WE-FLEX HV Flexible Transformer for DC/DC Converter

Size	L (mm)	W (mm)	H (mm)
ER11.5	12.9	13	6.2
ER14.5/6	16.3	16.8	7.4
EFD15	22.1	17.5	9
EFD20	29.5	21.5	12

LTSpice files

LT
LTSpice_WE-FLEX HV (rev23a).zip
|
337.4 KB

Characteristics

Transformer with 6 identical windings
4 sizes with 5 different lengths of air gap each
Isolation voltage up to 1.5 kVAC
Low leakage inductance
Operating temperature: –40 ºC to +125 ºC
By using different circuits more than 375 transformer solutions and about 125 choke solutions possible. Consequently, quick prototyping possibilities

Applications

Flyback converters
Forward converters
Push-pull converters
Step-up/step-down converters
SEPIC

Products

All

ER11.5

ER14.5/6

EFD15

EFD20

Order Code	Datasheet	Downloads	Status	L_BASE (µH)	I_{R BASE} (A)	I_{SAT BASE} (A)	n	V_T (V (AC))	∫Udt _Base (Vµs)	R_{DC BASE} (mΩ)	L_{S Base} (µH)	Size	Type
749196547	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-EFD20 (rev1).igs \| 2.8 MB STP Download_STP_WE-FLEXHV-EFD20 (rev1).stp \| 1.1 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	3.4	2.3	3.93	1:1:1:1:1:1	1500	83.6	36	0.18	EFD20	gapped
749196537	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-EFD20 (rev1).igs \| 2.8 MB STP Download_STP_WE-FLEXHV-EFD20 (rev1).stp \| 1.1 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	4.3	2.3	3.24	1:1:1:1:1:1	1500	83.6	36	0.18	EFD20	gapped
749196527	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-EFD20 (rev1).igs \| 2.8 MB STP Download_STP_WE-FLEXHV-EFD20 (rev1).stp \| 1.1 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	5.3	2.3	2.81	1:1:1:1:1:1	1500	83.6	36	0.18	EFD20	gapped
749196248	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-ER14 (rev1).igs \| 3.2 MB STP Download_STP_WE-FLEXHV-ER14 (rev1).stp \| 1.4 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	6.6	0.8	1.6	1:1:1:1:1:1	1500	63.4	200	0.17	ER14.5/6	gapped
749196548	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-EFD20 (rev1).igs \| 2.8 MB STP Download_STP_WE-FLEXHV-EFD20 (rev1).stp \| 1.1 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	7.6	1.35	2.98	1:1:1:1:1:1	1500	123.4	102	0.24	EFD20	gapped
749196348	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-EFD15 (rev1).igs \| 2.8 MB STP Download_STP_WE-FLEXHV-EFD15 (rev1).stp \| 1.1 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	7.9	0.83	1.41	1:1:1:1:1:1	1500	61.3	145	0.13	EFD15	gapped
749196238	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-ER14 (rev1).igs \| 3.2 MB STP Download_STP_WE-FLEXHV-ER14 (rev1).stp \| 1.4 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	8.3	0.8	1.3	1:1:1:1:1:1	1500	63.4	200	0.17	ER14.5/6	gapped
749196148	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-ER11 (rev1).igs \| 1.7 MB STP Download_STP_WE-FLEXHV-ER11 (rev1).stp \| 687.9 KB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	8.5	0.5	1.02	1:1:1:1:1:1	1500	49.3	344	0.3	ER11/5	gapped
749196338	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-EFD15 (rev1).igs \| 2.8 MB STP Download_STP_WE-FLEXHV-EFD15 (rev1).stp \| 1.1 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	9.3	0.83	1.13	1:1:1:1:1:1	1500	61.3	145	0.13	EFD15	gapped
749196538	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-EFD20 (rev1).igs \| 2.8 MB STP Download_STP_WE-FLEXHV-EFD20 (rev1).stp \| 1.1 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	9.7	1.35	2.2	1:1:1:1:1:1	1500	123.4	102	0.24	EFD20	gapped
749196517	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-EFD20 (rev1).igs \| 2.8 MB STP Download_STP_WE-FLEXHV-EFD20 (rev1).stp \| 1.1 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	9.9	2.3	1.35	1:1:1:1:1:1	1500	83.6	36	0.18	EFD20	gapped
749196138	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-ER11 (rev1).igs \| 1.7 MB STP Download_STP_WE-FLEXHV-ER11 (rev1).stp \| 687.9 KB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	10.9	0.5	0.8	1:1:1:1:1:1	1500	49.3	344	0.3	ER11/5	gapped
749196228	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-ER14 (rev1).igs \| 3.2 MB STP Download_STP_WE-FLEXHV-ER14 (rev1).stp \| 1.4 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	11.6	0.8	0.94	1:1:1:1:1:1	1500	63.4	200	0.17	ER14.5/6	gapped
