15KPA18CA-HR Circuit Protection

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Introduction

Unidirectional 15KPA18CA-HR is a kind of Transient Voltage Suppressor (TVS) diode, which is designed mainly for protecting circuits from high voltage transient spikes. TVS devices are often the only recommendation to protect sensitive electronic components from destruction due to external over-voltage conditions.

Application Field

The 15KPA18CA-HR TVS device is widely used to protect electronic systems from transient over-voltage. By providing a low-impedance, bidirectional current shunt, it clamps transients to a voltage level that should be safe for the semiconductors within a system.

These devices are often used in consumer electronics, including LCD/LED TVs, smart phones, laptop/notebook PCs, networking equipment, power supplies, automotive applications, and industrial/medical equipment.

Working Principle

A TVS diode is a controlled-impedance element, which requires specific tunneling principles to operate. The 15KPA18CA-HR is a diode that is designed to suppress a transient over-voltage rather than conduct a larger current than its rating.

When used in an array configuration, the TVS diodes can perform different transient-voltage protection tasks. For applications with high-gating current, such as communications systems or power supplies, the TVS can be designed to safely block higher-current surges. The array is usually designed such that the thicker dielectric layer is deposited at the voltage nodes to protect against reverse-breakdown conditions, while several other components are enclosed in a wall to prevent excessive peak currents from damaging sensitive components.

Conclusion

The 15KPA18CA-HR TVS device is an essential component in protecting electronic systems from transient over-voltages. It requires a controlled-impedance element and proper tunneling principles to operate. The TVS device is widely used in many consumer electronic systems, including LCD/LED TVs, smartphones, laptop/notebook PCs, networking equipment, power supplies, automotive applications, and industrial/medical equipment.

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