WE-OLEFD Offline Transformers

Würth Elektronik WE-OLEFD Offline Transformers include transformers crafted for AC/DC converters featuring a versatile output voltage range of 85VAC to 265VAC. These modules are engineered to comply with IEC 61558-2-16 standards for reinforced 400VDC operating voltage. Würth Elektronik WE-OLEFD Offline Transformers come in EFD20 THT, EFD20 SMT, and EFD25 THT low-profile package variants. The switching frequency of the offline transformers spans from 68kHz to 250kHz.

Results: 24
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Description Datasheet Availability Pricing (PLN) Filter the results in the table by unit price based on your quantity.
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Primary Voltage Rating
Secondary Voltage Rating
Power Rating
Secondary Current Rating
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Primary Winding
Secondary Winding
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Width
Height
Series
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD EFD20 TH .8uH 1.4A 24V
Datasheet
996In Stock
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 24 V, 24 V 19.2 W 1.4 A Through Hole Dual Primary Winding Dual Secondary Winding 21.5 mm 29 mm 12 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD EFD20 SMD .8uH 1.4A 12V
Datasheet
138In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 120

Power 120 VAC to 375 VAC 12 V, 12 V 24 W 1 A, 1 A SMD/SMT Dual Primary Winding Dual Secondary Winding 21.5 mm 33.8 mm 12 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD 125-375V 68-170kHz
Datasheet
89In Stock
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 12 V, 12 V 31.2 W 1.3 A, 1.3 A Through Hole Dual Primary Winding Dual Secondary Winding 26.3 mm 33 mm 14 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD EFD20 SMD .8uH 1.4A 24V
Datasheet
147In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 120

Power 85 VAC to 265 VAC 24 V, 24 V 24 W 500 mA, 500 mA SMD/SMT Dual Primary Winding Dual Secondary Winding 21.5 mm 33.8 mm 12 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD EFD20 SMD .8uH 1.4A 40V
Datasheet
63In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 120

Power 85 VAC to 265 VAC 40 V 24 W 600 mA SMD/SMT Dual Primary Winding Single Secondary Winding 21.5 mm 33.8 mm 12 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD EFD20 TH .8uH 1.4A 12V
Datasheet
27In Stock
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 12 V, 12 V 20.4 W 850 mA, 850 mA Through Hole Dual Primary Winding Dual Secondary Winding 21.5 mm 29 mm 12 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD EFD20 SMD .8uH 1.4A 5V
Datasheet
89In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 120

Power 85 VAC to 265 VAC 5 V, 5 V, 7 V 20.2 W 1.1 A, 1.25 A, 1.25 A SMD/SMT Dual Primary Winding Triple Secondary Winding 21.5 mm 33.8 mm 12 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD 125-375V 68-100kHz
Datasheet
68Expected 8/27/2026
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 24 V, 24 V 34.1 W 710 mA, 710 mA Through Hole Dual Primary Winding Dual Secondary Winding 26.3 mm 33 mm 14 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD EFD20 SMD .8uH 1.4A 16V
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1 080
Mult.: 120
: 120

Power 85 VAC to 265 VAC 16 V 20.8 W 1.3 A SMD/SMT Dual Primary Winding Single Secondary Winding 21.5 mm 33.8 mm 12 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD EFD20 TH .8uH 1.4A 16V
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1 008
Mult.: 42

Power 85 VAC to 265 VAC 16 V 18.4 W 1.15 A Through Hole Dual Primary Winding Single Secondary Winding 21.5 mm 29 mm 12 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD 125-375V 68-110kHz
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1 008
Mult.: 42

Power 85 VAC to 265 VAC 16 V 25.6 W 1.6 A Through Hole Dual Primary Winding Single Secondary Winding 26.3 mm 33 mm 14 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD EFD20 SMD .8uH 1.4A 32V
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1 080
Mult.: 120
: 120

Power 85 VAC to 265 VAC 32 V 24 W 750 mA SMD/SMT Dual Primary Winding Single Secondary Winding 21.5 mm 33.8 mm 12 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD EFD20 TH .8uH 1.4A 32V
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1 008
Mult.: 42

Power 85 VAC to 265 VAC 32 V 24 W 750 mA Through Hole Dual Primary Winding Single Secondary Winding 21.5 mm 29 mm 12 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD EFD20 TH .8uH 1.4A 40V
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1 008
Mult.: 42

Power 85 VAC to 265 VAC 40 V 23.2 W 580 mA SMD/SMT Dual Primary Winding Single Secondary Winding 21.5 mm 29 mm 12 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD 125-375V 68-100kHz
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1 008
Mult.: 42

Power 85 VAC to 265 VAC 32 V 32 W 1 A Through Hole Dual Primary Winding Single Secondary Winding 26.3 mm 33 mm 14 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD 125-375V 68-105kHz
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1 008
Mult.: 42

Power 85 VAC to 265 VAC 40 V 32 W 800 mA Through Hole Dual Primary Winding Single Secondary Winding 26.3 mm 33 mm 14 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD 85-265V 68-120kHz
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1 008
Mult.: 42

Power 85 VAC to 265 VAC 5 V, 5 V 15.8 W 1.575 A, 1.575 A SMD/SMT Dual Primary Winding Dual Secondary Winding 26.3 mm 33 mm 14 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD EFD20 SMD .8uH 1.4A 5V
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1 080
Mult.: 120
: 120

Power 85 VAC to 265 VAC 5 V, 5 V 20 W 2 A, 2 A SMD/SMT Dual Primary Winding Dual Secondary Winding 21.5 mm 33.8 mm 12 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD EFD20 TH .8uH 1.4A 5V
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1 008
Mult.: 42

Power 85 VAC to 265 VAC 5 V, 5 V 13 W 1.3 A, 1.3 A Through Hole Dual Primary Winding Dual Secondary Winding 21.5 mm 29 mm 12 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD EFD20 TH .8uH 1.4A 12V
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1 008
Mult.: 42

Power 85 VAC to 265 VAC 5 V, 12 V 19.8 W 900 mA, 1.8 A Through Hole Dual Primary Winding Dual Secondary Winding 21.5 mm 29 mm 12 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD EFD20 TH .8uH 1.4A 5V
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1 008
Mult.: 42

Power 85 VAC to 265 VAC 5 V, 24 V 20.9 W 620 mA, 1.2 A Through Hole Dual Primary Winding Dual Secondary Winding 21.5 mm 29 mm 12 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD 125-375V 68-170kHz
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1 008
Mult.: 42

Power 85 VAC to 265 VAC 5 V, 12 V 32.5 W 1.7 A, 2 A SMD/SMT Dual Primary Winding Dual Secondary Winding 26.3 mm 33 mm 14 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD 125-375V 68-170kHz
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1 008
Mult.: 42

Power 85 VAC to 265 VAC 5 V, 24 V 19.9 W 600 mA, 1.1 A SMD/SMT Dual Primary Winding Dual Secondary Winding 26.3 mm 33 mm 14.81 mm WE-OLEFD
Wurth Elektronik Power Transformers - Board Mount MID-OLEFD EFD20 SMD .8uH 1.4A 5V
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1 080
Mult.: 120
: 120

Power 85 VAC to 265 VAC 5 V, 5 V, 19 V 22.5 W 500 mA, 1.3 A, 1.3 A SMD/SMT Dual Primary Winding Triple Secondary Winding 21.5 mm 33.8 mm 12 mm WE-OLEFD