The S20K175E2K1 is a varistor manufactured by EPCOS (TDK). It is designed to protect electronic circuits from voltage surges caused by events such as lightning strikes, switching transients, and electrostatic discharge (ESD). This varistor provides a robust and dependable solution for safeguarding sensitive electronic components against overvoltage conditions.

Applications

• Power supplies and adapters
• Industrial control systems
• Telecommunication equipment
• Consumer electronics (TVs, DVD players, etc.)
• Surge protection modules

Features

• High surge current handling capability
• Fast response time to transient overvoltages
• Compliance with UL, CSA, VDE, and IEC standards
• Wide operating voltage range
• RoHS compliant (Restriction of Hazardous Substances)
• Lead-free construction

Benefits

• Effective protection against voltage surges and transients
• Enhanced reliability and longevity of electronic devices
• Prevention of damage to sensitive components
• Meets industry safety and environmental requirements
• Easy integration into circuit designs
• Cost-effective surge protection solution

Additional Details

The S20K175E2K1 has a varistor voltage of 175V. This means that it will begin to conduct significantly when the voltage across it exceeds 175V, effectively clamping the voltage and diverting the surge current away from sensitive components. The 'S20' designation indicates a 20mm disk size, offering good surge handling capabilities. The E2K1 suffix denotes the specific lead configuration and packaging style. Design engineers should consult the device datasheet for detailed specifications, including the maximum surge current rating (typically specified for an 8/20 µs pulse), clamping voltage characteristics, energy absorption capabilities, and operating temperature range. These parameters are crucial for proper varistor selection. The device utilizes a through-hole mounting configuration. Consideration of the ambient operating temperature is essential, as it can influence the varistor's performance and lifespan. Proper application ensures optimal protection and long-term reliability.