Wurth Elektronik, WELQ 1812 Surface Mount Inductor with a Ferrite Core, 3.9 μH 1.32 A Idc Q:40

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Subtotal (1 tape of 10 units)*

£6.95

(exc. VAT)

£8.34

(inc. VAT)

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  • Plus 140 unit(s) shipping from 20 April 2026
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Per Tape*
10 - 90£0.695£6.95
100 - 490£0.563£5.63
500 - 990£0.43£4.30
1000 +£0.393£3.93

*price indicative

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RS Stock No.:
548-604
Mfr. Part No.:
7440450039
Brand:
Wurth Elektronik
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Brand

Wurth Elektronik

Inductance

3.9μH

Product Type

Surface Mount Inductor

Maximum DC Current

1.32A

Packaging

Tape & Reel

Length

4.5mm

Automotive Standard

No

Maximum DC Resistance

0.14Ω

Minimum Operating Temperature

-40°C

Series

WELQ 1812

Maximum Operating Temperature

125°C

Core Material

Ferrite

Diameter

2.9mm

Depth

2.9mm

Termination Style

Package

Standards/Approvals

REACH, RoHS, Halogen-Free

Height

2.9mm

Minimum Quality Factor

40

Inductor Construction

Wirewound

COO (Country of Origin):
CN
The Wurth Elektronik SMT Inductor is a miniature chip inductor wound on a specialized ferrite core, designed for compact circuits requiring low power operation. With an operating temperature range of –40°C to +125°C, it is suitable for various applications, including low power DC/DC converters. Its robust design and compact size make it ideal for modern electronic devices requiring reliable and efficient inductive components.

Small inductances for compact circuits

High Q at high frequencies

Low DC resistance

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