MS2250004A

Inrush Current Limiters (ICL) Overview

The MS2250004A is a through-hole negative temperature coefficient thermistor designed as an inrush current limiter. It features a nominal resistance of 50 Ohms with a tolerance of ±25%. The component supports a steady-state maximum current of 4 A and can withstand an inrush energy capacity of 240 Joules. It has a diameter of 23.00 mm (0.906 inches). This device functions by providing high initial resistance to limit startup surge currents, which decreases as the component heats up during operation.

Inrush Current Limiters (ICL) Feature Summary

• Provides automatic inrush current limiting through negative temperature coefficient characteristics
• Capable of absorbing significant transient energy without damage
• Offers firm tolerance control for consistent circuit performance

Inrush Current Limiters (ICL) Applications

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

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific datasheet version for the MS2250004A to confirm mechanical dimensions and thermal characteristics match design requirements. Ensure the application voltage and current ratings remain within the specified 4 A steady-state and 240 Joules energy limits. Cross-reference the manufacturer's official documentation for any updates regarding RoHS compliance status or recommended soldering profiles to guarantee long-term reliability.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a robust solution is needed to protect sensitive downstream electronics from high initial charging currents. The 50 Ohm resistance value should be calculated based on the specific capacitance and voltage of the target circuit to ensure effective limiting. Consider the physical size of 23.00 mm diameter for adequate heat dissipation and board space allocation in the final assembly layout.

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 NTC thermistors engineered specifically for protecting electronic circuits against damaging surge currents during power-up events. The series provides reliable performance in demanding environments where stable current limiting is critical for system integrity.

Inrush Current Limiters (ICL) Replacement Considerations

Direct substitutes must match the 50 Ohm nominal resistance, 4 A current rating, and similar physical dimensions. Verify that alternative NTC thermistors offer comparable energy absorption capabilities of approximately 240 Joules to ensure equivalent protection levels in the circuit.