Wurth Elektronik Openable, Diameter 21 mm Ferrite Sleeve, Apertures: 1 Key 56 mm 47 mm 43 mm, For EMI Suppression
- RS Stock No.:
- 163-8201
- Mfr. Part No.:
- 74271211S
- Brand:
- Wurth Elektronik
Bulk discount available
View bulk pricing optionsSubtotal (1 box of 20 units)*
£257.20
(exc. VAT)
£308.60
(inc. VAT)
FREE delivery for orders over £60.00
In Stock
- 240 unit(s) ready to ship
- Plus 20 unit(s) shipping from 14 August 2026
- Plus 120 unit(s) shipping from 04 September 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit | Per Box* |
|---|---|---|
| 20 - 20 | £12.86 | £257.20 |
| 40 + | £12.346 | £246.92 |
*price indicative
- RS Stock No.:
- 163-8201
- Mfr. Part No.:
- 74271211S
- 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 | |
| Product Type | Ferrite Sleeve | |
| Series | STAR-TEC | |
| Application | EMI Suppression | |
| Material | 4W620 | |
| Impedance at 25 MHz | 180Ω | |
| Key | Yes | |
| Openable | Yes | |
| Impedance at 100 MHz | 350Ω | |
| Aperture Diameter | 21mm | |
| Number of Apertures | 1 | |
| External Depth | 56mm | |
| External Height | 47mm | |
| External Width | 43mm | |
| Standards/Approvals | RoHS, REACH | |
| Select all | ||
|---|---|---|
Brand Wurth Elektronik | ||
Sub Type Snap Ferrite | ||
Product Type Ferrite Sleeve | ||
Series STAR-TEC | ||
Application EMI Suppression | ||
Material 4W620 | ||
Impedance at 25 MHz 180Ω | ||
Key Yes | ||
Openable Yes | ||
Impedance at 100 MHz 350Ω | ||
Aperture Diameter 21mm | ||
Number of Apertures 1 | ||
External Depth 56mm | ||
External Height 47mm | ||
External Width 43mm | ||
Standards/Approvals RoHS, REACH | ||
- COO (Country of Origin):
- DE
Split Ferrite Sleeves in Plastic Shell with Snap-In Lock
STAR-TEC snap ferrites from Wurth Elektronik feature cable pinch protection, and are easy to open for measurement purposes. A prefixing cable system ensures a simple cable assembly process and a security lock prevents unauthorised removal of the ferrite from the cable. Please note, the safety key (74271) is sold separately. Refer to 815-0021 to order the key.
Suitable applications for these ferrite sleeves include internal and external computer data and power cables. Easy to remove, and featuring straightforward installation, these ferrites are ideal for cables that are difficult to access.
Housing has no projecting parts
Key sold separately
UL94-V0 plastic case
Split Ferrite Rings
These split ferrite cores reduce the electromagnetic interference from being induced in or radiated from data and power cables. High attenuation ratings are achieved with the housing design and the special process steps during the ferrite manufacture. The special snap lock makes the ferrite sleeve suitable for use with a variety of cable diameters and once the split ferrite is locked it cannot be opened accidentally.The outer housing is designed to protect the halves of the core from breakage and ensures simple assembly on to cables that are already installed or which have been fitted with connectors. Fixing to the cable with glue or cable tie is optional. Typical applications for these split ferrite cores include data or power lines used in computer technology, terminals, industrial controllers, medical engineering and office machines.
Related links
- Wurth Elektronik Openable Apertures: 1 Key 56 mm 47 mm 43 mm, For EMI Suppression
- Wurth Elektronik Openable Apertures: 1 Key 56 mm 43 mm 47 mm
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- Wurth Elektronik Openable Apertures: 1 Key 39 mm 35 mm 49 mm, For EMI Suppression
- Wurth Elektronik Openable Apertures: 1 Key 60 mm 55 mm 62 mm, For EMI Suppression
- Wurth Elektronik Openable Apertures: 1 Key 24.5 mm 21 mm 40.5 mm, For Safety Relevant
- Wurth Elektronik Openable Apertures: 1 Key 19.6 mm 16 mm 84.5 mm, For Medical
- Wurth Elektronik Openable Apertures: 1 Key 31 mm 28 mm 35.1 mm, For General

