7447745039

$0.91

Description：FIXED IND 3.9UH 2.8A 54 MOHM SMD
Series：WE-PD2
Mfr：Würth Elektronik
Package：Tape & Reel (TR)

SKU:3490e025a3e9 Category: Fixed Inductors Brand: Würth Elektronik

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Product introduction

7447745039 is listed in the Fixed Inductors range at ChipApex. The manufacturer field lists Würth Elektronik. Its product description is FIXED IND 3.9UH 2.8A 54 MOHM SMD. Review the specifications below when checking this part for your BOM.

Fixed Inductors specifications for 7447745039

Description：FIXED IND 3.9UH 2.8A 54 MOHM SMD
Series：WE-PD2
Mfr：Würth Elektronik
Package：Tape & Reel (TR)
Type：Drum Core, Wirewound
Material - Core：Ferrite
Inductance：3.9 µH
Tolerance：±20%
Current Rating (Amps)：2.8 A
Current - Saturation (Isat)：2.6A
Shielding：Unshielded
DC Resistance (DCR)：54mOhm Max
Q @ Freq：-
Frequency - Self Resonant：48MHz
Ratings：-
Operating Temperature：-40°C ~ 125°C
Inductance Frequency - Test：100 kHz
Mounting Type：Surface Mount
Package / Case：Nonstandard
Supplier Device Package：-
Size / Dimension：0.228" L x 0.205" W (5.80mm x 5.20mm)
Height - Seated (Max)：0.091" (2.30mm)
Features：-

Fixed Inductors datasheet and documents for 7447745039

7447745039

Fixed Inductors Overview

The Würth Elektronik 7447745039 is an unshielded surface-mount power inductor from the WE-PD2 series. It features a ferrite core and wirewound construction with standard termination. Key electrical parameters include an inductance of 3.9 µH with a 20% tolerance, a maximum DC current rating of 2.8 A, and a saturation current of 2.6 A. The component exhibits a maximum DC resistance of 54 mOhms and a self-resonant frequency of 10 MHz. It operates within a temperature range of -40°C to +125°C and measures 5.8 mm in length, 5.2 mm in width, and 4.5 mm in height.

Fixed Inductors Feature Summary

Unshielded design utilizing a ferrite core for magnetic field management
Wirewound construction optimized for power choke applications
Surface-mount package suitable for automated PCB assembly

Fixed Inductors Applications

Power supply filtering circuits
DC-DC converter input/output stages
General power electronics signal conditioning

Fixed Inductors Procurement Notes

Verify the specific manufacturer part number against official Wurth Elektronik documentation to ensure accuracy. Confirm that the unshielded configuration aligns with electromagnetic interference requirements for the target application. Check RoHS compliance status through official datasheets or product pages before finalizing procurement decisions.

Fixed Inductors Selection Notes

Select this component when an unshielded inductor is required for cost-sensitive or space-constrained designs where magnetic shielding is not critical. Ensure the 2.8 A current rating and 2.6 A saturation limit meet the circuit's peak load demands. Consider the 54 mOhms DCR for efficiency calculations in low-voltage power paths.

Fixed Inductors Part Context

This component belongs to the WE-PD2 series of power chokes manufactured by Wurth Elektronik. The series focuses on surface-mount power inductors designed for general-purpose electronic applications. The WE-PD2 line offers various inductance values and current ratings to support diverse power management architectures.