749196528	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-EFD20 (rev1).igs \| 2.8 MB STP Download_STP_WE-FLEXHV-EFD20 (rev1).stp \| 1.1 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	12	1.35	1.71	1:1:1:1:1:1	1500	123.4	102	0.24	EFD20	gapped
749196328	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-EFD15 (rev1).igs \| 2.8 MB STP Download_STP_WE-FLEXHV-EFD15 (rev1).stp \| 1.1 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	14.2	0.83	0.72	1:1:1:1:1:1	1500	61.3	145	0.13	EFD15	gapped
749196128	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-ER11 (rev1).igs \| 1.7 MB STP Download_STP_WE-FLEXHV-ER11 (rev1).stp \| 687.9 KB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	14.7	0.5	0.55	1:1:1:1:1:1	1500	49.3	344	0.3	ER11/5	gapped
749196218	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-ER14 (rev1).igs \| 3.2 MB STP Download_STP_WE-FLEXHV-ER14 (rev1).stp \| 1.4 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	21.6	0.8	0.48	1:1:1:1:1:1	1500	63.4	200	0.17	ER14.5/6	gapped
749196518	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-EFD20 (rev1).igs \| 2.8 MB STP Download_STP_WE-FLEXHV-EFD20 (rev1).stp \| 1.1 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	22.3	1.35	0.93	1:1:1:1:1:1	1500	123.4	102	0.24	EFD20	gapped
749196318	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-EFD15 (rev1).igs \| 2.8 MB STP Download_STP_WE-FLEXHV-EFD15 (rev1).stp \| 1.1 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	23.3	0.83	0.43	1:1:1:1:1:1	1500	61.3	145	0.13	EFD15	gapped
749196118	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-ER11 (rev1).igs \| 1.7 MB STP Download_STP_WE-FLEXHV-ER11 (rev1).stp \| 687.9 KB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	27.4	0.5	0.29	1:1:1:1:1:1	1500	49.3	344	0.3	ER11/5	gapped
749196507	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-EFD20 (rev1).igs \| 2.8 MB STP Download_STP_WE-FLEXHV-EFD20 (rev1).stp \| 1.1 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	87.1	2.3	0.16	1:1:1:1:1:1	1500	86.3	36	0.18	EFD20	ungapped
749196208	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-ER14 (rev1).igs \| 3.2 MB STP Download_STP_WE-FLEXHV-ER14 (rev1).stp \| 1.4 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	140	0.8	0.07	1:1:1:1:1:1	1500	63.4	200	0.17	ER14.5/6	ungapped
749196308	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-EFD15 (rev1).igs \| 2.8 MB STP Download_STP_WE-FLEXHV-EFD15 (rev1).stp \| 1.1 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	153.8	0.83	0.06	1:1:1:1:1:1	1500	61.3	145	0.13	EFD15	ungapped
749196508	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-EFD20 (rev1).igs \| 2.8 MB STP Download_STP_WE-FLEXHV-EFD20 (rev1).stp \| 1.1 MB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	196	1.35	0.1	1:1:1:1:1:1	1500	123.4	102	0.24	EFD20	ungapped
749196108	SPEC	6 files EDA models: Components ZIP ALT Altium_WE-FLEX HV (rev22a).IntLib \| 646 KB ZUK Download_Cadstar_WE-FLEX-HV (rev19a).zip \| 11.2 KB CDS Cadence_WE-FLEX_HV (rev18a).zip \| 2.4 MB EAG Eagle_WE-FLEX HV (rev19a).lbr \| 59.3 KB CAD files ZIP IGS Download_IGS_WE-FLEXHV-ER11 (rev1).igs \| 1.7 MB STP Download_STP_WE-FLEXHV-ER11 (rev1).stp \| 687.9 KB Download all 6 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	224.6	0.5	0.04	1:1:1:1:1:1	1500	49.3	344	0.3	ER11/5	ungapped

	Order Code	Datasheet
	749196547	SPEC
	749196537	SPEC
	749196527	SPEC
	749196248	SPEC
	749196548	SPEC
	749196348	SPEC
	749196238	SPEC
	749196148	SPEC
	749196338	SPEC
	749196538	SPEC
	749196517	SPEC
	749196138	SPEC
	749196228	SPEC
	749196528	SPEC
	749196328	SPEC
	749196128	SPEC
	749196218	SPEC
	749196518	SPEC
	749196318	SPEC
	749196118	SPEC
	749196507	SPEC
	749196208	SPEC
	749196308	SPEC
	749196508	SPEC
	749196108	SPEC

Samples

	Order Code	Datasheet	Downloads	Status	L_BASE (µH)	I_{R BASE} (A)	I_{SAT BASE} (A)	n	V_T (V (AC))	∫Udt _Base (Vµs)	R_{DC BASE} (mΩ)	L_{S Base} (µH)	Size	Type	Samples

LTSpice files

Characteristics

Applications

Products

Learn more

Cart