The S05K320 is a varistor manufactured by EPCOS (TDK). It is a voltage-dependent resistor (VDR) designed to protect electronic circuits from transient overvoltage events, such as electrostatic discharge (ESD), lightning strikes, and inductive switching. This varistor offers a compact size and reliable performance, making it suitable for a wide range of applications.

Applications

• Power supplies
• Industrial electronics
• Consumer electronics
• Lighting ballasts
• Surge protection devices

Features

• Compact size (5mm disk diameter)
• High surge current capability
• Fast response time
• Wide operating voltage range
• UL, CSA, and VDE approvals
• RoHS compliant

Benefits

• Provides reliable overvoltage protection
• Prevents damage to sensitive electronic components
• Extends the lifespan of electronic equipment
• Reduces downtime and maintenance costs
• Meets international safety standards

Additional Details

The S05K320 has a maximum continuous operating voltage (AC) of 320V and a maximum continuous operating voltage (DC) of 420V. Its varistor voltage (at 1mA) is typically 510V. The maximum surge current it can withstand is dependent on the waveform and number of pulses, consult the datasheet for specific values. The operating temperature range is typically -40°C to +85°C. The device is typically supplied in bulk or tape and reel packaging. The clamping voltage, which is the voltage across the varistor during a surge event, is a crucial parameter to consider when selecting a varistor. A lower clamping voltage provides better protection for sensitive components.