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.
Qty. RoHS ECAD Model Product
Primary Voltage Rating
Secondary Voltage Rating
Power Rating
Secondary Current Rating
Mounting Style
Primary Winding
Secondary Winding
Length
Width
Height
Series
Wurth Elektronik Power Transformers - Board Mount MID-OLTI UCC28711D ETD29 THT 69W
Datasheet
123In Stock
Min.: 1
Mult.: 1

MID-OLTI
Wurth Elektronik Power Transformers - Board Mount MID-OLTI UCC28740 EE20/10/6(EF20) THT
Datasheet
120In Stock
Min.: 1
Mult.: 1

MID-OLTI
Wurth Elektronik Power Transformers - Board Mount WE-FB LT3573 30uH 5 W
Datasheet
203In Stock
600Expected 01/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 300

Flyback Transformers 18 V to 30 V 5 V 5 W 1 A SMD/SMT Single Primary Winding Single Secondary Winding 9.78 mm 9.14 mm 10.54 mm WE-FB
Wurth Elektronik Power Transformers - Board Mount WE-FB LT3573 25 uH 6 W
Datasheet
2In Stock
400Expected 18/03/2027
MouseReel Available
Min.: 1
Mult.: 1
: 400

Flyback Transformers 10 V to 30 V 15 V 6 W 400 mA SMD/SMT Single Primary Winding Single Secondary Winding 10.8 mm 13.35 mm 9.14 mm WE-FB
Wurth Elektronik Power Transformers - Board Mount MID-OLSTM Viper06H EE13/7/6 3W THT
Datasheet
108In Stock
Min.: 1
Mult.: 1

MID-OLSTM
Wurth Elektronik Power Transformers - Board Mount MID-OLTI UCC28710 EP13 5W THT
Datasheet
88In Stock
Min.: 1
Mult.: 1

MID-OLTI
Wurth Elektronik Power Transformers - Board Mount MID-OLPI UCC28700 1.67 mH 6 W
Datasheet
377In Stock
1 530On Order
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 5 V 6 W 1.2 A Through Hole Single Primary Winding Single Secondary Winding 16.9 mm 18.8 mm 13 mm MID-OLPI
Wurth Elektronik Power Transformers - Board Mount WE-FB LT3748 1.5 mH 9 W
Datasheet
65In Stock
Min.: 1
Mult.: 1

Flyback Transformers 85 V to 265 V 30 V 9 W 300 mA Through Hole Dual Primary Winding Single Secondary Winding 20.32 mm 24.38 mm 16 mm WE-FB
Wurth Elektronik Power Transformers - Board Mount MID-OLLT LT8315 EE20/10/6 (EF20) 12W THT
Datasheet
67In Stock
Min.: 1
Mult.: 1

MID-OLLT
Wurth Elektronik Power Transformers - Board Mount MID-OLTI UCC28740 EE20/10/6 (EF20) 36W THT
Datasheet
63In Stock
Min.: 1
Mult.: 1

MID-OLTI
Wurth Elektronik Power Transformers - Board Mount MID-OLTI UCC28910 EFD25 36W THT
Datasheet
74In Stock
Min.: 1
Mult.: 1

MID-OLTI
Wurth Elektronik Power Transformers - Board Mount MID-OLLT LT3798 600 uH 14 W
Datasheet
294In Stock
Min.: 1
Mult.: 1

Flyback Transformers 90 VAC to 265 VAC 14 V 14 W 1 A Through Hole Single Primary Winding Dual Secondary Winding 18 mm 16.5 mm 18 mm MID-OLLT
Wurth Elektronik Power Transformers - Board Mount WE-UNIT 5.8W SMD Offline Trnsfmr
Datasheet
34In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 175

Power 55 VAC to 265 VAC 5 V 4.5 W 900 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 WE-UNIT 4W SMD Offline Trnsfmr
Datasheet
23In Stock
700On Order
MouseReel Available
Min.: 1
Mult.: 1
: 175

Power 55 VAC to 265 VAC 15 V 3.2 W 210 mA SMD/SMT Dual Primary Winding Single Secondary Winding 13.8 mm 23.9 mm 11 mm MID-OLEE
Wurth Elektronik Power Transformers - Board Mount MID-OLLT LT3798 ER28/14 24W THT
Datasheet
40In Stock
Min.: 1
Mult.: 1

MID-OLLT
Wurth Elektronik Power Transformers - Board Mount WE-UOST Univ Offline 1250uH 0.8A 2920mOhm
Datasheet
202In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 150

Power 85 VAC to 265 VAC 12 V 6.6 W 550 mA SMD/SMT Single Primary Winding Dual Secondary Winding 25.81 mm 16.6 mm 13.5 mm WE-UOST
Wurth Elektronik Power Transformers - Board Mount WE-LLCR Size ETD39 500uH 200W 12V
Datasheet
10In Stock
Min.: 1
Mult.: 1

Power 255 VAC to 283 VAC 12 V 200 W 16.7 A Through Hole Single Primary Winding Dual Secondary Winding 44 mm 43 mm 30 mm WE-LLCR
Wurth Elektronik Power Transformers - Board Mount WE-LLCR NCP1399Size ETD39 5 00uH 200W 48V
Datasheet
9In Stock
15Expected 25/09/2026
Min.: 1
Mult.: 1

Power 255 VAC to 283 VAC 48 V 200 W 4.2 A Through Hole Single Primary Winding Dual Secondary Winding 44 mm 43 mm 30 mm WE-LLCR
Wurth Elektronik Power Transformers - Board Mount WE-LLCR Size ETD44 400uH 250W 24V
Datasheet
5In Stock
75Expected 28/08/2026
Min.: 1
Mult.: 1

Power 255 VAC to 283 VAC 24 V 250 W 10.4 A Through Hole Single Primary Winding Dual Secondary Winding 48 mm 46 mm 27.5 mm WE-LLCR
Wurth Elektronik Power Transformers - Board Mount MID-OLTI 120V 12V 5W
Datasheet
94In Stock
Min.: 1
Mult.: 1

Power 85 VAC to 130 VAC 12 V 5 W 417 mA Through Hole Dual Primary Winding Single Secondary Winding 17.96 mm 20.3 mm 14.3 mm MID-OLTI
Wurth Elektronik Power Transformers - Board Mount MID-HB TPS60402 2.5 mH 40 mW
Datasheet
6In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 400

Forward Transformers 3 V to 3.6 V 4 V 40 mW 10 mA SMD/SMT Dual Primary Winding Dual Secondary Winding 7.87 mm 8.38 mm 9.65 mm MID-HB
Wurth Elektronik Power Transformers - Board Mount MID-OLSTM 85-265V 80kHz
Datasheet
8In Stock
Min.: 1
Mult.: 1

Offline Transformers 85 VAC to 265 VAC 4.5 V, 13 V 9.6 W 100 mA, 700 mA Through Hole Single Primary Winding Dual Secondary Winding 17.04 mm 13.84 mm 22.55 mm MID-OLSTM
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