The SIOV-Q20K320 is a leaded varistor manufactured by EPCOS (TDK), designed to provide robust transient voltage suppression for sensitive electronic devices. As a metal oxide varistor (MOV), it is engineered to protect against voltage surges stemming from sources like lightning strikes, power grid fluctuations, and inductive load switching. Its durable construction and consistent performance make it a reliable choice for a wide range of 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-Q20K320 features a maximum continuous operating voltage of 320 Vrms (AC) and 415 Vdc (DC). It is characterized by its high surge current handling capability, tailored to withstand specific waveforms and pulse counts. The clamping voltage, the voltage level at which the varistor activates to shunt excess voltage, is carefully calibrated to shield protected devices effectively. The operating temperature range typically spans from -40°C to +85°C. The 'Q' in the part number indicates a specific lead configuration for through-hole mounting. 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.