S20K385 Varistor: metal-oxide; THT; 385VAC; 505VDC; 620V; 8000A; -40÷105°C

The S20K385 Varistor is a robust metal-oxide varistor (MOV) designed for superior transient voltage suppression in a wide array of electronic applications. Featuring a through-hole (THT) mounting style, this component offers easy integration and secure placement on circuit boards. With a maximum continuous AC voltage rating of 385VAC and a DC voltage rating of 505VDC, the S20K385 provides reliable overvoltage protection for sensitive electronic equipment. Its impressive surge current capability of 8000A ensures effective clamping of transient voltages, safeguarding circuits from potentially damaging spikes. The wide operating temperature range of -40°C to 105°C makes it suitable for use in harsh environments.

This varistor operates by exhibiting a high resistance under normal operating conditions, effectively isolating the protected circuit. When a transient voltage exceeds its clamping voltage of 620V, the varistor's resistance rapidly decreases, diverting the surge current away from sensitive components. This rapid response and high surge handling capability make it an ideal choice for protecting power supplies, industrial equipment, and other voltage-sensitive devices. The THT package facilitates easy installation and provides excellent mechanical stability on printed circuit boards, ensuring reliable performance over its lifespan. Its metal-oxide composition guarantees consistent and dependable protection against voltage surges.

The S20K385 varistor is particularly well-suited for applications where voltage transients are common, such as in power distribution systems, surge protectors, and industrial control panels. In power distribution, it protects against voltage spikes caused by lightning strikes or switching operations. In surge protectors, it provides a crucial layer of defense against voltage surges that can damage connected electronic devices. For industrial control panels, it safeguards sensitive control electronics from voltage transients generated by motors and other inductive loads. Its versatility and robust design make it a valuable addition to any circuit requiring reliable overvoltage protection.

When selecting a varistor, key parameters to consider include the maximum continuous operating voltage, clamping voltage, surge current capability, and operating temperature range. The S20K385 excels in all these areas, offering a superior level of protection compared to standard surge protection devices. Its high voltage and current ratings, combined with its wide operating temperature range, ensure long-term reliability and performance in demanding environments. The THT package simplifies installation and provides excellent thermal dissipation, further enhancing its suitability for a variety of applications. By incorporating the S20K385 into your designs, you can significantly reduce the risk of equipment failure and extend the lifespan of your electronic systems.

Ensure the safety and longevity of your electronic equipment with the S20K385 Varistor. Its high surge current capability, wide operating temperature range, and easy-to-install THT package make it the perfect choice for reliable overvoltage protection. Don't leave your valuable electronics vulnerable to damaging voltage spikes – invest in the S20K385 today and enjoy peace of mind knowing your circuits are protected. Order now and experience the difference that superior surge protection can make!