The SIOV-S20K420E3K1 is a leaded varistor manufactured by EPCOS (TDK) designed for effective transient voltage suppression. As a metal oxide varistor (MOV), it protects sensitive electronic equipment from voltage surges resulting from lightning strikes, power line disturbances, and inductive load switching. Its robust design and reliable performance make it suitable for diverse applications.

Applications

• Power supplies
• Industrial control systems
• Consumer electronics
• Lighting surge protection
• Telecommunications equipment

Features

• High surge current withstanding capability
• Rapid response to transient events
• Broad operating voltage spectrum
• Compliance with RoHS standards
• UL certification
• Compact design for space-constrained applications

Benefits

• Safeguards electronic components from damage caused by overvoltage
• Extends the operational life and enhances the reliability of electronic systems
• Minimizes equipment downtime and reduces maintenance expenses
• Increases safety levels by preventing electrical hazards and potential fires
• Adheres to stringent industry safety and performance benchmarks

Technical Specifications

The SIOV-S20K420E3K1 has a maximum continuous operating voltage of 420 Vrms (AC). Its surge current handling capability is tailored to withstand specific waveforms and pulse counts, as specified by industry standards. The clamping voltage is carefully calibrated to shield protected devices effectively. The operating temperature range typically spans from -40°C to +85°C. The 'S' in the part number indicates a specific lead configuration. The 'E3K1' likely refers to a specific packaging or lead material variant. The 20 refers to the disc size in mm.

By providing rapid and effective clamping of transient overvoltages, this varistor is essential for ensuring the stable and secure operation of diverse electronic and electrical systems. Its rugged construction ensures consistent performance in demanding operational environments.