WE-STAR-TEC LFS

Characteristics

  • With reliable flexible cable fixing, developed in-house
  • Prefixing cable system facilitates the cable assembling process
  • Cable clamping protection
  • Internal security locking system with key technology WE-STAR-KEY (safety key) prevents unauthorized removing from the cable
  • One key in each sample shipment
  • Classification of the plastic housing: UL94 V-0
  • Operating temperature: –50 °C to +105 °C
  • Core material: MnZn

Applications

  • Especially for applications in the low frequency range from 300 kHz to 30 MHz
  • Perfect for applications with varying cable diameter
  • Suppression of electronic ballasts (i.e. neon tube) in the lighting industry
  • Reusable thanks to STAR-KEY technology, ideal for testing and measuring purposes in EMC laboratories
  • Fastening for round cables with diameter 2.0 mm to 25.0 mm or if winded more turns through the ferrite

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Ø Cable(mm)
Z @ 300 kHz
1 turn
(Ω)
Z @ 1 MHz
1 turn
(Ω)
Z @ 10 MHz
1 turn
(Ω)
Material
L(mm)
W(mm)
H(mm)
Color
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
SamplesAvailability & Sample
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WE-STAR-TEC LFS
74272140
SPEC2 - 3, 5 Ω, 17 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 2 - 3
Impedance @ 300 kHz 1 turn5 Ω
Impedance @ 1 MHz 1 turn17 Ω
Impedance @ 10 MHz 1 turn59 Ω
Material8 W 5000 
Length32.6 mm
Width19 mm
Height13 mm
Plastic Housing ColorGrey 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272140S
SPEC2 - 3, 5 Ω, 17 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 2 - 3
Impedance @ 300 kHz 1 turn5 Ω
Impedance @ 1 MHz 1 turn17 Ω
Impedance @ 10 MHz 1 turn59 Ω
Material8 W 5000 
Length32.6 mm
Width19 mm
Height13 mm
Plastic Housing ColorBlack 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272142
SPEC3.5 - 5, 5 Ω, 17 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 3.5 - 5
Impedance @ 300 kHz 1 turn5 Ω
Impedance @ 1 MHz 1 turn17 Ω
Impedance @ 10 MHz 1 turn59 Ω
Material8 W 5000 
Length32.6 mm
Width19 mm
Height13 mm
Plastic Housing ColorGrey 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272111
SPEC3.5 - 5, 10 Ω, 35 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 3.5 - 5
Impedance @ 300 kHz 1 turn10 Ω
Impedance @ 1 MHz 1 turn35 Ω
Impedance @ 10 MHz 1 turn59 Ω
Material8 W 5000 
Length41 mm
Width23.4 mm
Height18 mm
Plastic Housing ColorGrey 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272142S
SPEC3.5 - 5, 5 Ω, 17 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 3.5 - 5
Impedance @ 300 kHz 1 turn5 Ω
Impedance @ 1 MHz 1 turn17 Ω
Impedance @ 10 MHz 1 turn59 Ω
Material8 W 5000 
Length32.6 mm
Width19 mm
Height13 mm
Plastic Housing ColorBlack 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272111S
SPEC3.5 - 5, 10 Ω, 35 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 3.5 - 5
Impedance @ 300 kHz 1 turn10 Ω
Impedance @ 1 MHz 1 turn35 Ω
Impedance @ 10 MHz 1 turn59 Ω
Material8 W 5000 
Length41 mm
Width23.4 mm
Height18 mm
Plastic Housing ColorBlack 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272112
SPEC4.5 - 6, 10 Ω, 35 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 4.5 - 6
Impedance @ 300 kHz 1 turn10 Ω
Impedance @ 1 MHz 1 turn35 Ω
Impedance @ 10 MHz 1 turn59 Ω
Material8 W 5000 
Length41 mm
Width23.4 mm
Height18 mm
Plastic Housing ColorGrey 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272112S
SPEC4.5 - 6, 10 Ω, 35 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 4.5 - 6
Impedance @ 300 kHz 1 turn10 Ω
Impedance @ 1 MHz 1 turn35 Ω
Impedance @ 10 MHz 1 turn59 Ω
Material8 W 5000 
Length41 mm
Width23.4 mm
Height18 mm
Plastic Housing ColorBlack 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272131
SPEC6 - 7.5, 9 Ω, 30 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 6 - 7.5
Impedance @ 300 kHz 1 turn9 Ω
Impedance @ 1 MHz 1 turn30 Ω
Impedance @ 10 MHz 1 turn45 Ω
Material8 W 5000 
Length40 mm
Width24 mm
Height20 mm
Plastic Housing ColorGrey 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272131S
SPEC6 - 7.5, 9 Ω, 30 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 6 - 7.5
Impedance @ 300 kHz 1 turn9 Ω
Impedance @ 1 MHz 1 turn30 Ω
Impedance @ 10 MHz 1 turn45 Ω
Material8 W 5000 
Length40 mm
Width24 mm
Height20 mm
Plastic Housing ColorBlack 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272132
SPEC7 - 8.5, 9 Ω, 30 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 7 - 8.5
Impedance @ 300 kHz 1 turn9 Ω
Impedance @ 1 MHz 1 turn30 Ω
Impedance @ 10 MHz 1 turn45 Ω
Material8 W 5000 
Length40 mm
Width24 mm
Height20 mm
Plastic Housing ColorGrey 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272132S
SPEC7 - 8.5, 9 Ω, 30 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 7 - 8.5
Impedance @ 300 kHz 1 turn9 Ω
Impedance @ 1 MHz 1 turn30 Ω
Impedance @ 10 MHz 1 turn45 Ω
