WE-STAR-TEC LFS | Passive Components | Würth Elektronik Product Catalog

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

Order Code	Datasheet	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	Design Kit	Alpha-Rack	Safety Key	STAR-CLIP Fixation
74272140	SPEC	5 files CAD files ZIP 3D 3D_WEStarTecLFS_74272140_3d (rev1).pdf \| 838.8 KB 3D 3D_open_WEStarTecLFS_74272140_3d_open (rev1).pdf \| 838.8 KB IGS IGS_WEStarTecLFS_74272140 (rev1).igs \| 9.5 MB STP STP_WEStarTecLFS_74272140 (rev1).stp \| 2.2 MB STP STP_open_WEStarTecLFS_74272140 (rev1).stp \| 2.2 MB Download all 5 files as zip archive ZIP	New i\| Product is new in our portfolio and production is active. Expected lifetime: >10 years.	2 - 3	5	17	59	8 W 5000	32.6	19	13	Grey	742711	742707001	–	–
74272140S	SPEC	5 files CAD files ZIP 3D 3D_WEStarTecLFS_74272140_3d (rev1).pdf \| 838.8 KB 3D 3D_open_WEStarTecLFS_74272140_3d_open (rev1).pdf \| 838.8 KB IGS IGS_WEStarTecLFS_74272140 (rev1).igs \| 9.5 MB STP STP_WEStarTecLFS_74272140 (rev1).stp \| 2.2 MB STP STP_open_WEStarTecLFS_74272140 (rev1).stp \| 2.2 MB Download all 5 files as zip archive ZIP	New i\| Product is new in our portfolio and production is active. Expected lifetime: >10 years.	2 - 3	5	17	59	8 W 5000	32.6	19	13	Black	–	–	–	–
74272142	SPEC	2 files CAD files ZIP IGS Download_IGS_WE-STAR-TEC-LFS-74272142 (rev1).igs \| 13.2 MB STP Download_STP_WE-STAR-TEC-LFS-74272142 (rev1).stp \| 4.8 MB Download all 2 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	3.5 - 5	5	17	59	8 W 5000	32.6	19	13	Grey	742711	742707001	74271	–
74272111	SPEC	3 files CAD files ZIP 3D 3D 74272111 (rev1).pdf \| 1.7 MB IGS IGS 74272111 (rev1).igs \| 21.4 MB STP STP 74272111 (rev1).stp \| 5.8 MB Download all 3 files as zip archive ZIP	New i\| Product is new in our portfolio and production is active. Expected lifetime: >10 years.	3.5 - 5	10	35	59	8 W 5000	41	23.4	18	Grey	742711	742707001	–	7427711
74272142S	SPEC	3 files CAD files ZIP 3D 3D 74272142 (rev1).pdf \| 836.5 KB IGS IGS 74272142 (rev1).igs \| 9.6 MB STP STP 74272142 (rev1).stp \| 2.2 MB Download all 3 files as zip archive ZIP	New i\| Product is new in our portfolio and production is active. Expected lifetime: >10 years.	3.5 - 5	5	17	59	8 W 5000	32.6	19	13	Black	–	–	–	–
74272111S	SPEC	3 files CAD files ZIP 3D 3D 74272111 (rev1).pdf \| 1.7 MB IGS IGS 74272111 (rev1).igs \| 21.4 MB STP STP 74272111 (rev1).stp \| 5.8 MB Download all 3 files as zip archive ZIP	New i\| Product is new in our portfolio and production is active. Expected lifetime: >10 years.	3.5 - 5	10	35	59	8 W 5000	41	23.4	18	Black	–	–	–	7427711
74272112	SPEC	3 files CAD files ZIP 3D 3D 74272112 (rev1).pdf \| 1.7 MB IGS IGS 74272112 (rev1).igs \| 21.6 MB STP STP 74272112 (rev1).stp \| 5.8 MB Download all 3 files as zip archive ZIP	New i\| Product is new in our portfolio and production is active. Expected lifetime: >10 years.	4.5 - 6	10	35	59	8 W 5000	41	23.4	18	Grey	742711	742707001	–	7427711
74272112S	SPEC	3 files CAD files ZIP 3D 3D 74272112 (rev1).pdf \| 1.7 MB IGS IGS 74272112 (rev1).igs \| 21.6 MB STP STP 74272112 (rev1).stp \| 5.8 MB Download all 3 files as zip archive ZIP	New i\| Product is new in our portfolio and production is active. Expected lifetime: >10 years.	4.5 - 6	10	35	59	8 W 5000	41	23.4	18	Black	–	–	–	7427711
74272131	SPEC	2 files CAD files ZIP IGS Download_IGS_WE-STAR-TEC-LFS-74272131 (rev1).igs \| 11.8 MB STP Download_STP_WE-STAR-TEC-LFS-74272131 (rev1).stp \| 3 MB Download all 2 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	6 - 7.5	9	30	45	8 W 5000	40	24	20	Grey	742711	742707001	74271	7427713
74272131S	SPEC	2 files CAD files ZIP 3D Download 3D (o846482v250) (rev1).pdf \| 941.6 KB IGS IGS 74272131 (rev1).igs \| 11.8 MB Download all 2 files as zip archive ZIP	New i\| Product is new in our portfolio and production is active. Expected lifetime: >10 years.	6 - 7.5	9	30	45	8 W 5000	40	24	20	Black	–	–	–	7427713
74272132	SPEC	2 files CAD files ZIP IGS Download_IGS_WE-STAR-TEC-LFS-74272132 (rev1).igs \| 12 MB STP Download_STP_WE-STAR-TEC-LFS-74272132 (rev1).stp \| 3 MB Download all 2 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	7 - 8.5	9	30	45	8 W 5000	40	24	20	Grey	742711	742707001	74271	7427713
