SL157R005L

Inrush Current Limiters (ICL) Overview

The SL157R005L is a radial leaded inrush current limiter from the Vishay Ametherm SL15 series. It features a nominal resistance of 7 ohms with a tolerance of ±20%. The component supports a maximum steady-state current of 5 A at 25°C and has a voltage rating of 230 VAC. Physical dimensions include a diameter of 16 mm, width of 6 mm, and lead spacing of 7.8 mm. It is designed for PCB mounting.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective limitation of high inrush currents during power-up to protect downstream components
• Utilizes thermistor technology that transitions from high resistance to low resistance as temperature increases
• Features UL approval for compliance with safety standards

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer primary circuits
• Capacitive load protection

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific suffix 'L' against the manufacturer's official datasheet to confirm if it denotes a distinct variant or packaging format compared to the standard SL157R005. Ensure the procurement documentation explicitly references the correct part number to avoid receiving non-conforming components due to minor designation differences.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 7-ohm resistance and 5-ampere current capacity are required for 230 VAC applications. Consider the 16 mm diameter and 7.8 mm lead spacing for PCB layout constraints. Evaluate thermal management requirements as the device operates based on self-heating characteristics.

Inrush Current Limiters (ICL) Part Context

This part belongs to the SL15 series of inrush current limiters manufactured by Vishay Ametherm. These devices are designed to replace simple resistors in circuits where high initial charging currents could cause damage or nuisance tripping. The series offers various resistance and current ratings to suit different power levels.