ICL470D30MIC

Inrush Current Limiters (ICL) Overview

The ICL470D30MIC is an NTC thermistor from the Eaton ICL family, designed for inrush current limiting. It features a nominal resistance of 4.7 ohms at standard reference conditions and utilizes I-lead configuration with a 30 mm body size. The component exhibits a B-parameter of 3150 K and adheres to B1 beta definition standards. Beta tolerance is specified as J class. This discrete device serves as a critical passive element for managing transient electrical loads in power supply circuits.

Inrush Current Limiters (ICL) Feature Summary

• Functions as an inrush current limiter utilizing negative temperature coefficient characteristics
• Constructed with I-lead termination style for through-hole mounting applications
• Engineered with a 30 mm physical form factor for specific thermal mass requirements

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer protection circuits
• Capacitor charging control

Inrush Current Limiters (ICL) Procurement Notes

Verify the exact B-parameter value and tolerance class against the manufacturer's official datasheet prior to ordering. Confirm that the I-lead configuration matches the target PCB footprint. Ensure the 30 mm size constraint fits within the assembly envelope. Cross-reference the Eaton part number directly with authorized distributors to avoid counterfeit components.

Inrush Current Limiters (ICL) Selection Notes

Select this component when a 4.7 ohm initial resistance is required for inrush suppression. The 3150 K B-value indicates specific thermal sensitivity suitable for certain ambient operating ranges. The 30 mm size provides distinct thermal inertia compared to smaller variants. Evaluate peak current handling capabilities against circuit fault conditions before finalizing the design choice.

Inrush Current Limiters (ICL) Part Context

This part belongs to the Eaton ICL series of NTC thermistors. Similar parts include ICL301D30MIC and ICL070D30MIC, which share the same family designation but differ significantly in resistance values and physical dimensions. The series is standardized for industrial power management applications requiring reliable transient current control.

Inrush Current Limiters (ICL) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Direct replacement requires matching the 4.7 ohm resistance, 3150 K B-parameter, and 30 mm size constraints precisely.