Wurth 20 mH ±30% Common Mode Choke, 500mA Idc, 540mΩ Rdc 250 V ac, WE-CMB
- RS Stock No.:
- 163-3388
- Mfr. Part No.:
- 744822120
- Brand:
- Wurth Elektronik
Subtotal (1 box of 140 units)*
£397.60
(exc. VAT)
£477.40
(inc. VAT)
FREE delivery for orders over £50.00
Temporarily out of stock
- Shipping from 12 February 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit | Per Box* |
|---|---|---|
| 140 + | £2.84 | £397.60 |
*price indicative
- RS Stock No.:
- 163-3388
- Mfr. Part No.:
- 744822120
- 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 | |
| Inductance | 20 mH | |
| Maximum DC Current | 500mA | |
| Mounting Type | Radial | |
| Maximum DC Resistance | 540mΩ | |
| Tolerance | ±30% | |
| Length | 17.5mm | |
| Depth | 13mm | |
| Height | 22mm | |
| Dimensions | 17.5 x 13 x 22mm | |
| Lead Pitch | 7.7mm | |
| Series | WE-CMB | |
| Minimum Operating Temperature | -40°C | |
| Maximum Operating Temperature | +125°C | |
| Lead Diameter | 0.7mm | |
| Terminal Type | Through Hole | |
Select all | ||
|---|---|---|
Brand Wurth Elektronik | ||
Inductance 20 mH | ||
Maximum DC Current 500mA | ||
Mounting Type Radial | ||
Maximum DC Resistance 540mΩ | ||
Tolerance ±30% | ||
Length 17.5mm | ||
Depth 13mm | ||
Height 22mm | ||
Dimensions 17.5 x 13 x 22mm | ||
Lead Pitch 7.7mm | ||
Series WE-CMB | ||
Minimum Operating Temperature -40°C | ||
Maximum Operating Temperature +125°C | ||
Lead Diameter 0.7mm | ||
Terminal Type Through Hole | ||
- COO (Country of Origin):
- VN
Wurth WE-CMB XS, M and XL Series Common Mode Chokes
From Wurth Elektronik, the WE-CMB series of common modes chokes are a compact solution delivering high suppression of asymmetrical interferences, even at low frequency ranges. WE-CMB series common mode chokes offer the highest possible current for their ultra compact size. WE-CMB common mode chokes feature broadband screening due to the anti-capacitance coiling technique that has been incorporated into the design.
Features and Benefits:
Compact design
Climatic category: 40/125/21
IEC 60938-2
Flammability: UL 49 V-0
Wide operating temperature range of -40°C to +125°C
Product Applications:
WE-CMB common mode chokes are ideal for the suppression of common mode noise and the suppression of radio interferences in motors. Suitable applications include power line in and output filters, power electronics and the filtering of devices lacking a ground connection.
Wurth Leaded Inductors (Chokes)
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