MS2250004

Inrush Current Limiters (ICL) Overview

The MS2250004 is a radial leaded negative temperature coefficient (NTC) thermistor from the Vishay Ametherm MegaSurge MS22 series, designed as an inrush current limiter. It features a nominal resistance of 50 ohms at 25°C with a tolerance of ±25%. The component supports a maximum steady-state current of 4.0 A and has a maximum recommended energy rating of 240 Joules at 25°C. It is mechanically characterized by a diameter of approximately 22 mm and is rated for AC voltages up to 680 VAC.

Inrush Current Limiters (ICL) Feature Summary

• Radial leaded construction for through-hole PCB mounting
• High energy absorption capability for circuit protection
• UL approved for safety compliance

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Industrial automation equipment
• Embedded systems power management

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct tolerance and voltage ratings. Confirm that the required steady-state current does not exceed 4.0 A and that the peak inrush energy remains within the 240 Joule limit. Check RoHS status and SVHC declarations prior to final procurement approval.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 50-ohm cold resistance is required to limit initial charging currents. Ensure the application voltage does not exceed the 680 VAC rating. Verify that the physical size accommodates the 22 mm diameter constraint and that the thermal environment allows for proper heat dissipation during continuous operation.

Inrush Current Limiters (ICL) Part Context

This part belongs to the MegaSurge MS22 series of inrush current limiters. These components are engineered to protect sensitive electronic circuits from high initial charging currents that occur when capacitive loads are connected to a power source. The series offers various resistance and current ratings to suit different power levels.

Inrush Current Limiters (ICL) Replacement Considerations

Cross-reference with other Vishay Ametherm MS22 series parts or equivalent NTC thermistors from manufacturers like EPCOS or Murata. Ensure substitute components match the 50-ohm resistance, 4A current rating, and 240J energy rating to maintain circuit performance.