The S20K150E3K1 is a varistor from EPCOS (TDK) belonging to the S20 series. It's designed to protect electronic circuits from overvoltage transients caused by events like lightning strikes, inductive load switching, and electrostatic discharge (ESD). This varistor offers a robust and reliable solution for transient voltage suppression, ensuring the longevity and proper functioning of sensitive electronic components.

Applications

• Power supplies
• Consumer electronics
• Industrial equipment
• Telecommunications equipment
• Surge protection devices (SPDs)

Features

• High surge current capability
• Fast response time
• UL, CSA, VDE, and IEC approvals
• Wide operating voltage range
• RoHS compliant
• Lead-free terminals

Benefits

• Provides reliable overvoltage protection
• Protects sensitive electronic components from damage
• Improves product reliability and lifespan
• Meets industry safety standards
• Easy to install
• Cost-effective solution for transient voltage suppression

Additional Details

The S20K150E3K1 has a varistor voltage of 150V. It is designed to clamp transient voltages to a safe level, preventing them from reaching sensitive components. The “S20” in the part number refers to the disk size, which is 20mm. This larger size generally allows for higher surge current handling capabilities compared to smaller varistors. The E3K1 indicates the specific lead configuration and packaging. It is important to consult the datasheet for specific surge current ratings (e.g., 8/20 µs pulse), clamping voltage characteristics, and other critical parameters to ensure it is suitable for the intended application. The energy absorption capability is also a key parameter when selecting a varistor. This device is designed for through-hole mounting. Careful consideration should be given to the ambient operating temperature as this can affect the varistor's performance and lifespan.