SL222R515B

Overview

The SL222R515B is a MegaSurge NTC thermistor inrush current limiter manufactured by Vishay Ametherm. It features a nominal resistance of 2.5 Ohms with a tolerance of ±20% and a steady-state current rating of 15 A. The component has a cylindrical body diameter of 22 mm and utilizes radial kinked leads for PCB mounting, with a lead spacing of 7.8 mm. It supports voltage ratings of 115 VAC and 230 VAC.

Feature Summary

• Incorporates a kinked lead configuration to facilitate secure through-hole PCB mounting.
• Utilizes negative temperature coefficient (NTC) technology to limit initial surge currents.
• Designed for high reliability in power supply input stages.

Applications

• Switching mode power supplies
• Electronic ballasts
• Power factor correction circuits

Procurement Notes

Verify the specific ordering suffix 'B' corresponds to the kinked lead variant, as standard versions may differ. Confirm that the 15 A current rating aligns with the thermal management requirements of the target application. Ensure the 2.5 Ohm resistance value provides adequate surge suppression without excessive power dissipation during normal operation.

Selection Notes

Select this component when a 22 mm package size is required for higher energy absorption compared to smaller variants. The kinked lead design simplifies assembly on printed circuit boards. Consider the 15 A steady-state rating to ensure the device does not overheat under continuous load conditions within the specified voltage range.

Part Context

This part belongs to the Vishay Ametherm MegaSurge series of inrush current limiters. These components are engineered to protect electronic equipment from damaging high inrush currents during power-up. The SL22 series typically offers robust performance for industrial and commercial power applications requiring reliable surge protection.

Replacement Considerations

Direct substitutes include other Vishay Ametherm parts with matching 2.5 Ohm resistance and 15 A current ratings, such as the SL224R014 or SL225R006, provided the physical dimensions and lead configurations are compatible with the existing footprint.