SL1525003A

Inrush Current Limiters (ICL) Overview

The SL1525003A is a radial leaded inrush current limiter from the Vishay Ametherm SL15 series. It features a nominal resistance of 25 ohms with a tolerance of 20%. The component is rated for a continuous current of 3 amps and operates at voltage ratings of 115 VAC and 230 VAC. It has a cylindrical body diameter of 16 mm with a width of 6 mm, utilizing 1 mm diameter leads spaced 7.8 mm apart. Designed for PCB mounting, it utilizes metal oxide ceramic construction to manage high energy surges.

Inrush Current Limiters (ICL) Feature Summary

• Utilizes specially formulated metal oxide ceramic composition for precise temperature sensing and stable performance.
• Provides robust protection against high inrush currents during power-up phases in electronic circuits.
• Capable of absorbing significant surge energy without permanent degradation of electrical characteristics.

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer primary circuit protection
• Motor drive inrush limiting

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific ordering suffix 'A' matches the required tolerance and package variant. Confirm that the 16mm diameter and 7.8mm lead spacing fit the target PCB footprint. Ensure the 3A continuous current rating exceeds the maximum steady-state operating current of the application circuit to prevent thermal failure.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 25-ohm initial impedance is required to limit startup current. The 3A rating suits moderate power applications. Consider the 16mm physical size for adequate heat dissipation. Verify compatibility with the system's peak inrush energy requirements against the device's joule rating.

Inrush Current Limiters (ICL) Part Context

This part belongs to the SL15 series of inrush current limiters. These components are NTC thermistors designed specifically for circuit protection. They serve as passive elements to suppress transient currents. The series offers various resistance values and current ratings for different power levels.

Inrush Current Limiters (ICL) Replacement Considerations

SL1525003 (standard version) may be compatible if tolerance differences are acceptable. SL1547003 offers higher resistance but lower current handling. Cross-reference datasheets for exact thermal and mechanical dimensions before substitution.