Wurth Elektronik Openable Ferrite Sleeve, 43 x 20 x 32mm

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

STAR-RING Snap Ferrite with Security Lock

STAR-RING snap ferrite sleeves from Wurth Elektronik feature a prefixing cable system that ensures a quick and easy cable assembly process. A security lock prevents unauthorised removal of the snap ferrite from the cable. The use of this key technology allows STAR-RING ferrite sleeves to be reusable, ideal for cables with difficult access or for test and measurement purposes. Suitable applications include external and internal computer power and data cables

Please note, the STAR-TEC key (74721) is sold separately. Refer to 815-0021 to order the key.

UL94-V0 plastic casing
Simple attachment to cables that are already installed or provided with plug connectors
Improved plastic housing with new snap lock for increased contact pressure
Reliable and long-lasting special locking feature easy to open with appropriate key
Higher impedance values broad band up to 1 GHz
Extra eye for screw attachment
Flat housing for attachment with double-sided adhesive tape


Protection from HF interference on power supply line, interface cables for computers, network components, digital cameras, DVD, video equipments and measurement/control/regulating segments

Part no. Imp.
25 MHz
1 winding
100 MHz
25 MHz
2 windings
100 MHz
Max. cable Ø Dimensions: Length (mm) Dimensions: Width (mm) Height 20
7427151 64 Ω 119 Ω 242 Ω 443 Ω 14.5 mm 30 20 29 74271
7427153 83 Ω 165 Ω 304 Ω 572 Ω 8 mm 40 20 19 74271
7427154 71 Ω 130 Ω 271 Ω 495 Ω 16 mm 43 20 32 74271
7427155 142 Ω 327 Ω 205 Ω 401 Ω 27 mm 55 20 44 74271

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.

Attribute Value
Type Split Core
Application For Mounting On Circuit Boards Midget Blind Rivet, Internal and External Computer Data and Power Cable, Perfect For Cables With Difficult Access Because Of Easy Installation and Removal
Material 4W620
Key No
Openable Yes
Impedance at 100 MHz 130Ω
Outer Dimensions 43 x 20 x 32mm
Aperture Diameter 16mm
Number of Apertures 1
Outer Depth 20mm
Outer Height 32mm
Outer Width 43mm
407 In stock for FREE next working day delivery
Price Each
£ 5.41
(exc. VAT)
£ 6.49
(inc. VAT)
Per unit
1 - 9
10 - 49
50 - 99
100 - 199
200 +
Packaging Options: