SL12 10004-B

Inrush Current Limiters (ICL) Overview

The SL12 10004-B is a negative temperature coefficient (NTC) inrush current limiter from the Vishay Ametherm SL12 series. It features a nominal resistance of 10 ohms with a tolerance of ±20%. The component is rated for a maximum steady-state current of 4 amperes and has a diameter of 13 millimeters (0.512 inches). Designed for radial lead mounting, it utilizes ceramic technology to provide effective surge protection in electronic circuits.

Inrush Current Limiters (ICL) Feature Summary

• Provides high initial resistance to limit peak charging currents during power-up
• Automatically reduces resistance as temperature increases during operation
• Radial leaded construction facilitates through-hole printed circuit board mounting

Inrush Current Limiters (ICL) Applications

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

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific suffix 'B' against the manufacturer datasheet to confirm physical dimensions and lead configuration match design requirements. Ensure thermal management accounts for self-heating effects during continuous operation cycles. Confirm that the 4A steady-state rating exceeds the application's maximum operating current under all environmental conditions.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 10-ohm initial impedance is required to suppress inrush events up to 4 amperes. The 13mm diameter offers a balance between surge energy absorption and spatial constraints on the PCB. Verify compatibility with the target voltage levels and ambient temperature ranges specified in the official electrical characteristics table.

Inrush Current Limiters (ICL) Part Context

This part belongs to the SL12 series of NTC thermistors manufactured by Vishay Ametherm. The series is engineered for general-purpose inrush current limiting applications. The specific model designation indicates the resistance value, current rating, and physical size within the product family lineup.

Inrush Current Limiters (ICL) Replacement Considerations

Cross-reference with other Vishay Ametherm SL12 variants or equivalent NTC thermistors from other manufacturers offering identical 10-ohm resistance and 4A current ratings. Verify that substitute components meet the same thermal and electrical specifications for direct replacement.