WE-FLEX HV Flexible Transformer for DC/DC Converter

Size	L (mm)	W (mm)	H (mm)	Mount
ER11.5	12.9	13	6.2	-
ER14.5/6	16.3	16.8	7.4	THT
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	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	Mount
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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	140	0.8	0.07	1:1:1:1:1:1	1500	63.4	200	0.17	ER14.5/6	ungapped	THT
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	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	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	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	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	Mount	Samples

LTSpice files

Characteristics

Applications

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