SL2260003

Overview

The SL2260003 is a negative temperature coefficient (NTC) inrush current limiter from the Vishay Ametherm SL22 series. It features a nominal resistance of 60 Ohms with a tolerance of ±25%. The component has a maximum steady-state current rating of 3 A and voltage ratings of 115 VAC and 230 VAC. It utilizes a radial leaded package with a diameter of 22 mm. The unit weighs approximately 9.4 grams and is designed for PCB mounting.

Feature Summary

• Provides effective suppression of high inrush currents during power-up cycles
• Features automatic reset capability without requiring manual intervention
• Utilizes NTC thermistor technology for stable thermal performance

Applications

• Protection of switching power supplies against initial surge currents
• Limiting inrush current in AC/DC converter circuits
• Surge protection for general electronic equipment power inputs

Procurement Notes

Verify that the specific part number matches the required electrical specifications, particularly the 60 Ohm resistance and 3 A current rating. Confirm compliance with relevant safety standards such as UL approval if required for the end application. Ensure the radial lead spacing and physical dimensions are compatible with the target PCB layout before finalizing procurement orders.

Selection Notes

Select this component when circuit design requires limiting inrush current to 3 A or less with a starting resistance near 60 Ohms. The 22 mm diameter provides sufficient thermal mass for moderate energy absorption. Consider the ±25% resistance tolerance when designing precise startup timing or current limiting thresholds for sensitive downstream components.

Part Context

This device belongs to the SL22 series of inrush current limiters manufactured by Vishay Ametherm. The series offers various resistance and current combinations within a standardized 22 mm form factor. These components are widely used in industrial and consumer electronics to protect rectifiers, capacitors, and transformers from damage caused by high initial charging currents.

Replacement Considerations

Direct substitutes include other Vishay Ametherm SL22 series parts with identical 60 Ohm resistance and 3 A ratings, such as SL2260003 variants. Cross-manufacturer replacements must match the 22 mm diameter, radial lead configuration, and equivalent I-V characteristics to ensure proper circuit function.