20kp280ca Capacitor

Overview

The 20KP280CA is a transient voltage suppressor (TVS) diode designed for robust surge protection in electronic circuits. As part of the 20KP series, this component offers reliable protection against voltage transients and electrostatic discharge (ESD) events. TVS diodes like the 20KP280CA are essential components in power supplies, telecommunications equipment, and industrial control systems where voltage spikes can damage sensitive electronics. The 20KP280CA specifically features a 280V standoff voltage with excellent clamping characteristics.

Structure and Working Principle

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The 20KP280CA utilizes a silicon avalanche breakdown mechanism to divert excessive voltage away from protected circuits. The component features a p-n junction designed to become conductive when voltage exceeds its breakdown threshold. When normal operating voltage is present, the diode remains in a high-impedance state. During a surge event, the diode rapidly switches to a low-impedance state, clamping the voltage to a safe level and dissipating the energy as heat.

Key Features

The 20KP280CA offers several important technical characteristics. It provides 20,000 watts of peak pulse power (10/1000μs waveform) with a typical clamping voltage of 456V at 100A. The diode features a fast response time, typically less than 1 picosecond, ensuring immediate protection against transient events. Its axial lead package allows for easy through-hole mounting in various circuit configurations.

Application Areas

This TVS diode finds extensive use in AC power line protection for industrial equipment. It's commonly employed in power supplies, motor drives, and automation systems where voltage spikes from inductive loads or lightning surges may occur. The 20KP280CA is also suitable for telecommunications equipment protection, particularly in base stations and network infrastructure. Its robust design makes it ideal for harsh electrical environments where reliable surge protection is critical.

Maintenance and Precautions

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Proper installation is crucial for optimal performance of the 20KP280CA. Ensure adequate PCB clearance and consider using thermal pads for heat dissipation in high-surge environments. Regular inspection for physical damage or discoloration is recommended, especially after known surge events. When replacing, verify the new component matches all electrical specifications and is properly oriented in the circuit.

B2B Procurement Guide

When sourcing 20KP280CA diodes, verify manufacturer certifications and request detailed specifications. Reputable suppliers should provide datasheets with complete electrical characteristics and reliability data. Consider ordering samples for testing before large purchases, especially when switching suppliers. Bulk pricing typically applies for orders exceeding 1,000 units, with lead times varying from 2-8 weeks depending on market conditions.