Wurth Elektronik Ferrite Ring EMI Suppression 28.5 mm, For: EMI Suppression 12.8 mm ID 26.6 mm OD
- RS Stock No.:
- 163-3217
- Mfr. Part No.:
- 74277290
- Manufacturer:
- Wurth Elektronik
Bulk discount available
View bulk pricing optionsSubtotal (1 tray of 88 units)*
€531.17
(exc. VAT)
€653.31
(inc. VAT)
Temporarily out of stock
- 88 unit(s) shipping from 26 October 2026
- Plus 88 unit(s) shipping from 29 January 2027
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit | Per Tray* |
|---|---|---|
| 88 - 352 | €6.036 | €531.17 |
| 440 - 792 | €5.433 | €478.10 |
| 880 + | €4.961 | €436.57 |
*price indicative
- RS Stock No.:
- 163-3217
- Mfr. Part No.:
- 74277290
- Manufacturer:
- Wurth Elektronik
Specifications
Technical data sheets
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Wurth Elektronik | |
| Sub Type | EMI Suppression | |
| Product Type | Ferrite Ring | |
| Minimum Frequency | 1MHz | |
| Application | EMI Suppression | |
| Impedance | 50Ω | |
| Material | Ferrite | |
| Maximum Frequency | 10MHz | |
| Height | 28.5mm | |
| Inside Diameter | 12.8mm | |
| Outside Diameter | 26.6mm | |
| Standards/Approvals | No | |
| Series | WE-AFB LFS | |
| Select all | ||
|---|---|---|
Brand Wurth Elektronik | ||
Sub Type EMI Suppression | ||
Product Type Ferrite Ring | ||
Minimum Frequency 1MHz | ||
Application EMI Suppression | ||
Impedance 50Ω | ||
Material Ferrite | ||
Maximum Frequency 10MHz | ||
Height 28.5mm | ||
Inside Diameter 12.8mm | ||
Outside Diameter 26.6mm | ||
Standards/Approvals No | ||
Series WE-AFB LFS | ||
- COO (Country of Origin):
- CN
Wurth Elektronik WE-AFB LFS Series Ferrite Ring, 1MHz to 10MHz Frequency Range, 50Ω Impedance - 74277290
This ferrite ring is a passive component designed to reduce electromagnetic interference on cable assemblies and signal lines within the 1MHz to 10MHz band. Constructed from ferrite material, it serves as a noise-suppression element in environments where conducted interference must be mitigated. The toroidal form factor supports through-hole or clip-on installation on cables and wiring looms for improved signal integrity.
Features and Benefits:
• 50Ω impedance provides effective attenuation of common-mode noise
• Operates across 1MHz to 10MHz for targeted EMI reduction
• Toroidal geometry aids a uniform magnetic path and suppression
• Ferrite material composition enhances high-frequency dissipation
• Compact profile supports integration into dense assemblies
• Operates across 1MHz to 10MHz for targeted EMI reduction
• Toroidal geometry aids a uniform magnetic path and suppression
• Ferrite material composition enhances high-frequency dissipation
• Compact profile supports integration into dense assemblies
Applications
• Suitable for suppression of cable-borne interference in electronics
• Used for reducing noise in power and signal harnesses
• Ideal for retrofit EMI filtering on external leads
• Can be used for decoupling in sensitive measurement circuits
• Used with communication lines to improve signal stability
• Used for reducing noise in power and signal harnesses
• Ideal for retrofit EMI filtering on external leads
• Can be used for decoupling in sensitive measurement circuits
• Used with communication lines to improve signal stability
What physical sizes define the component?
The component has an outside diameter of 26.6mm, an inside diameter of 12.8mm and a height of 28.5mm.
What is the intended impedance characteristic and its effect?
It exhibits 50Ω impedance, which increases attenuation of unwanted currents within its operating frequency range.
Which frequency band does it target for suppression?
It is specified to perform between 1MHz and 10MHz for EMI mitigation.
What material is used and why is that relevant?
It is MADE from ferrite, chosen for its magnetic loss properties that dissipate high-frequency interference.
In what applications is this sub-type typically classified?
It is categorised for EMI suppression applications where toroidal noise control is required.
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