MF72-400D9

Inrush Current Limiters (ICL) Overview

The Cantherm MF72-400D9 is a power NTC thermistor designed for inrush current limiting. It features a nominal resistance of 400 ohms with a tolerance of ±20%. The device supports a maximum steady-state current of 200 mA and has a B-value of 3030 K (range 30-30). It is housed in an 11 mm diameter package, suitable for through-hole mounting.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective suppression of surge currents to protect sensitive electronic components
• Utilizes negative temperature coefficient characteristics for automatic resistance adjustment during operation
• Designed for series connection within power supply circuits

Inrush Current Limiters (ICL) Applications

• Inrush current limiting in AC/DC power supplies
• Surge protection for sensitive electronic equipment
• Power circuit input stages requiring current stabilization

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific part number MF72-400D9 against official Cantherm documentation to ensure correct resistance and current ratings. Confirm that the 11 mm package size and through-hole mounting requirements align with the target PCB design. Check for RoHS compliance status if required by project specifications.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 400 ohm initial resistance is required to limit peak inrush current to approximately 200 mA. Ensure the operating environment allows for the thermal recovery time associated with NTC thermistors. Verify that the physical dimensions fit the available space on the circuit board.

Inrush Current Limiters (ICL) Part Context

This component belongs to the MF72 series of power NTC thermistors manufactured by Cantherm. The series is engineered specifically for cost-effective inrush current control. The MF72-400D9 variant offers a specific balance of resistance and current handling capacity within this product line.

Inrush Current Limiters (ICL) Replacement Considerations

Consult official Cantherm cross-reference lists for verified substitutes. Ensure any replacement maintains the 400 ohm resistance, 200 mA current rating, and 11 mm form factor. Generic equivalents may not match the specific B-value or thermal characteristics.