SL225R012A

Overview

The SL225R012A is a negative temperature coefficient (NTC) thermistor designed as an inrush current limiter. It features a nominal resistance of 5 Ohms with a tolerance of ±20%. The component supports a steady-state current rating of 12 A and operates at voltage ratings of 115 VAC and 230 VAC. Physical dimensions include a diameter of 22 mm, width of 6 mm, and lead spacing of 7.8 mm. It utilizes radial kinked leads for PCB mounting.

Feature Summary

• Limits inrush current to protect switching power supply components
• UL approved for safety compliance
• Radial kinked lead configuration for printed circuit board mounting

Applications

• Switching power supplies
• Power control boxes
• Electronic equipment requiring surge protection

Procurement Notes

Verify the specific ordering suffix against the manufacturer datasheet to confirm lead type and package variations. Ensure the selected variant matches the required steady-state current and voltage ratings for the target application. Cross-reference the Mouser number 995-SL22-5R012 for accurate identification during sourcing.

Selection Notes

Select this component based on the 5 Ohm resistance value and 12 A current capacity requirements. Consider the 22 mm diameter for thermal dissipation needs and available PCB space. Verify compatibility with 115 VAC or 230 VAC input systems. Confirm that the radial kinked lead style fits the intended PCB footprint.

Part Context

This part belongs to the Vishay Ametherm SL series of inrush current limiters. These NTC thermistors are engineered to reduce initial charging currents in capacitive loads. The series offers various resistance and current ratings to suit different power levels.

Replacement Considerations

SL225R012