P4SMA30CAHE3/61 Circuit Protection

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TVS - Diodes are a type of semiconductor device used as a form of overvoltage protection. The P4SMA30CAHE3/61 model of TVS diodes is a bi-directional, uni-polar diode with low-capacitance and fast response time to protect sensitive electronic circuits from high voltage transients, often called electrical overstress (EOS), electrostatic discharge (ESD), and lightning transients. By diverting the transient voltage away from its associated circuitry, the P4SMA30CAHE3/61 can prevent destruction caused by abnormally high voltages and/or currents.

The 63V 30A rated P4SMA30CAHE3/61 TVS Diode consists of two individual ultra-low capacitance Zener diodes shorted together with a common cathode. This unique design allows current to flow in either direction, providing both ESD and EOS protection. It is offered in a compact 14-pin SMA package that is comparable to the size of a leaded SMA diode. The P4SMA30CAHE3/61 TVS diode is protection for Active Ethernet applications and is usually placed between the input port and the device.

This model of the TVS diode has a low capacitance value, meaning it ensures fast response time to prevent destruction or malfunction of electronics due to high voltage transients. It is provided with a wide operating temperature range, effectively allowing the device to perform better in various conditions. In addition, it has a high power dissipation capability and surge current ratings, making it a reliable ESD and EOS protection solution.

The P4SMA30CAHE3/61 TVS diode works by blocking unwanted high voltage transients, while providing reliable short circuit protection. When the diode reaches exceeding 63V, the Zener diode begins to conduct, absorbing the excessive voltage and preventing damage to the circuit. The conductive channel created between the two Zener diodes will remain closed until the voltage goes below the rated point, allowing for the normal flow of current.

The P4SMA30CAHE3/61 is commonly used in the consumer, industrial, automotive, military, and aerospace markets for high-voltage protection applications. Some typical applications include automotive ECUs, USB ports, wired/wireless telecommunications, military electronics, and protection of sensitive electronic circuitry from EOS and ESD events.

The P4SMA30CAHE3/61 TVS diodes are also RoHS compliant and feature a wide variety of temperature operation and current ratings. As such, they provide reliable protection against EOS and ESD events, while being extremely small and offering low capacitance levels. The device is suitable for many applications requiring overvoltage protection from high voltage transients and electrostatic discharges.

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