P4SMA350AHE3_AIH Circuit Protection

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TVS Diodes (Transient Voltage Suppression Diodes) are components designed to protect electronic circuits from electrical overstress caused by electrostatic discharge (ESD) and transient voltage surges. They are commonly used in power supplies, surge protection circuits, motor control systems, aircraft, and even household appliances. The P4SMA350AHE3_AIH is a popular TVS Diode used in various applications.

The P4SMA350AHE3_AIH device is a bi-directional transient voltage suppressor (TVS) with a built-in self-limiting overvoltage protection with low capacitance and low voltage. It has an ESD rating of 15kV and is capable of limiting voltage up to 350V. Its low capacitance and low voltage makes it suitable for data line protection for sensitive circuits such as USB3.0, HDMI, and Ethernet. It also finds applications in ESD protection circuits, surge protection devices, and power supply circuits.

The P4SMA350AHE3_AIH is a TVS diode built for applications requiring high surge current protection. It has a maximum dispersing surge current rating of 13.5A along with its low capacitance and leakage current. These properties make the device suitable for handling higher currents for surges with higher voltage and shorter duration. It also features a clamping voltage of 18V typical at 1A at a lead temperature of 25°C.

The main working principle of a transient voltage suppressor diode is to clamp outvoltage spikes to reduce the system-level transient response. It does this by routing energy away from the protected device, limiting the current so that it doesn’t damage the circuit. The device works by providing an alternate low resistance path for releasing the excess current created by a transient overvoltage or an ESD. The voltage in the circuit is then clamped and limited by the TVS diode, resulting in a stable voltage flow.

In conclusion, the P4SMA350AHE3_AIH is a popular TVS diode device, used in various applications requiring transient voltage surge protection. It features a low leakage current and capacitance along with a high clamping voltage of 18V typical at 1A. It also has an ESD rating of 15kV and is capable of limiting voltage up to 350V. The device works on the principle of providing an alternative low-resistance path for releasing the excess current created by a transient overvoltage or an ESD, and the voltage in the circuit is then clamped and limited by the TVS diode, resulting in a stable voltage flow.

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