Wurth Elektronik Openable, Diameter 21 mm Ferrite Sleeve, Apertures: 1 Key 56 mm 47 mm 43 mm, For EMI Suppression
- RS Stock No.:
- 923-6163
- Distrelec Article No.:
- 301-65-029
- Mfr. Part No.:
- 74271211
- Brand:
- Wurth Elektronik
Bulk discount available
View bulk pricing optionsSubtotal (1 unit)*
Kr. 211,87
(exc. VAT)
Kr. 264,84
(inc. VAT)
FREE delivery for online orders over 750,00 kr
In Stock
- 187 unit(s) ready to ship
- Plus 47 unit(s) ready to ship from another location
- Plus 299 unit(s) shipping from 22 October 2026
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Units | Per unit |
|---|---|
| 1 - 4 | Kr. 211,87 |
| 5 - 9 | Kr. 203,29 |
| 10 - 24 | Kr. 192,99 |
| 25 - 49 | Kr. 177,89 |
| 50 + | Kr. 158,79 |
*price indicative
- RS Stock No.:
- 923-6163
- Distrelec Article No.:
- 301-65-029
- Mfr. Part No.:
- 74271211
- 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 | |
| Sub Type | Snap Ferrite | |
| Series | STAR-TEC | |
| Product Type | Ferrite Sleeve | |
| Application | EMI Suppression | |
| Material | 4W620 | |
| Impedance at 25 MHz | 210Ω | |
| Key | Yes | |
| Openable | Yes | |
| Impedance at 100 MHz | 335Ω | |
| Aperture Diameter | 21mm | |
| Number of Apertures | 1 | |
| External Depth | 56mm | |
| External Width | 43mm | |
| External Height | 47mm | |
| Standards/Approvals | REACh, RoHS | |
| Select all | ||
|---|---|---|
Brand Wurth Elektronik | ||
Sub Type Snap Ferrite | ||
Series STAR-TEC | ||
Product Type Ferrite Sleeve | ||
Application EMI Suppression | ||
Material 4W620 | ||
Impedance at 25 MHz 210Ω | ||
Key Yes | ||
Openable Yes | ||
Impedance at 100 MHz 335Ω | ||
Aperture Diameter 21mm | ||
Number of Apertures 1 | ||
External Depth 56mm | ||
External Width 43mm | ||
External Height 47mm | ||
Standards/Approvals REACh, RoHS | ||
- COO (Country of Origin):
- DE
Wurth Elektronik STAR-TEC Series Ferrite Sleeve, 21mm Aperture, 56mm External Depth - 74271211
This ferrite sleeve is an openable snap-type core designed to reduce electromagnetic interference on cable runs. It is manufactured from 4W620 material and intended for in-line suppression tasks where a removable ferrite core is required. The component is suitable for installation around single conductors to improve signal integrity in assemblies that demand detachable EMI suppression.
Features and Benefits:
• 210Ω impedance at 25MHz for targeted low-frequency attenuation
• 335Ω impedance at 100MHz for higher-frequency noise reduction
• Single-aperture design for straightforward cable placement
• Openable snap form for Rapid installation and removal
• Conforms to RoHS and REACH for regulated material content
• 335Ω impedance at 100MHz for higher-frequency noise reduction
• Single-aperture design for straightforward cable placement
• Openable snap form for Rapid installation and removal
• Conforms to RoHS and REACH for regulated material content
Applications
• Suitable as an EMI suppression sleeve for cables in electronic racks
• Can be used as a removable ferrite core for EMI shielding during testing
• Used with power and signal leads to act as a ferrite choke 210Ω @25MHz
• Ideal for retrofit noise mitigation using a snap ferrite core with a 21mm aperture
• Can be used as a removable ferrite core for EMI shielding during testing
• Used with power and signal leads to act as a ferrite choke 210Ω @25MHz
• Ideal for retrofit noise mitigation using a snap ferrite core with a 21mm aperture
How does the product attach to a cable?
It uses a Snap-on ferrite clamp mechanism that secures around a single conductor via its split, openable body.
What size of cable or bundle will pass through the aperture?
The central hole measures 21mm in diameter, allowing a single cable or small bundled conductors of comparable overall thickness.
Which materials and approvals are relevant for regulatory checks?
The component is MADE from 4W620 ferrite material and meets RoHS and REACH substance requirements.
What external envelope should be allowed for panel or chassis clearance?
The outer dimensions are 56mm depth, 47mm height and 43mm width, informing required mounting clearance.
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