SL1522102A

Inrush Current Limiters (ICL) Overview

The SL1522102A is an NTC thermistor-based inrush current limiter manufactured by Vishay Ametherm. It features a nominal resistance of 220 Ohms with a tolerance of ±25% at 25°C. The component supports a maximum steady-state current of 2 A and operates within the SL15 series. Designed for through-hole mounting, it has a diameter of 16 mm (0.630 inches) and a lead pitch of 7.8 mm. The device is UL approved and RoHS compliant, intended for circuit protection against high initial surge currents.

Inrush Current Limiters (ICL) Feature Summary

• Utilizes negative temperature coefficient technology to limit high inrush currents during power-up
• Provides UL approval for safety compliance in electrical circuits
• Features radial through-hole construction for standard PCB integration

Inrush Current Limiters (ICL) Applications

• Protection of power supplies from initial surge currents
• Inrush current limiting in AC/DC converters
• Circuit protection for transformer inputs

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific suffix 'A' against the official Vishay datasheet to confirm mechanical dimensions and certification status. Ensure the required steady-state current does not exceed 2 A. Confirm that the 220 Ohm resistance value aligns with the target circuit's thermal and electrical design requirements before finalizing procurement.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 220 Ohm initial resistance is required for moderate inrush suppression. The 2 A current rating suits low-to-medium power applications. Consider the 16 mm diameter for adequate heat dissipation and physical clearance on the PCB layout compared to smaller series variants.

Inrush Current Limiters (ICL) Part Context

This part belongs to the SL15 series of inrush current limiters, characterized by a 15 mm body diameter. It complements other Vishay Ametherm components like the SL22 series for higher current or resistance needs. The ACCU-CURVE branding indicates optimized beta values for precise thermal response in consumer and industrial electronics.

Inrush Current Limiters (ICL) Replacement Considerations

Direct substitutes include the SL1522102 if the 'A' suffix denotes a specific packaging or minor variant without functional change. For different current ratings, consider the SL1522101 (1 A) or SL1522103 (higher current). Verify that alternative parts maintain the same 220 Ohm resistance and 16 mm form factor.