SL157R005B

Inrush Current Limiters (ICL) Overview

The Vishay Ametherm SL157R005B is a Negative Temperature Coefficient (NTC) thermistor designed for inrush current limiting. It features a nominal resistance of 7 Ohms at 25°C with a tolerance of ±25%. The component supports a maximum steady-state current of 5 Amps and can withstand an input energy surge of up to 30 Joules. It utilizes a radial leaded package with a body diameter of approximately 15mm, suitable for panel or board mounting in industrial and commercial power applications.

Inrush Current Limiters (ICL) Feature Summary

• Utilizes NTC technology to effectively limit high initial charging currents
• Robust construction capable of absorbing significant energy surges
• Radial leaded configuration facilitates standard PCB or panel integration

Inrush Current Limiters (ICL) Applications

• Switching power supplies
• Uninterruptible power supplies (UPS)
• Industrial inverters and variable frequency drives

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific suffix designation against the manufacturer's official datasheet to confirm exact thermal and electrical characteristics. Ensure the selected variant matches the required steady-state current and resistance values for the target circuit design. Cross-reference the package dimensions with mechanical constraints before finalizing procurement orders.

Inrush Current Limiters (ICL) Selection Notes

Select this component based on the required nominal resistance and maximum continuous current rating for the specific power supply topology. Evaluate the thermal dissipation requirements and ambient operating conditions to ensure the thermistor remains within safe temperature limits during normal operation and surge events.

Inrush Current Limiters (ICL) Part Context

This part belongs to the SL15 series of inrush current limiters from Vishay Ametherm. This series is engineered for rugged reliability in demanding environments, offering consistent performance across various industrial and commercial power conversion applications where surge protection is critical.

Inrush Current Limiters (ICL) Replacement Considerations

Consult official substitution guides for compatible parts within the SL series or equivalent MegaSurge™ line variants that match the 7 Ohm resistance and 5 Amp current specifications.