-E3/61

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TVS – Diodes

TVS (transient voltage suppressor) diodes are special devices designed for protecting sensitive circuits against voltage transients. The P4SMA400A-E3/61 is an ultra-low capacitance unidirectional TVS diode intended for protection against electrostatic discharge (ESD), integrated circuits, can withstanding two common ESD events according to the Human Body Model. This TVS diode can also be used for protecting against them from electrical overstress (EOS) and lightning induced surge currents.

Application Field

The P4SMA400A-E3/61 is suitable for applications in mobile devices, automotive electronics, industrial control, set top boxes, consumer electronics, and many other areas. It offers excellent ESD protection for applications with limited board area on a 1.0 mm pitch. Its ultra-low capacitance is especially suited for high speed data lines.

Working Principle

The P4SMA400A-E3/61’s working principle is based on Zener breakdown. It uses a Zener property, which is to protect the circuit against ESD and EOS. When the voltage across the diode exceeds the specified trigger voltage, the diode starts conducting. This conducts a current through the diode, thus reducing the voltage across the diode. This prevents the voltage transient from causing any damage to the circuit.

The P4SMA400A-E3/61 also features a reverse leakage current protection, allowing it to absorb greater voltage transients. This helps the TVS diode in protecting the circuit from ESD, EOS, and lightning induced surge currents. The diode also has an excellent clamping efficiency and an activation voltage as low as 4V.

The P4SMA400A-E3/61 has a low stand-off voltage of 6V, making it ideal for ESD protection in portable electronic devices. It also has a low capacitance rating of 0.5pF, making it suitable for high frequency, high noise environments. The P4SMA400A-E3/61 offers reliable protection for both mobile and stationary application.

TVS diodes such as the P4SMA400A-E3/61 offer an effective and cost-efficient solution for protecting sensitive circuits from damaging voltage transients. These devices provide excellent reliability and protection for a number of applications. With features such as ultra-low capacitance, reverse current protection, and low stand-off voltage, the P4SMA400A-E3/61 is an excellent choice for many applications.

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