Transformers

Würth Elektronik Transformers feature power transformers for AC/DC, DC/DC, data/signal, battery management systems (BMS), and interfaces. Additional transformer solutions are gate drive and current sense transformers. These Würth power transformers feature several topologies, including flyback, push-pull, isolated buck, forward, and half-bridge. Würth Elektronik transformers are ideal for power electronics, LED lighting, signal applications, white goods, and more.

Results: 533
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Description Datasheet Availability Pricing (EUR) 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
Mounting Style
Primary Winding
Secondary Winding
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Width
Height
Series
Wurth Elektronik Power Transformers - Board Mount MID-OLTI UCC28711 450 uH
Datasheet
29In Stock
Min.: 1
Mult.: 1

Transformers 120 VDC to 375 VDC 16.7 V 50 mA Through Hole Dual Primary Winding Single Secondary Winding 26.3 mm 33 mm 14.3 mm MID-OLTI
Wurth Elektronik Power Transformers - Board Mount WE-PoE EFD20 95W SMT
Datasheet
94In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 110

POE - Power Over Ethernet Transformers SMD/SMT Dual Primary Winding Dual Secondary Winding 21.8 mm 26.52 mm 11.43 mm WE-PoE
Wurth Elektronik Power Transformers - Board Mount WE-PoE EFD25 95W SMT
Datasheet
74In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 100

POE - Power Over Ethernet Transformers SMD/SMT Dual Primary Winding Single Secondary Winding 27.03 mm 30.38 mm 13.97 mm WE-PoE
Wurth Elektronik Power Transformers - Board Mount WE-PoE EFD20 73W SMT
Datasheet
136In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 110

POE - Power Over Ethernet Transformers SMD/SMT Dual Primary Winding Single Secondary Winding 21.8 mm 26.2 mm 11.43 mm WE-PoE
Wurth Elektronik Power Transformers - Board Mount WE-PoE EFD20 72W SMT
Datasheet
102In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 110

POE - Power Over Ethernet Transformers SMD/SMT Dual Primary Winding Single Secondary Winding 21.8 mm 26.52 mm 11.43 mm WE-PoE
Wurth Elektronik Power Transformers - Board Mount WE-FW MID-PLN Planar 65uH 4.5mOhms
Datasheet
21In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 115

Power SMD/SMT Dual Primary Winding Single Secondary Winding 26.67 mm 29.3 mm 10.5 mm MID-PLN
Wurth Elektronik Power Transformers - Board Mount WE-FW MID-PLN ADP1055 Planar 300uH 5mOhms
Datasheet
57In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 115

Power SMD/SMT Dual Primary Winding Single Secondary Winding 26.67 mm 29.3 mm 10.5 mm MID-PLN
Wurth Elektronik Power Transformers - Board Mount MID-OLTI UCC28740 EE20/10/6(EF20) THT
Datasheet
61In Stock
Min.: 1
Mult.: 1

MID-OLTI
Wurth Elektronik Power Transformers - Board Mount MID-OLSTM Viper114LS 1.2 mH
Datasheet
110In Stock
Min.: 1
Mult.: 1

Transformers 85 VAC 5 V 1.2 A Through Hole Single Primary Winding Dual Secondary Winding 15 mm 15.75 mm 18.5 mm MID-OLSTM
Wurth Elektronik Power Transformers - Board Mount MID-OLEE 78-265V 50000kHz
Datasheet
89In Stock
Min.: 1
Mult.: 1

Power 55 VAC to 265 VAC 12 V 5.4 W 450 mA Through Hole Dual Primary Winding Single Secondary Winding 14.2 mm 20.45 mm 14.6 mm MID-OLEE
Wurth Elektronik Power Transformers - Board Mount MID-OLEE 78-375V 50000kHz
Datasheet
88In Stock
Min.: 1
Mult.: 1

Power 55 VAC to 265 VAC 15 V 4.8 W 320 mA Through Hole Dual Primary Winding Single Secondary Winding 14.2 mm 20.45 mm 14.6 mm MID-OLEE
Wurth Elektronik Power Transformers - Board Mount MID-OLLT LT3798 461 uH 45 W
Datasheet
43In Stock
Min.: 1
Mult.: 1

Flyback Transformers 85 VAC to 265 VAC 125 V 45 W 360 mA Through Hole Dual Primary Winding Dual Secondary Winding 31 mm 31 mm 25 mm MID-OLLT
Wurth Elektronik Power Transformers - Board Mount WE-UNIT 4.6W SMD Offline Trnsfmr
Datasheet
164In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 175

