HM78D-755220MLFTR

$1.16

Description：INDUCT ARRAY 2 COIL 22UH SMD
Series：HM78D
Mfr：TT Electronics/BI Magnetics
Package：Cut Tape (CT)

SKU:3e034bfad88c Category: Arrays, Signal Transformers Brand: TT Electronics/BI Magnetics

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

Product Detailed Parameters

Description：INDUCT ARRAY 2 COIL 22UH SMD
Series：HM78D
Mfr：TT Electronics/BI Magnetics
Package：Cut Tape (CT)
Number of Coils：2
Inductance - Connected In Parallel：22 µH
Inductance - Connected In Series：86.92 µH
Tolerance：±20%
Current Rating - Parallel：1.75 A
Current Rating - Series：874 mA
DC Resistance (DCR) - Parallel：92.5mOhm
DC Resistance (DCR) - Series：371mOhm
Shielding：Shielded
Operating Temperature：-40°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：Nonstandard
Size / Dimension：0.303" L x 0.303" W (7.70mm x 7.70mm)
Height：0.189" (4.80mm)
Current Saturation - Parallel：2.13 A
Current Saturation - Series：1.07 A
Ratings：-

Download product information

HM78D-755220MLFTR

Overview

The HM78D-755220MLFTR is a shielded surface-mount coupled inductor array manufactured by TT Electronics/BI Magnetics. It features two coils with a nominal inductance of 22 µH and a tolerance of ±20%. The component has a maximum DC current rating of 2.13 A and a maximum DC resistance of 92.5 mOhms. Its physical dimensions are 7.7 mm in length, 7.7 mm in width, and 4.8 mm in height. The device operates within a temperature range of -40°C to +125°C.

Feature Summary

Shielded construction for electromagnetic interference reduction
Dual-coil configuration supporting series or parallel connections
Surface-mount design for automated assembly integration

Applications

SEPIC converter circuits
DC-DC converter stages
Portable electronic devices such as GPS systems and digital cameras

Procurement Notes

Verify the specific suffix 'LFTR' against manufacturer documentation to confirm lead-free status and tape-and-reel packaging specifications. Confirm RoHS compliance requirements align with project standards. Check for obsolescence notices as availability may vary across distributors. Ensure voltage ratings meet circuit demands before procurement.

Selection Notes

Select this component when high efficiency and ruggedness are required in low-cost designs. The dual-coil structure allows flexibility in transformer or inductor configurations. Verify that the 2.13 A current rating satisfies peak load requirements. Consider the 4.8 mm height constraint for board space limitations.

Part Context

This part belongs to the HM78D series of surface mount coupled inductors. The series is designed for general-purpose applications requiring high inductance and excellent current handling capabilities. The model number indicates specific electrical parameters within the broader family of shielded magnetic components produced by TT Electronics.