The SIOV-Q20K300 is a leaded varistor from EPCOS (TDK) designed for transient voltage suppression. This metal oxide varistor (MOV) is engineered to protect sensitive electronic equipment from voltage surges caused by lightning, power line disturbances, and inductive load switching. Its robust construction and reliable performance make it suitable for a wide array of applications.

Applications

• Power supplies
• Industrial electronics
• Consumer electronics
• Lighting ballasts
• Telecom equipment

Features

• High surge current capability
• Fast response time
• Wide operating voltage range
• RoHS compliant
• UL recognized
• Compact size

Benefits

• Protects sensitive electronics from damage due to voltage surges
• Improves the reliability and lifespan of electronic equipment
• Reduces downtime and maintenance costs
• Enhances safety by preventing electrical fires and other hazards
• Meets industry standards for safety and performance

Technical Specifications

The SIOV-Q20K300 has a maximum continuous operating voltage (AC) of 300 Vrms and a maximum continuous operating voltage (DC) of 385 Vdc. Its surge current capability is rated at a specific level depending on the waveform and number of pulses. The clamping voltage, which is the voltage across the varistor during a surge event, is typically in a range that ensures the protected equipment is not exposed to excessive voltage. The operating temperature range is typically between -40°C and +85°C. The 'Q' designation refers to its lead style, indicating a specific lead configuration for through-hole mounting. The 20 refers to the disc size in mm.

This varistor's ability to quickly clamp transient overvoltages makes it a crucial component in ensuring the stable and safe operation of various electrical and electronic systems. Its robust design guarantees consistent performance under demanding conditions.