74272132S	SPEC	3 files CAD files ZIP 3D 3D 74272132 (rev1).pdf \| 950.8 KB IGS IGS 74272132 (rev1).igs \| 12 MB STP STP 74272132 (rev1).stp \| 3 MB Download all 3 files as zip archive ZIP	New i\| Product is new in our portfolio and production is active. Expected lifetime: >10 years.	7 - 8.5	9	30	45	8 W 5000	40	24	20	Black	–	–	–	7427713
74272221	SPEC	2 files CAD files ZIP IGS Download_IGS_WE-STAR-TEC-LFS-74272221 (rev1).igs \| 12.9 MB STP Download_STP_WE-STAR-TEC-LFS-74272221 (rev1).stp \| 2.8 MB Download all 2 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	8.5 - 10.5	13	50	32	8 W 5000	41.6	33.5	28.4	Grey	742711	742707001	74271	7427722
74272221S	SPEC	2 files CAD files ZIP IGS Download_IGS_WE-STAR-TEC-LFS-74272221S (rev1).igs \| 12.5 MB STP Download_STP_WE-STAR-TEC-LFS-74272221S (rev1).stp \| 3.1 MB Download all 2 files as zip archive ZIP	New i\| Product is new in our portfolio and production is active. Expected lifetime: >10 years.	8.5 - 10.5	13	50	32	8 W 5000	41.6	33.5	28.4	Black	–	–	–	7427722
74272222	SPEC	2 files CAD files ZIP IGS Download_IGS_WE-STAR-TEC-LFS-74272222 (rev1).igs \| 13.7 MB STP Download_STP_WE-STAR-TEC-LFS-74272222 (rev1).stp \| 3 MB Download all 2 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	10.5 - 12.5	13	50	32	8 W 5000	41.6	33.5	28.4	Grey	742711	742707001	74271	7427722
74272222S	SPEC	2 files CAD files ZIP IGS Download_IGS_WE-STAR-TEC-LFS-74272222S (rev1).igs \| 12.1 MB STP Download_STP_WE-STAR-TEC-LFS-74272222S (rev1).stp \| 3.1 MB Download all 2 files as zip archive ZIP	New i\| Product is new in our portfolio and production is active. Expected lifetime: >10 years.	10.5 - 12.5	13	50	32	8 W 5000	41.6	33.5	28.4	Black	–	–	–	7427722
74272151	SPEC	2 files CAD files ZIP IGS Download_IGS_WE-STAR-TEC-LFS-74272151 (rev1).igs \| 13.9 MB STP Download_STP_WE-STAR-TEC-LFS-74272151 (rev1).stp \| 4.7 MB Download all 2 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	12 - 15	15	65	33	8 W 5000	48.4	38.8	35	Grey	–	742707001	74271	–
74272151S	SPEC	2 files CAD files ZIP IGS Download_IGS_WE-STAR-TEC-LFS-74272151 (rev1).igs \| 13.9 MB STP Download_STP_WE-STAR-TEC-LFS-74272151 (rev1).stp \| 4.7 MB Download all 2 files as zip archive ZIP	New i\| Product is new in our portfolio and production is active. Expected lifetime: >10 years.	12 - 15	15	65	33	8 W 5000	48.4	38.8	35	Black	–	–	–	–
74272211	SPEC	2 files CAD files ZIP IGS Download_IGS_WE-STAR-TEC-LFS-74272211 (rev1).igs \| 13.9 MB STP Download_STP_WE-STAR-TEC-LFS_74272211 (rev1).stp \| 5.1 MB Download all 2 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	17 - 21	18	70	30	8 W 5000	55.4	46.5	43	Grey	–	742707001	74271	–
74272211S	SPEC	3 files CAD files ZIP 3D 3D 74272211S (rev1).pdf \| 1.4 MB IGS IGS 74272211S (rev1).igs \| 13.9 MB STP STP 74272211S (rev1).stp \| 3.2 MB Download all 3 files as zip archive ZIP	New i\| Product is new in our portfolio and production is active. Expected lifetime: >10 years.	17 - 21	19	94	34	8 W 5000	55.4	46.5	43	Black	–	–	–	–
74272251	SPEC	1 files CAD files ZIP STP Download_STP_WE-STAR-TEC-LFS_74272251 (rev1).stp \| 4.7 MB Download all 1 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	22 - 25	23	46	27	8 W 5000	61.3	59.5	55	Grey	–	742707001	74271	–
74272251S	SPEC	3 files CAD files ZIP 3D 3D 74272251S (rev1).pdf \| 9.9 MB IGS IGS 74272251S (rev1).igs \| 10.3 MB STP Download STP (o846323v246) (rev1).stp \| 2.5 MB Download all 3 files as zip archive ZIP	New i\| Product is new in our portfolio and production is active. Expected lifetime: >10 years.	22 - 25	27	63	31	8 W 5000	61.3	59.5	55	Black	–	–	–	–

	Order Code	Datasheet	Simulation
	74272140	SPEC
	74272140S	SPEC
	74272142	SPEC
	74272111	SPEC
	74272142S	SPEC
	74272111S	SPEC
	74272112	SPEC
	74272112S	SPEC
	74272131	SPEC
	74272131S	SPEC
	74272132	SPEC
	74272132S	SPEC
	74272221	SPEC
	74272221S	SPEC
	74272222	SPEC
	74272222S	SPEC
	74272151	SPEC
	74272151S	SPEC
	74272211	SPEC
	74272211S	SPEC
	74272251	SPEC
	74272251S	SPEC