HM78D-1210471MLFTR

Overview

The HM78D-1210471MLFTR is a surface-mount coupled inductor array manufactured by TT Electronics/BI Magnetics. It features two coils with an inductance of 470 µH. The component has a maximum DC resistance ranging from 0.57 Ω to 2.28 Ω and operates within a temperature range of -40°C to +125°C. It utilizes a four-terminal SMD package.

Feature Summary

• Dual-coil shielded coupled inductor array
• Surface mount construction for automated assembly
• Wide operating temperature capability

Applications

• DC-DC converter output filtering
• Power supply input stages
• Signal processing circuits

Procurement Notes

Verify the specific datasheet revision for the exact DC resistance value, as sources indicate a range between 0.57 Ω and 2.28 Ω. Confirm the manufacturer's current production status, as availability may vary. Ensure the selected variant matches the required inductance tolerance and thermal specifications for the target application environment.

Selection Notes

Select this component when a dual-coil configuration with high inductance is required for power management applications. Consider the physical dimensions and terminal count during PCB layout. Verify that the thermal performance meets the system's heat dissipation requirements given the specified resistance values.

Part Context

This part belongs to the HM78D series of surface-mount coupled inductors. The series offers various inductance options and coil configurations designed for compact power electronics designs. The manufacturer provides ECAD models to facilitate integration into circuit design workflows.

Replacement Considerations

Direct substitutes are not explicitly confirmed in the provided documentation. Evaluate alternative coupled inductors based on matching inductance, current ratings, and physical footprint constraints.