Material8 W 5000 
Length40 mm
Width24 mm
Height20 mm
Plastic Housing ColorBlack 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272221
SPEC8.5 - 10.5, 13 Ω, 50 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 8.5 - 10.5
Impedance @ 300 kHz 1 turn13 Ω
Impedance @ 1 MHz 1 turn50 Ω
Impedance @ 10 MHz 1 turn32 Ω
Material8 W 5000 
Length41.6 mm
Width33.5 mm
Height28.4 mm
Plastic Housing ColorGrey 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272221S
SPEC8.5 - 10.5, 13 Ω, 50 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 8.5 - 10.5
Impedance @ 300 kHz 1 turn13 Ω
Impedance @ 1 MHz 1 turn50 Ω
Impedance @ 10 MHz 1 turn32 Ω
Material8 W 5000 
Length41.6 mm
Width33.5 mm
Height28.4 mm
Plastic Housing ColorBlack 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272222
SPEC10.5 - 12.5, 13 Ω, 50 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 10.5 - 12.5
Impedance @ 300 kHz 1 turn13 Ω
Impedance @ 1 MHz 1 turn50 Ω
Impedance @ 10 MHz 1 turn32 Ω
Material8 W 5000 
Length41.6 mm
Width33.5 mm
Height28.4 mm
Plastic Housing ColorGrey 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272222S
SPEC10.5 - 12.5, 13 Ω, 50 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 10.5 - 12.5
Impedance @ 300 kHz 1 turn13 Ω
Impedance @ 1 MHz 1 turn50 Ω
Impedance @ 10 MHz 1 turn32 Ω
Material8 W 5000 
Length41.6 mm
Width33.5 mm
Height28.4 mm
Plastic Housing ColorBlack 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272151
SPEC12 - 15, 15 Ω, 65 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 12 - 15
Impedance @ 300 kHz 1 turn15 Ω
Impedance @ 1 MHz 1 turn65 Ω
Impedance @ 10 MHz 1 turn33 Ω
Material8 W 5000 
Length48.4 mm
Width38.8 mm
Height35 mm
Plastic Housing ColorGrey 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272151S
SPEC12 - 15, 15 Ω, 65 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 12 - 15
Impedance @ 300 kHz 1 turn15 Ω
Impedance @ 1 MHz 1 turn65 Ω
Impedance @ 10 MHz 1 turn33 Ω
Material8 W 5000 
Length48.4 mm
Width38.8 mm
Height35 mm
Plastic Housing ColorBlack 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272211
SPEC17 - 21, 18 Ω, 70 Ω
Simu­lation
Availability
Downloads1 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 17 - 21
Impedance @ 300 kHz 1 turn18 Ω
Impedance @ 1 MHz 1 turn70 Ω
Impedance @ 10 MHz 1 turn30 Ω
Material8 W 5000 
Length55.4 mm
Width46.5 mm
Height43 mm
Plastic Housing ColorGrey 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272211S
SPEC17 - 21, 18 Ω, 70 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 17 - 21
Impedance @ 300 kHz 1 turn18 Ω
Impedance @ 1 MHz 1 turn70 Ω
Impedance @ 10 MHz 1 turn30 Ω
Material8 W 5000 
Length55.4 mm
Width46.5 mm
Height43 mm
Plastic Housing ColorBlack 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272251
SPEC22 - 25, 23 Ω, 46 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 22 - 25
Impedance @ 300 kHz 1 turn23 Ω
Impedance @ 1 MHz 1 turn46 Ω
Impedance @ 10 MHz 1 turn27 Ω
Material8 W 5000 
Length61.3 mm
Width59.5 mm
Height55 mm
Plastic Housing ColorGrey 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability
WE-STAR-TEC LFS
74272251S
SPEC22 - 25, 23 Ω, 46 Ω
Simu­lation
Availability
Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Cable Diameter 22 - 25
Impedance @ 300 kHz 1 turn23 Ω
Impedance @ 1 MHz 1 turn46 Ω
Impedance @ 10 MHz 1 turn27 Ω
Material8 W 5000 
Length61.3 mm
Width59.5 mm
Height55 mm
Plastic Housing ColorBlack 
Safety Key
Design Kit
Alpha-Rack
STAR-CLIP Fixation
Check availability

Cable diameter clamping range

The all-rounder for low frequencies – WE-STAR-TEC LFS

The article-specific clamping range of WE-STAR-TEC LFS enables precise selection for defined cable diameters, ensuring a secure and accurate fit. The series has been specially designed for low-frequency applications. The products are available in grey and black.

clamping range of STAR-TEC LFS

#askLorandt explains:

Effect of the Number of Turns on a Snap Ferrite

One, two, or three turns?

How does the number of turns affect the impedance of snap ferrites? This #askLorandt video provides a practical explanation of how one, two, or multiple turns influence the damping and filtering behavior of ferrites. Based on measurement results, it shows the differences between closed ferrites and split snap ferrites, how impedance changes across different frequency ranges, and why additional turns can be particularly beneficial at lower frequencies. At the same time, it becomes clear that as the number of turns increases, parasitic effects such as higher capacitance also play a role. In addition, the video explains the differences between NiZn and MnZn ferrites and helps developers select the right solution for EMC, cable suppression, and interference reduction.

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Assortments

Articles from this product series can be found in the following assortments: