P4KE27AHE3/54 Circuit Protection

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TVS - Diodes

TVS (Transient Voltage Suppressor) - diodes are a type of diode specially designed to protect electronic components and circuits from overvoltage and transients. TVS diodes often come in small packages with two or three leads, and are usually inserted directly into a circuit. The most common type used in modern electronics is the P4KE27AHE3/54, which is a dual junction diode with an integrated overvoltage protection device.

Application Field of P4KE27AHE3/54 TVS-Diodes

The P4KE27AHE3/54 is primarily used to protect circuits from overvoltage and transients due to electrostatic discharge (ESD). They are used in a wide range of applications, from consumer electronics to semiconductor manufacturing. This diode is designed to provide reliable protection against transients caused by various environmental conditions, such as lightning, power surges, and other potential risks that could cause permanent damage to a circuit. Additionally, it is often used to protect high-speed interfaces, such as USB, Ethernet, and optical links, which could be vulnerable to overvoltage and transient discrimination.

Working Principle of P4KE27AHE3/54 TVS-Diodes

The P4KE27AHE3/54 is a dual junction diode with an onchip overvoltage protection device. The overvoltage protection device is designed to provide protection up to 37kV max, while the diode itself provides protection up to 7kV. The device works by limiting the voltage across the diode and clamping the voltage near ground when an overvoltage condition is detected. When the voltage reaches the breakdown voltage, the P4KE27AHE3/54 enters a low on-state, which provides additional protection from the overvoltage and transients.

The P4KE27AHE3/54 has a low on-state resistance to ensure a low voltage drop when the device is activated. The device also has a low clamping voltage to prevent damage to the circuit from being caused by large overvoltage surges. The P4KE27AHE3/54 is designed to provide fast response time and good ESD protection for single-line circuits.

Conclusion

The P4KE27AHE3/54 is a dual junction diode with an onchip overvoltage protection device, designed to provide reliable protection against overvoltage and transients. It is used in a wide range of applications, from consumer electronics to semiconductor manufacturing. The device features a low on-state resistance and low clamping voltage to ensure efficient protection for single-line circuits.

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