5KP45A-HR Circuit Protection

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TVS diodes are designed to protect electronic circuits from voltage surges and transients. The 5KP45A-HR TVS diode is a high-reliability, high-energy model from Littelfuse designed to safely and efficiently divert electrostatic discharges to ground.

This diode is available in an axial disc package and provides the durability and high insulation value required in modern electronics. Because of its versatile design, 5KP45A-HR can be used in a variety of applications requiring protection against electrical transients such as major and minor lightning strikes, electrostatic discharges, high-energy transients from nearby events, and connection to faulty power sources.

The 5KP45A-HR can be used across multiple industries such as industrial, medical, consumer electronics, automotive, and telecom. The device provides protection from overvoltages and transients in these applications, including secondary surge protection for LED lighting applications. It is also certified to both AEC-Q101 and UL1449 standards for safety and performance.

The working principle of a 5KP45A-HR TVS diode is based on the avalanche breakdown mechanism. When a power surge or transient voltage is applied to the junction of the diode, the voltage exceeds the reverse breakdown voltage of the diode junction and results in the electrical charge flowing through the diode until the surge is dissipated.

The 5KP45A-HR has an operating voltage range of 5.5 to 45V and a clamping voltage of 47V. The device also has a high surge energy rating of 45A, allowing it to safely absorb a wide range of high electrical surge voltages. It also has a low capacitance of 0.85pF, which minimizes interference with electrical signals.

The 5KP45A-HR is designed for use in a wide range of markets to provide protection from electrical transients and overvoltages. It has a high surge energy rating and a low capacitance, which makes it an ideal choice for a variety of applications requiring robust protection against surge voltages. The diode is AEC-Q101 and UL1449 certified to ensure safety and performance.

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