Wurth Elektronik WE-LF Drosselspule, 39 mH 400mA 18.5mm / ±30%
Lifecycle: Active Supply Risk Score and Supply Risk Trend are available on Pro and Enterprise. Watchlist (Pro)
Datasheets:Datasheet (Farnell)
Country of origin: THRoHS Compliant MSL MSL 1

Farnell(1/4)
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View PlansConfirmed Stock
21,701
3 of 5 suppliers stocked
Best Unit Price
—
Availability
3of 5 suppliers
Fastest delivery: 210 days
Shortest factory lead: 30 weeks
Stock by Supplier
Stock & Availability
| Supplier | Supplier Part Number | Stock | Delivery | Factory Lead | MOQ | Packaging | Status |
|---|---|---|---|---|---|---|---|
7446120039 | 21,550 | 210 days | — | Minimum order quantity 1Order multiple 100 | In Stock | ||
| 122 | — | 30 weeks | Minimum order quantity 1Order multiple 100 | Tray | In Stock | ||
| 29 | 210 days | — | Minimum order quantity 1 | — | In Stock | ||
| 0 | — | — | Minimum order quantity 100 | BX | No Stock | ||
| 0 | — | — | Minimum order quantity 1 | BG | No Stock |
Supplier Part Details
| Supplier | Description | RoHS | MSL | Life Cycle | SVHC | Category | Country | Weight | Tariff Code | Packaging | Links |
|---|---|---|---|---|---|---|---|---|---|---|---|
Würth Elektronik 7446120039 | WE-LF Common Mode Power Line Choke | No | MSL 1 | Active | — | EMC Components | TH | 5 g | 85045000900 (EU national) | ||
RS 1633287 | Wurth Elektronik WE-LF Drosselspule, 39 mH 400mA 18.5mm / ±30% | Yes | — | — | — | — | — | — | — | BX | |
Farnell 1748632 | WURTH ELEKTRONIK - 7446120039 - Gleichtaktdrossel, stromkompensierte Drossel, Netzdrossel, 39mH, 400mA, Baureihe WE-LF | Yes | — | Active | Triphenyl Phosphate (04-Feb-2026) | — | TH | — | 85045000 (EU CN) | — | |
Mouser 710-7446120039 | Common Mode Chokes / Filters WE-LF Type SV 39mH .4A 1.7Ohm | Yes | — | — | — | Common Mode Chokes / Filters | — | 0.005 g | 8541100000 | Tray | |
RS 3873621P | Wurth Elektronik WE-LF Drosselspule, 39 mH 400mA 18.5mm / ±30% | — | — | — | — | — | — | — | — | BG |
Technical Attributes
Climatic Category40/125/21
Component QualificationAEC-Q200 Grade 1
Date-CodeWWYY
DC Resistance1.7Ohm
DC Resistance [1]1.7Ohm
ENEC 10 Approval40042531
Halogen Free ApprovalIEC 61249-2-21
Halogen Free ApprovalConform
Halogen Free ApprovalConform
Halogen Free ApprovalJEDEC JS709B
Height0.0198Meter
Inductance0.039Henry
Inductance [1]0.039Henry
Insulation Test Voltage1500Volt
IR-Code (Rated Current)0.4A
L-Code (Inductance)39mH
Length0.018Meter
Life Cycle TimeEstimated lifetime > 10 years
Marketing ChangesHole Pattern changed
Marking7446120039 - 39mH/ 0.4A
MaterialMnZn
Max. Operating Temperature125Degree Celsius
Min. Operating Temperature-40Degree Celsius
MountTHT
Number of windings2
Operating Temperature-40 °C up to +125 °C
Pad to Pad (Middle)0.015Meter
Pad to Pad (Middle)0.01Meter
Pin Diameter0.0006Meter
Pin Hole Diameter0.0011Meter
Pin length0.003Meter
Pins4
PN-Code7446120039
ProGra Release NoteNEW PCN | 03.07.2025 | Gul Gulsen
Rated Current0.4Ampere
Rated Current [1]0.4Ampere
Rated Voltage250Volt
REACh Approval(EC)1907/2006
REACh ApprovalConform or declared
Relative Humidity75Percentage/Relativehumidity
SizeSV
StatusValid
VDE Approval40042531
VersionTHT
Width0.0128Meter