Power 55 VAC to 265 VAC 5 V 3.5 W 700 mA SMD/SMT Dual Primary Winding Dual Secondary Winding 13.8 mm 23.9 mm 11 mm MID-OLEE
Wurth Elektronik Power Transformers - Board Mount MID-ALIT Lightg Apps 2.60mH 1.6Ohm
Datasheet
4In Stock
Min.: 1
Mult.: 1

Power 195 VAC to 265 VAC 24 V 48 W 2 A Through Hole Dual Primary Winding Dual Secondary Winding 31.5 mm 35.2 mm 24 mm MID-OLIFX
Wurth Elektronik Power Transformers - Board Mount WE-UNIT Offline 220uH .21A .29Ohm
Datasheet
296On Order
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 12 V 3 W 250 mA Through Hole Single Primary Winding Single Secondary Winding 15 mm 11 mm 16.8 mm WE-UNIT
Wurth Elektronik Power Transformers - Board Mount WE-UNIT Offline 180uH .2A .05Ohm
Datasheet
359Expected 9/11/2026
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 5 V 3 W 600 mA Through Hole Single Primary Winding Single Secondary Winding 21.5 mm 15 mm 12 mm WE-UNIT
Wurth Elektronik Power Transformers - Board Mount WE-PoE Power over Ethernet Transformer
Datasheet
600Expected 9/4/2026
Min.: 1
Mult.: 1
: 300

POE - Power Over Ethernet Transformers WE-PoE
Wurth Elektronik Power Transformers - Board Mount WE-PoEH High Power EPQ13 21uH 24W
Datasheet
600Expected 9/25/2026
Min.: 1
Mult.: 1
: 150

POE - Power Over Ethernet Transformers 9 V to 57 V 12 V 24 W 1 A SMD/SMT Single Primary Winding Dual Secondary Winding 14 mm 17.65 mm 14.5 mm WE-PoEH
Wurth Elektronik Power Transformers - Board Mount WE-FLEX DCR=344mOhms 198.6uH 500VDC SMD
Datasheet
990On Order
MouseReel Available
Min.: 1
Mult.: 1
: 500

WE-FLEX
Wurth Elektronik Power Transformers - Board Mount WE-FB LT3573 25 uH 9.6 W
Datasheet
477Expected 10/29/2026
MouseReel Available
Min.: 1
Mult.: 1
: 250

Flyback Transformers 18 V to 30 V 12 V 9.6 W 800 mA SMD/SMT Single Primary Winding Single Secondary Winding 13.34 mm 15.24 mm 11.43 mm WE-FB
Wurth Elektronik Power Transformers - Board Mount WE-FB LT3573 25 uH 9.6 W
Datasheet
1.400Expected 10/15/2026
Min.: 1
Mult.: 1
: 200

Flyback Transformers 18 V to 30 V 12 V 9.6 W 800 mA SMD/SMT Single Primary Winding Single Secondary Winding 13.34 mm 15.24 mm 11.43 mm WE-FB
Wurth Elektronik Power Transformers - Board Mount WE-FB LT3748 14 uH 30 W
Datasheet
476Expected 12/21/2026
MouseReel Available
Min.: 1
Mult.: 1
: 125

Flyback Transformers 30 V to 75 V 12 V 30 W 2.5 A SMD/SMT Single Primary Winding Single Secondary Winding 23.11 mm 29.08 mm 11.43 mm WE-FB
Wurth Elektronik Power Transformers - Board Mount MID-FLYLT LT8300 300 uH 1.7 W
Datasheet
1.470Expected 1/7/2027
MouseReel Available
Min.: 1
Mult.: 1
: 300

Flyback Transformers 36 V to 72 V 12 V, 12 V 1.7 W 70 mA, 70 mA SMD/SMT Dual Primary Winding Dual Secondary Winding 9.78 mm 9.14 mm 10.54 mm MID-FLYLT
Wurth Elektronik Power Transformers - Board Mount MID-FLYLT LT8302 9 uH 9 W
Datasheet
3.178On Order
MouseReel Available
Min.: 1
Mult.: 1
: 250

Flyback Transformers 8 V to 32 V 12 V, 12 V 9 W 375 mA, 375 mA SMD/SMT Single Primary Winding Dual Secondary Winding 13.34 mm 15.24 mm 11.43 mm MID-FLYLT
Wurth Elektronik Power Transformers - Board Mount MID-FLYLT LT8301 40 uH 2.8 W
Datasheet
4.500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 250

Flyback Transformers 18 V to 42 V 5 V, 5 V 2.8 W 275 mA, 275 mA SMD/SMT Single Primary Winding Dual Secondary Winding 15.24 mm 13.34 mm 11.43 mm MID-FLYLT