MF72-022D9

Inrush Current Limiters (ICL) Overview

The Cantherm MF72-022D9 is a negative temperature coefficient (NTC) thermistor designed for inrush current limiting. It features a nominal resistance of 22 Ohms at 25°C with a tolerance of ±20%. The component supports a maximum steady-state current of 1 A and exhibits a low-resistance value of 0.95 Ohms under operating current conditions. Physically, it has a diameter of 0.433 inches (11.00 mm) and a lead spacing of 0.295 inches (7.50 mm).

Inrush Current Limiters (ICL) Feature Summary

• Provides effective surge current suppression to protect sensitive electronic components from damage during power-up.
• Utilizes NTC thermistor technology to offer a cost-effective solution for circuit protection applications.
• Designed for through-hole mounting with standard lead spacing for easy integration into PCB layouts.

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Electronic equipment surge protection
• Consumer electronics circuit protection

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific electrical parameters against the official manufacturer datasheet before implementation. Confirm that the steady-state current rating of 1 A aligns with the target application requirements. Ensure physical dimensions, including the 11.00 mm diameter and 7.50 mm lead spacing, fit the designated PCB footprint. Check RoHS compliance status if required by project specifications.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 22 Ohm initial resistance is required to limit inrush current effectively. Ensure the application current does not exceed the 1 A steady-state maximum rating. Consider the thermal characteristics and resistance drop to 0.95 Ohms during operation. Verify compatibility with through-hole assembly processes and available board space for the 11.00 mm package size.

Inrush Current Limiters (ICL) Part Context

This part belongs to the Cantherm MF72 series of power NTC thermistors. The series is engineered to curb surge currents using thermistor properties. The MF72-022D9 variant specifically targets applications requiring moderate inrush limitation with a 22 Ohm baseline resistance. It serves as a protective element within broader circuit protection strategies.

Inrush Current Limiters (ICL) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-reference with other manufacturers' NTC thermistors having equivalent 22 Ohm resistance and 1 A current ratings only after verifying all electrical and mechanical specifications.

Inrush Current Limiters (ICL) FAQ

What is the resistance value of the MF72-022D9 at operating current?

The resistance drops to 0.95 Ohms when subjected to the specified operating current.

What is the maximum steady-state current rating?

The component is rated for a maximum steady-state current of 1 A.