Wurth Elektronik, WE-SL5 Surface Mount Common Mode Line Filter with a Ferrite Core, 250 μH Sectional Winding ±40 % 2 A
- RS Stock No.:
- 500-3284
- Distrelec Article No.:
- 304-34-202
- Mfr. Part No.:
- 744272251
- Brand:
- Wurth Elektronik
Bulk discount available
View bulk pricing optionsSubtotal (1 pack of 5 units)*
£12.55
(exc. VAT)
£15.05
(inc. VAT)
FREE delivery for orders over £60.00
In Stock
- 5 unit(s) ready to ship
- Plus 3,630 unit(s) shipping from 02 November 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit | Per Pack* |
|---|---|---|
| 5 - 45 | £2.51 | £12.55 |
| 50 - 245 | £2.256 | £11.28 |
| 250 - 495 | £2.078 | £10.39 |
| 500 - 995 | £1.932 | £9.66 |
| 1000 + | £1.808 | £9.04 |
*price indicative
- RS Stock No.:
- 500-3284
- Distrelec Article No.:
- 304-34-202
- Mfr. Part No.:
- 744272251
- Brand:
- Wurth Elektronik
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Wurth Elektronik | |
| Product Type | Surface Mount Common Mode Line Filter | |
| Inductance | 250μH | |
| Maximum DC Current | 2A | |
| Length | 10mm | |
| Packaging | Tape & Reel | |
| Automotive Standard | AEC-Q200 | |
| Pin Count | 4 | |
| Minimum Operating Temperature | -40°C | |
| Maximum DC Resistance | 35mΩ | |
| Inductance Tolerance | ±40 % | |
| Series | WE-SL5 | |
| Maximum Operating Temperature | 125°C | |
| Standards/Approvals | RoHS, UL-94 V-0 | |
| Core Material | Ferrite | |
| Height | 6.5mm | |
| Depth | 8.7mm | |
| Termination Style | Surface Mount | |
| Maximum Self Resonant Frequency | 100kHz | |
| Inductor Construction | Sectional Winding | |
| Select all | ||
|---|---|---|
Brand Wurth Elektronik | ||
Product Type Surface Mount Common Mode Line Filter | ||
Inductance 250μH | ||
Maximum DC Current 2A | ||
Length 10mm | ||
Packaging Tape & Reel | ||
Automotive Standard AEC-Q200 | ||
Pin Count 4 | ||
Minimum Operating Temperature -40°C | ||
Maximum DC Resistance 35mΩ | ||
Inductance Tolerance ±40 % | ||
Series WE-SL5 | ||
Maximum Operating Temperature 125°C | ||
Standards/Approvals RoHS, UL-94 V-0 | ||
Core Material Ferrite | ||
Height 6.5mm | ||
Depth 8.7mm | ||
Termination Style Surface Mount | ||
Maximum Self Resonant Frequency 100kHz | ||
Inductor Construction Sectional Winding | ||
- COO (Country of Origin):
- CN


Wurth Elektronik WE-SL5 Series Surface Mount Common Mode Line Filter, 250μh Inductance, 2A Maximum DC Current - 744272251
This surface-mount common-mode line filter is designed to suppress differential and common‑mode interference in Compact electronic assemblies. It operates across a wide ambient range suitable for harsh conditions and is intended for high-density SMT implementations where low-loss, Compact EMI suppression is required. The component is assembled with a ferrite core and sectional winding to provide stable performance in regulated environments.
Features and Benefits:
• 250μH inductance limits high-frequency common‑mode noise
• 2A current rating supports moderate DC applications
• 35mΩ low DC resistance reduces insertion loss
• ±40% tolerance accommodates varied design margins
• Ferrite core and sectional winding provide effective suppression
• 2A current rating supports moderate DC applications
• 35mΩ low DC resistance reduces insertion loss
• ±40% tolerance accommodates varied design margins
• Ferrite core and sectional winding provide effective suppression
Applications
• Suitable for automotive signal-line noise reduction
• Ideal for power-line EMI suppression in control modules
• Used with Compact power supplies for conducted emission control
• Can be used for communication-line filtering in embedded systems
• Ideal for power-line EMI suppression in control modules
• Used with Compact power supplies for conducted emission control
• Can be used for communication-line filtering in embedded systems
What temperature extremes can this component withstand?
It functions across an operating range from -40°C to 125°C.
How is the component packaged for automated assembly?
It is supplied on tape and reel to support SMT pick-and-place processes.
What flame retardance rating applies to the housing material?
The device meets UL‑94V‑0 requirements for flammability performance.
Does the component comply with automotive testability standards?
It conforms to AEC‑Q200, indicating suitability for automotive applications.
What is the construction style of the inductor windings?
The winding is a sectional design delivering four-pin connectivity.
Related links
- Wurth Elektronik 250 μH Sectional Winding ±40 % 2 A
- Wurth Elektronik 1 mH Sectional Winding ±40 % 950 mA
- Wurth Elektronik 120 μH Sectional Winding ±40 % 2.5 A
- Wurth Elektronik 220 μH Sectional Winding ±40 % 2.2 A
- Wurth Elektronik 470 μH Sectional Winding ±40 % 1.6 A
- Wurth Elektronik 744273 Unshielded Surface Mount Common Mode Line Filter with a Ferrite Core, 9 μH Sectional
- Wurth Elektronik 744273 Unshielded Surface Mount Common Mode Line Filter with a Ferrite Core, 5 μH Sectional
- Wurth Elektronik 4.7 mH Dual ±40 % 350 mA Idc
