MF72-020D11

Inrush Current Limiters (ICL) Overview

The Cantherm MF72-020D11 is a Negative Temperature Coefficient (NTC) thermistor designed as an inrush current limiter (ICL). It features a nominal resistance of 20 Ohms at 25°C with a tolerance of ±20%. The component supports a maximum steady-state current of 2 Amperes and exhibits a stabilized resistance of approximately 1.5 Ohms during operation. Physically, it has a disc diameter of 0.512 inches (13.00mm) and a lead spacing of 0.295 inches (7.50mm).

Inrush Current Limiters (ICL) Feature Summary

• Functions as an inrush current limiter to protect electronic circuits from high initial charging currents.
• Utilizes NTC thermistor technology where resistance decreases significantly as temperature rises.
• Designed for through-hole mounting with standard lead spacing for PCB integration.

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer primary windings
• Capacitor bank charging circuits

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific manufacturer part number against official datasheets to ensure compatibility with circuit requirements. Confirm that the steady-state current rating of 2A aligns with the application's operational limits. Check RoHS compliance status if required by regulatory standards. Ensure proper thermal management considerations are addressed during installation.

Inrush Current Limiters (ICL) Selection Notes

Select this component based on the required nominal resistance and maximum steady-state current capabilities. Consider the physical dimensions, specifically the 13mm diameter and lead spacing, for PCB layout constraints. Evaluate the thermal characteristics to ensure the device can handle the expected energy dissipation without exceeding its rated limits during repeated switching cycles.

Inrush Current Limiters (ICL) Part Context

This component belongs to the MF72 series of inrush current limiters manufactured by Cantherm. These devices are specialized NTC thermistors intended for protecting sensitive electronics against surge currents. The series offers various resistance and current ratings to suit different power applications.

Inrush Current Limiters (ICL) Replacement Considerations

Cross-reference with other MF72 series variants or equivalent ICLs from other manufacturers having matching 20 Ohm resistance and 2A steady-state current ratings. Verify dimensional compatibility and lead configuration before substitution.