MS2275004B

Inrush Current Limiters (ICL) Overview

The MS2275004B is a negative temperature coefficient (NTC) thermistor inrush current limiter from the Vishay Ametherm MS series. It features a nominal resistance of 75 Ohms with a tolerance of ±25% at 25°C. The component supports a maximum steady-state current of 4.0 A up to an ambient temperature of 65°C and has a recommended energy rating of 240 Joules. It utilizes a radial leaded package with a diameter of 23 mm, designed for PCB mounting.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective suppression of high inrush currents during power-up sequences
• Utilizes NTC thermistor technology for stable conduction after initial heating
• Radial leaded construction facilitates through-hole PCB integration

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Industrial automation control systems
• Embedded system power management

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific suffix 'B' against the manufacturer's official datasheet to confirm exact dimensional tolerances and marking codes. Ensure the application environment does not exceed the 65°C steady-state thermal limit. Confirm that the 240 Joules energy rating aligns with the peak surge requirements of the target circuit design.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 75 Ohm cold resistance is required to limit initial charging currents. The 4.0 A current rating suits moderate power applications. Consider the 23 mm body size for adequate heat dissipation. Validate that the 240 Joule energy absorption capacity meets the worst-case switching scenarios of the equipment.

Inrush Current Limiters (ICL) Part Context

This part belongs to the MS series of inrush current limiters manufactured by Vishay / Ametherm. These components are specialized resistors designed to protect electronic circuits from damage caused by excessive initial current flow. The series offers various resistance and current ratings to match different power supply architectures.

Inrush Current Limiters (ICL) Replacement Considerations

Cross-reference with MS2275004 for potential functional equivalence. Verify that any substitute matches the 75 Ohm resistance, 4.0 A current rating, and 23 mm physical dimensions to ensure compatibility with existing PCB footprints and thermal management requirements.