Wurth Elektronik 1.2 mH 3 A Common Mode Choke 0.04 Ω 250V ac

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MYR21.03

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RS Stock No.:
904-0379
Distrelec Article No.:
301-88-785
Mfr. Part No.:
7446723001
Manufacturer:
Wurth Elektronik
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Brand

Wurth Elektronik

Product Type

Common Mode Choke

Inductance

1.2mH

Series

WE-LF

Maximum DC Current

3A

Impedance

40mΩ

Packaging

Tray & Carton

Test Frequency

10kHz

Minimum Operating Temperature

-40°C

Maximum Operating Temperature

125°C

Number of Lines

2

Automotive Standard

No

Pin Count

4

Mount Type

Through Hole

Choke Voltage

250V ac

Inductance Tolerance

±30 %

Standards/Approvals

RoHS, REACH, VDE, ENEC

Maximum DC Resistance

0.04Ω

Height

14.5mm

Wurth Elektronik WE-LF Series Common Mode Choke, 1.2 Mh Inductance, 250V AC Choke Voltage - 7446723001


This common mode choke is a two-line EMI suppression component designed for through-hole mounting and intended to reduce interference in AC circuits. It operates across a wide temperature range and is supplied in tray packaging for handling in production environments. The part meets multiple regulatory standards and is rated for moderate current applications.

Features and Benefits:


• ±30% inductance tolerance provides predictable attenuation performance
• 3A maximum DC current enables moderate power line use
• 40mΩ impedance supports effective common-mode suppression
• 0.04 Ω maximum DC resistance minimises insertion loss
• 125°C maximum operating temperature allows high-temperature operation

Applications


• Suitable for mains EMI suppression in consumer equipment
• Ideal for filtering two-conductor power lines
• Used with switch-mode power supplies for noise reduction
• Can be used for industrial control panels requiring high temperature stability

What mounting method does it require?


It is designed for through-hole mounting and uses four pins for board attachment.

How is impedance defined for testing?


Impedance is specified at 40mΩ with a test frequency of 10kHz for performance characterisation.

Which environmental limits should be observed?


Operating temperatures range from -40°C to 125°C to ensure correct functionality.

How is the product packaged for shipment?


Components are supplied in trays and cartoned for handling and storage.

Which approvals accompany the component?


It holds RoHS, REACH, VDE and ENEC approvals.

Approvals

UL

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