5KP90A

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TVS (Transient Voltage Suppression) Diode is a solid state device used for protection against voltage surges such as electrostatic discharges and lightning strikes. It is designed to clamp down excess voltage, and protect sensitive circuits from damage. It is composed of two diode junctions back to back. The 5KP90A is a TVS diode part number belonging to Bourns’ 5KP90A Series, offering one of the industry’s widest working voltage range of 5.9V to 595V. Its maximum surge current rating is 900A (8/20μs).

Applications of 5KP90A

The 5KP90A Series TVS diodes provide reliable protection for automotive, industrial, and consumer applications. It can protect sensitive electronics from voltage surges caused by inductive loads such as relays, reverse battery connection, and DC-DC converters. Additionally, it can be used in harsh environment with its highly durable construction. Common applications include protection of power supplies, automotive sensors, motors, electromechanical motors, stimulation circuits, security systems, and other systems exposed to transient voltages.

Working Principle of 5KP90A

The 5KP90A TVS diode consists of two back-to-back PN junction diodes, connected in parallel and in opposite polarity. During normal operation, the current flow through the diodes is almost 0. When a voltage surge occurs, one of the diodes will be forward biased, allowing current to flow from anode to cathode. The other diode will be reverse biased, blocking reverse current from flowing. As a result, the voltage drop across the diode will be clamped down and the surge current can be safely discharged.

The 5KP90A diode is designed to protect circuits from voltage surges in the range of 5.9V to 595V. With its high peak pulse current rating of 900A, it can protect circuits from high-energy pulses such as lightning strikes. Its high surge current capability and robust die construction make it an ideal choice for protecting electronics from electrical damage.

Conclusion

TVS diodes are essential components in protecting sensitive electronics, as they can effectively clamp down voltage surges and provide reliable protection. The 5KP90A Series TVS Diodes from Bourns are high-performance protection devices with a very wide working voltage range. With its high peak pulse current rating of 900A, it can protect circuits from high-energy pulses, making it ideal for automotive, consumer, and industrial applications.

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