The SIOV-Q20K385 is a leaded varistor manufactured by EPCOS (TDK), purposefully built for robust transient voltage suppression, thereby protecting sensitive electronic components from the detrimental effects of voltage surges. This metal oxide varistor (MOV) is designed to provide protection against overvoltage events arising from various sources, including lightning strikes, power line fluctuations, and inductive load switching. Its durable construction and reliable performance render it suitable for a broad spectrum of applications.

Applications

• Power supplies
• Surge protection modules
• Industrial equipment
• Consumer appliances
• Telecommunication systems

Features

• High surge current withstanding capability
• Rapid response to transient voltage events
• Wide range of operating voltages
• RoHS compliant
• UL recognized component
• Compact design for efficient board layout

Benefits

• Safeguards electronic devices from damage caused by voltage transients
• Improves the overall reliability and longevity of electronic equipment
• Reduces downtime and associated maintenance costs
• Enhances safety by preventing electrical fires and related hazards
• Meets industry standards for safety and performance

Technical Specifications

The SIOV-Q20K385 features a maximum continuous operating voltage of 385 Vrms (AC) and 500 Vdc (DC). Its surge current capability is specified according to industry-standard waveforms and pulse counts. The clamping voltage, which determines the voltage level at which the varistor begins to conduct and shunt excess voltage, is carefully chosen to protect downstream components. The operating temperature range typically spans from -40°C to +85°C. The 'Q' in the part number indicates a specific lead configuration designed for through-hole mounting. The 20 refers to the disc size in mm.

By effectively clamping transient overvoltages, the SIOV-Q20K385 plays a vital role in ensuring the stable and safe operation of diverse electrical and electronic systems. Its rugged design ensures consistent performance even under demanding conditions.