HM78D-755151MLFTR

Overview

The HM78D-755151MLFTR is a shielded surface-mount coupled inductor array manufactured by TT Electronics/BI Magnetics. It features two coils with an inductance of 150 µH in parallel and 600 µH in series, maintaining a 20% tolerance. The component supports a maximum DC current of 810 mA and exhibits a parallel DC resistance of 591 mOhms. Its physical dimensions are 7.7 mm in length and width, with a height of 4.8 mm. The device operates within a temperature range of -40°C to +85°C.

Feature Summary

• Shielded two-coil inductor array design
• Surface mount SMD/SMT termination
• Dual configuration for parallel and series connection

Applications

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

Procurement Notes

Verify the specific electrical parameters against the official datasheet before integration. Confirm that the package dimensions and pinout match the target PCB footprint. Ensure the operating temperature range meets the environmental requirements of the final assembly. Cross-reference the manufacturer part number to avoid confusion with similar series variants.

Selection Notes

Select this component when a compact, shielded dual-inductor solution is required for power management applications. The low profile and small footprint suit space-constrained designs. Verify that the 810 mA current rating aligns with the circuit's peak load requirements. Consider the thermal performance at the specified maximum operating temperature.

Part Context

This component belongs to the HM78D series of surface-mount coupled inductors from TT Electronics/BI Magnetics. The series offers various inductance values and current ratings in standardized packages. These components are designed for high-performance power electronics, providing magnetic shielding to reduce electromagnetic interference in dense layouts.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative suppliers by matching inductance, current rating, and physical dimensions.