Wurth Elektronik Openable, Diameter 21 mm Ferrite Sleeve, Apertures: 1 Key 56 mm 47 mm 43 mm, For EMI Suppression
- RS Stock No.:
- 923-6166
- Distrelec Article No.:
- 301-65-030
- Mfr. Part No.:
- 74271211S
- Brand:
- Wurth Elektronik
Bulk discount available
Subtotal (1 unit)*
£17.56
(exc. VAT)
£21.07
(inc. VAT)
FREE delivery for orders over £60.00
In Stock
- 2 unit(s) ready to ship
- Plus 37 unit(s) ready to ship from another location
- Plus 46 unit(s) shipping from 28 April 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 - 4 | £17.56 |
| 5 - 9 | £16.86 |
| 10 - 24 | £15.98 |
| 25 - 49 | £14.77 |
| 50 + | £13.17 |
*price indicative
- RS Stock No.:
- 923-6166
- Distrelec Article No.:
- 301-65-030
- 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 | |
| Series | STAR-TEC | |
| Sub Type | Snap Ferrite | |
| Product Type | Ferrite Sleeve | |
| Application | EMI Suppression | |
| Material | 4W620 | |
| Key | Yes | |
| Impedance at 25 MHz | 180Ω | |
| Openable | Yes | |
| Impedance at 100 MHz | 350Ω | |
| Aperture Diameter | 21mm | |
| Number of Apertures | 1 | |
| External Depth | 56mm | |
| External Width | 43mm | |
| External Height | 47mm | |
| Standards/Approvals | RoHS, REACH | |
| Select all | ||
|---|---|---|
Brand Wurth Elektronik | ||
Series STAR-TEC | ||
Sub Type Snap Ferrite | ||
Product Type Ferrite Sleeve | ||
Application EMI Suppression | ||
Material 4W620 | ||
Key Yes | ||
Impedance at 25 MHz 180Ω | ||
Openable Yes | ||
Impedance at 100 MHz 350Ω | ||
Aperture Diameter 21mm | ||
Number of Apertures 1 | ||
External Depth 56mm | ||
External Width 43mm | ||
External Height 47mm | ||
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
- Wurth Elektronik Openable Apertures: 1 Key
- Wurth Elektronik Openable Apertures: 1 Key Midget Blind Rivet External Power
- Wurth Elektronik Openable Apertures: 1 Key Internal
- Wurth Elektronik Openable Apertures: 1 Key Midget Blind Rivet
- Wurth Elektronik Openable Apertures: 1 Key Computer Data, Circuit Board
- Wurth Elektronik Openable Apertures: 1 Key External Power Cables Midget Blind
- Wurth Elektronik Openable Ferrite Sleeve Key 56 mm 43 mm Diameter 21 mm

