SL1280002

Inrush Current Limiters (ICL) Overview

The Vishay Ametherm SL1280002 is a negative temperature coefficient (NTC) thermistor designed as an inrush current limiter (ICL). It features a nominal resistance of 80 Ohms with a tolerance of ±20%. The component supports a maximum steady-state current rating of 2 A at 25°C. It utilizes radial leads for through-hole PCB mounting and is rated for AC voltages of 115 VAC and 230 VAC. The physical dimensions include a diameter of 0.512 inches (13.00 mm).

Inrush Current Limiters (ICL) Feature Summary

• Utilizes NTC thermistor technology to limit initial surge currents during power-up.
• Provides robust energy absorption capabilities with specified actual energy failure thresholds.
• Designed for direct through-hole PCB mounting with radial lead termination.

Inrush Current Limiters (ICL) Applications

• Power supply input stages for consumer electronics
• Industrial control systems requiring surge protection
• AC mains powered equipment operating at 115 VAC or 230 VAC

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific manufacturing date code and lot traceability upon receipt, as component performance can vary with thermal history. Ensure that the receiving facility has appropriate ESD handling procedures, although ICLs are generally robust. Confirm that the mechanical footprint matches the design requirements, specifically the lead spacing and body diameter, to avoid assembly issues. Cross-reference the datasheet revision to ensure compliance with current safety standards applicable to your region.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a fixed 80 Ohm resistance is required to manage inrush currents up to 2 A. Consider the thermal environment, as the steady-state current rating is defined at 25°C; higher ambient temperatures may necess derating. Evaluate the peak inrush current against the recommended energy limits (30 J) to prevent device damage. Compare with other SL12 series variants if different resistance values or current ratings better suit the specific circuit topology and voltage requirements.

Inrush Current Limiters (ICL) Part Context

The SL1280002 belongs to the Vishay Ametherm SL12 series of inrush current limiters. This series is characterized by compact radial-leaded packages suitable for space-constrained PCB designs. The SL12 family offers various resistance and current combinations to accommodate diverse power supply architectures. These components are widely used in applications where reliable startup protection is critical for maintaining system integrity and preventing fuse blowing.

Inrush Current Limiters (ICL) Replacement Considerations

Direct substitutes within the same series include parts with identical electrical characteristics but potentially different packaging suffixes. Verify that any alternative part number maintains the 80 Ohm nominal resistance and 2 A current rating. Ensure the replacement component meets the same voltage ratings and physical dimensions to guarantee compatibility with existing board layouts and assembly processes.