SL325R020B

Inrush Current Limiters (ICL) Overview

The SL325R020B is a radial lead-inrush current limiter from the SL series, manufactured by Vishay Ametherm. It features a 32mm diameter disc with a nominal resistance of 5 Ohms and a tolerance of ±20%. The component is rated for a steady-state current of 20 A and supports voltage ratings of 115 VAC and 230 VAC. Physical dimensions include a width of 6 mm and a lead spacing of 7.8 mm. It utilizes a kinked lead design for secure PCB mounting.

Inrush Current Limiters (ICL) Feature Summary

• Kinked lead configuration ensures stable mechanical retention on printed circuit boards during operation.
• Thermistor-based construction provides automatic resistance reduction as temperature increases during normal operation.

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer inrush protection
• Capacitive load switching circuits

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific suffix 'B' corresponds to the kinked lead variant required for your assembly process. Confirm that the 5 Ohm resistance value aligns with your system's peak inrush current calculations. Ensure the PCB footprint matches the 7.8 mm lead spacing and 32mm body diameter specifications provided in the official datasheet.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 20 A steady-state current capacity is required alongside a 5 Ohm initial resistance. The 32mm form factor offers higher energy absorption compared to smaller series. Consider the kinked lead style if through-hole mounting stability is critical for the application environment.

Inrush Current Limiters (ICL) Part Context

This part belongs to the SL series of inrush current limiters, designed for general-purpose electronic equipment. It complements other Vishay Ametherm thermistors by offering a balance between high peak current handling and low operating resistance after thermal stabilization.

Inrush Current Limiters (ICL) Replacement Considerations

Direct substitutes must match the 5 Ohm resistance, 20 A rating, and 32mm diameter. Verify lead type compatibility; standard straight leads may not fit footprints designed for kinked variants without modification.