HM78D-128681KLFTR

Overview

The HM78D-128681KLFTR is a shielded surface-mount inductor array manufactured by TT Electronics/BI Magnetics. It features two coils with a parallel inductance of 680 µH and a series inductance of 2.72 mH. The component has a tolerance of ±20% and operates within a temperature range of -40°C to +85°C. Its physical dimensions are 12.5 mm x 12.5 mm x 8.05 mm, designed for compact electronic circuit integration.

Feature Summary

• Dual-coil configuration providing flexible series or parallel connection options
• Shielded construction to minimize electromagnetic interference
• Surface-mount design for automated PCB assembly

Applications

• Power filtering circuits
• Energy storage applications
• Noise suppression systems

Procurement Notes

Verify the specific suffix 'K' against official manufacturer documentation to confirm tolerance and packaging details. Confirm availability status as distribution data may vary. Ensure compatibility with existing footprint designs before procurement.

Selection Notes

Select this component when dual-coil shielding and high inductance values are required in a compact SMD package. Compare thermal performance and saturation characteristics against alternative arrays from the same manufacturer family.

Part Context

This part belongs to the HM78D series of coupled inductors. It shares dimensional similarities with other variants like the HM78D-128680MLFTR but differs significantly in inductance values and tolerance specifications.

Replacement Considerations

The SRF1280-680M by Bourns Inc. is listed as a direct substitute. Verify electrical parameters and pinout compatibility before substitution.