ICL470D25MIC

Inrush Current Limiters (ICL) Overview

The ICL470D25MIC is an NTC thermistor from the Eaton ICL family, designed as an inrush current limiter. It features a nominal resistance of 4.7 Ohms with a tolerance of ±20%. The component supports a maximum steady-state current of 11.5 A and has a body diameter of 28 mm. Key electrical parameters include a Beta value of 3100 K and B1 beta definition.

Inrush Current Limiters (ICL) Feature Summary

• Functions as an inrush current limiter to protect electronic circuits during power-up.
• Utilizes negative temperature coefficient characteristics for automatic resistance adjustment.
• Designed for leaded mounting applications with specific dimensional constraints.

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer protection circuits
• Motor drive inrush limiting

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific Beta constant (3100 K) and tolerance class against the manufacturer's datasheet before integration. Confirm that the 28 mm diameter fits the mechanical layout. Ensure the 11.5 A steady-state rating exceeds the circuit's operational current requirements under all thermal conditions.

Inrush Current Limiters (ICL) Selection Notes

Select this part when a 4.7 Ohm initial resistance is required for inrush suppression. Compare the 11.5 A current rating against peak load demands. Consider the 28 mm size for thermal dissipation needs. Verify compatibility with the system's voltage ratings and ambient temperature ranges.

Inrush Current Limiters (ICL) Part Context

This component belongs to the Eaton ICL series of NTC thermistors. It shares the I lead configuration and B1 beta definition with other parts in the family. Similar variants exist with different resistances and diameters, such as the ICL400D20MIC or ICL700D30MIC, offering alternative electrical profiles.

Inrush Current Limiters (ICL) Replacement Considerations

Direct substitutes within the same series include ICL400D20MIC or ICL700D30MIC if resistance or size adjustments are permissible. Cross-referencing with generic NTC thermistors requires matching the Beta value and steady-state current limits to ensure equivalent performance.

Inrush Current Limiters (ICL) FAQ

What is the steady-state current rating?

The ICL470D25MIC supports a maximum steady-state current of 11.5 A.

What is the nominal resistance at 25°C?

The nominal resistance is 4.7 Ohms with a tolerance of ±20%.