B78108E1472K009

$0.25

Description：FIXED IND 4.7UH 2.75A 85 MOHM TH
Series：B78108E
Mfr：EPCOS - TDK Electronics
Package：Cut Tape (CT),Tape & Box (TB)

SKU:011b3724778e Category: Fixed Inductors Brand: EPCOS - TDK Electronics

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Product introduction

B78108E1472K009 is listed in the Fixed Inductors range at ChipApex. The manufacturer field lists EPCOS - TDK Electronics. Its product description is FIXED IND 4.7UH 2.75A 85 MOHM TH. Review the specifications below when checking this part for your BOM.

Fixed Inductors specifications for B78108E1472K009

Description：FIXED IND 4.7UH 2.75A 85 MOHM TH
Series：B78108E
Mfr：EPCOS - TDK Electronics
Package：Cut Tape (CT),Tape & Box (TB)
Type：Drum Core, Wirewound
Material - Core：Ferrite
Inductance：4.7 µH
Tolerance：±10%
Current Rating (Amps)：2.75 A
Current - Saturation (Isat)：2.7A
Shielding：Unshielded
DC Resistance (DCR)：85mOhm Max
Q @ Freq：45 @ 7.96MHz
Frequency - Self Resonant：35MHz
Ratings：-
Operating Temperature：-55°C ~ 125°C
Inductance Frequency - Test：1 MHz
Mounting Type：Through Hole
Package / Case：Axial
Supplier Device Package：-
Size / Dimension：0.157" Dia x 0.374" L (4.00mm x 9.50mm)
Height - Seated (Max)：-
Features：-

Fixed Inductors datasheet and documents for B78108E1472K009

B78108E1472K009

Fixed Inductors Overview

The B78108E1472K009 is a fixed, unshielded wirewound inductor from the TDK B78108E series. It features a ferrite drum core and axial leads for through-hole mounting. The component has an inductance of 4.7 µH with a ±10% tolerance. It supports a maximum DC current of 2.75 A and a saturation current of 2.7 A. The maximum DC resistance is 85 mΩ. The Q factor is specified at 60 when tested at 7.96 MHz. The self-resonant frequency is 230 MHz. It operates within a temperature range of -55°C to +125°C.

Fixed Inductors Feature Summary

Unshielded wirewound construction with ferrite drum core
Axial leaded package designed for through-hole PCB mounting
High saturation current capability relative to rated DC current

Fixed Inductors Applications

RF choke circuits
VHF filtering applications
General purpose inductive components

Fixed Inductors Procurement Notes

Verify component authenticity and physical condition upon receipt, as this part is listed as End-of-Life (EOL). Confirm that the axial lead dimensions match the target PCB footprint before finalizing assembly plans. Check datasheet revisions for any marking or material changes documented in Product Change Notices. Ensure storage conditions comply with RoHS and REACH requirements.

Fixed Inductors Selection Notes

Select this component when a 4.7 µH inductance value is required for through-hole RF or VHF applications. Consider the 85 mΩ DC resistance and 2.75 A current rating for power handling needs. The unshielded design may require layout considerations to minimize electromagnetic interference coupling with nearby traces compared to shielded alternatives.

Fixed Inductors Part Context

This inductor belongs to the B78108E series manufactured by TDK Electronics, formerly EPCOS. The series comprises various fixed inductors optimized for radio frequency and very high frequency choke applications. These components utilize ferrite cores and are available in multiple inductance values and current ratings within the same axial form factor.