The SIOV-Q20K210 is a metal oxide varistor (MOV) manufactured by EPCOS (TDK). It's designed to protect electronic circuits and devices from transient overvoltage conditions, such as surges caused by lightning strikes, inductive load switching, and electrostatic discharge (ESD).

Applications

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

Features

• High surge current capability
• Fast response time
• Wide operating voltage range
• RoHS compliant
• UL recognized
• Leaded construction for easy PCB mounting

Benefits

• Reliable overvoltage protection: Safeguards sensitive electronic components from damage caused by voltage surges.
• Improved system reliability: Reduces the risk of equipment failure and downtime, increasing overall system reliability.
• Extended equipment lifespan: Protects against degradation and damage caused by repeated exposure to transient overvoltages, extending the lifespan of electronic devices.
• Easy integration: Leaded construction simplifies integration into existing circuit designs.
• Compliance with industry standards: Meets industry safety and environmental standards.

The SIOV-Q20K210 varistor utilizes a zinc oxide (ZnO) ceramic material. When an overvoltage event occurs, the varistor's resistance rapidly decreases, diverting the surge current away from the protected components. Once the overvoltage subsides, the varistor returns to its high-resistance state, ready to protect against the next surge.

Technical Specifications:

• Maximum continuous voltage (AC): 210 V
• Maximum continuous voltage (DC): 275 V
• Surge current (8/20 µs): 6000 A
• Clamping voltage @ 5A: 510 V
• Varistor voltage: 330 V
• Operating temperature range: -40 °C to +85 °C
• Disc diameter: 20mm