MF72-005D9

Inrush Current Limiters (ICL) Overview

The Cantherm MF72-005D9 is an inrush current limiter (ICL) from the MF72 series, designed to protect sensitive electronics from surge damage. It features a nominal resistance of 5 Ohms with a tolerance of ±20% at 25°C. The component supports a maximum steady-state current of 3 A and has a physical diameter of 0.433 inches (11.00 mm).

Inrush Current Limiters (ICL) Feature Summary

• Provides effective suppression of surge currents to prevent damage to downstream electronic components.
• Utilizes negative temperature coefficient characteristics for efficient thermal management during operation.

Inrush Current Limiters (ICL) Applications

• Surge current protection in power supply circuits
• Inrush current limiting for sensitive electronic devices
• Thermal calibration applications requiring specific resistance values

Inrush Current Limiters (ICL) Procurement Notes

Verify that the replacement part matches the original specifications, specifically the 5 Ohm resistance value, 3 A current rating, and 11.00 mm diameter. Confirm RoHS compliance status and ensure the package type aligns with the existing board layout requirements before finalizing the procurement order.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a higher initial resistance than standard 4 Ohm variants is required for specific circuit protection thresholds. Ensure the 3 A steady-state current rating meets the operational load requirements of the target application without exceeding thermal limits.

Inrush Current Limiters (ICL) Part Context

This part belongs to the Cantherm MF72 series of power NTC thermistors. These components are engineered as cost-effective solutions for curbing surge currents. The series offers various resistance and current ratings to suit different power levels and protection needs within electronic assemblies.

Inrush Current Limiters (ICL) Replacement Considerations

B57211P0409M301 by TDK is listed as a similar substitute part number.

Inrush Current Limiters (ICL) FAQ

What is the resistance value of the MF72-005D9 at 25°C?

The resistance value at 25°C is 5 Ohms with a tolerance of ±20%.

What is the maximum steady-state current rating for this component?

The maximum steady-state current rating is 3 A.