MF72-004D11

Inrush Current Limiters (ICL) Overview

The Cantherm MF72-004D11 is a Negative Temperature Coefficient (NTC) thermistor designed as an inrush current limiter (ICL). It features a nominal resistance of 4 Ohms at 25°C with a tolerance of ±20%. The component supports a maximum steady-state current of 4 Amperes and has a disc diameter of 0.512 inches (13.00mm). It is supplied in bulk packaging and complies with RoHS3 directives.

Inrush Current Limiters (ICL) Feature Summary

• Utilizes NTC ceramic material to provide high initial resistance that decreases rapidly upon heating, effectively limiting startup surge currents.
• Designed for automatic reset functionality without requiring manual intervention or replacement after thermal cycling.
• Constructed with leaded terminals suitable for through-hole mounting on printed circuit boards.

Inrush Current Limiters (ICL) Applications

• Power supplies and inverters
• Uninterruptible Power Supplies (UPS)
• Energy saving lamps

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific suffix D11 against the manufacturer's official datasheet to confirm lead spacing and package dimensions match the design requirements. Ensure the application voltage and current ratings do not exceed the component's maximum steady-state limits. Confirm RoHS3 compliance status if required by local regulations. Check for any specific storage or handling instructions regarding moisture sensitivity prior to assembly.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a low-resistance inrush limiter is required for circuits drawing up to 4 Amperes. The 4 Ohm initial resistance is suitable for applications where moderate surge suppression is needed without excessive power loss during normal operation. Consider the physical size of the 13mm disc for board space constraints. Evaluate the thermal environment to ensure the steady-state temperature remains within safe operating limits.

Inrush Current Limiters (ICL) Part Context

This part belongs to the MF72 series of inrush current limiters manufactured by Cantherm. The series offers various resistance values and current ratings to suit different power levels. The MF72 series is widely used in consumer electronics and industrial power equipment for protecting components from high initial charging currents.

Inrush Current Limiters (ICL) Replacement Considerations

Public confirmed substitute part numbers include TDK B57211P0409M301, Bourns BN-LG13Y4R0MYB, and Vishay Ametherm SL125R005. Verify electrical parameters and mechanical dimensions before substitution.

Inrush Current Limiters (ICL) FAQ

What is the nominal resistance value of the MF72-004D11?

The nominal resistance is 4 Ohms measured at 25°C.

What is the maximum steady-state current rating?

The maximum steady-state current is 4 Amperes.