P4KA7.5AHE3/54

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TVS - Diodes

A Transient Voltage Suppression (TVS) diode is a specialized semiconductor diode designed to provide protection against overvoltage transients in electronic systems. It consists of a diode-zener structure with a two-layer clamping structure. The diode-zener portion of the TVS diode provides a clamping voltage at or near the breakdown voltage of the diode. The two-layer structure enables the diode to pass brief surges of current without dissipating too much power, but can be damaged if the applied voltage is too high or the surge current too great.

P4KA7.5AHE3/54 application field and working principle

The P4KA7.5AHE3/54 TVS diode is a high power diode with common applications including protection against electrical overstress caused by system-level transients, voltage spikes and induction transients. It offers fast response times to minimize damage to components, and is designed to be used in a broad range of automotive, consumer and industrial equipment such as computers, data centers, telecommunications, consumer audio/video products and industrial control devices.

The P4KA7.5AHE3/54 works by allowing an initial surge of current up to its maximum power dissipation. When the applied voltage exceeds the clamping voltage, the device provides short-circuit current to quickly dissipate the energy, protecting the equipment or component from damage. The voltage at which the diode is activated is called the breakdown voltage, typically around 7.5V.

When the voltage exceeds the breakdown voltage level, the diode-zener portion of the TVS diode immediately start to conduct, allowing the two-layer clamping structure to pass a brief surge of current without dissipating too much power. This ensures that the device is not damaged and can continue to protect against further overvoltage transients.

The P4KA7.5AHE3/54 TVS diode is housed in a simple, inexpensive, SMD package that is designed to be easily mounted in a variety of applications. It is lead-free and RoHS compliant so that it can be used in environmentally friendly designs. It also has a maximum continuous operating power rating of 1,500W.

The P4KA7.5AHE3/54 offers a protection threshold voltage of 7.5V, can operate from -55°C to +150°C and is available in a variety of packages. It is easy to install, reliable, and offers superior protection against overvoltage transients.

In summary, the P4KA7.5AHE3/54 TVS diode is an ideal choice for protection against overvoltage transients, voltage spikes, and induction transients. It provides reliable protection and has a wide operating temperature range, making it suitable for a variety of applications in the consumer, automotive, and industrial markets.

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