SL10 4R004-A

Inrush Current Limiters (ICL) Overview

The Vishay Ametherm SL104R004 is a radial leaded inrush current limiter designed for PCB mounting. It features a nominal resistance of 4 Ohms with a tolerance of ±20%. The component has a maximum steady-state current rating of 4 A and voltage ratings of 115 VAC and 230 VAC. Physical dimensions include a 10 mm diameter body, 5 mm width, and a 6.3 mm lead spacing. It operates within a temperature range of -40°C to +150°C and carries UL approval.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective limitation of high inrush currents during power-up sequences
• Utilizes NTC thermistor technology for automatic resistance adjustment based on temperature
• Features robust construction suitable for through-hole PCB integration

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer primary circuits
• Capacitor charging protection

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct tolerance and packaging specifications. Confirm that the required thermal derating curves align with the intended operating environment. Ensure compliance with RoHS directives if applicable to the target market. Cross-reference the part number with authorized distributors to validate authenticity and availability status prior to procurement.

Inrush Current Limiters (ICL) Selection Notes

Select this component when circuit design requires limiting initial surge currents to protect downstream capacitors or transformers. Evaluate the steady-state current requirements to ensure the 4 A rating provides adequate margin. Consider the physical footprint constraints regarding the 10 mm diameter and 6.3 mm lead spacing. Verify that the thermal management strategy accounts for the self-heating characteristics during normal operation.

Inrush Current Limiters (ICL) Part Context

This device belongs to the SL10 series of inrush current limiters from Vishay Ametherm. The series offers various resistance values and current ratings tailored for different power levels. These components are widely used in consumer electronics and industrial equipment to enhance reliability by mitigating stress on power switches and rectifiers during startup phases.

Inrush Current Limiters (ICL) Replacement Considerations

Consult the official Vishay Ametherm cross-reference documentation for verified substitute part numbers. Ensure any replacement matches the original electrical parameters, specifically resistance and current ratings. Verify mechanical compatibility including lead pitch and body dimensions. Do not assume interchangeability without confirming thermal performance data.