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 (CAD) 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 WE-LLCR Size ETD39 500uH 200W 24V
Datasheet
9In Stock
Min.: 1
Mult.: 1

Power 255 VAC to 283 VAC 24 V 200 W 8.3 A Through Hole Single Primary Winding Dual Secondary Winding 44 mm 43 mm 30 mm WE-LLCR
Wurth Elektronik Power Transformers WE-LLCR FAN7688Size ETD44 4 75uH 250W 12V
Datasheet
13In Stock
15Expected 2026-02-27
Min.: 1
Mult.: 1

Power 255 VAC to 283 VAC 12 V 250 W 20.8 A Through Hole Single Primary Winding Dual Secondary Winding 48 mm 46 mm 27.5 mm WE-LLCR
Wurth Elektronik Power Transformers WE-LLCR Size ETD44 400uH 250W 24V
Datasheet
45In Stock
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 WE-UNIT Offline 220uH .21A .29Ohm
Datasheet
21In Stock
132Expected 2026-02-27
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 WE-UNIT Offline 175uH .21A .29Ohm
Datasheet
138In Stock
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 12 V 3 W 250 mA Through Hole Single Primary Winding Single Secondary Winding 21.5 mm 15 mm 12 mm WE-UNIT
Wurth Elektronik Power Transformers WE-UNIT Offline 180uH .2A .05Ohm
Datasheet
57In Stock
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 WE-UNIT Offline 112uH .85A 28Ohm
Datasheet
9In Stock
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 12 V 8.4 W 250 mA Through Hole Single Primary Winding Dual Secondary Winding 24.5 mm 20.2 mm 16.5 mm WE-UNIT
Wurth Elektronik Power Transformers WE-PoEH High Power EPQ13 21uH 22W
Datasheet
118In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 150

POE - Power Over Ethernet Transformers 9 V to 57 V 5 V 22 W 2.2 A SMD/SMT Single Primary Winding Dual Secondary Winding 14 mm 17.65 mm 14.5 mm WE-PoEH
Wurth Elektronik Power Transformers WE-PoEH High Power EPQ13 100uH 60W
Datasheet
29In Stock
150Expected 2026-02-27
Min.: 1
Mult.: 1
Reel: 150

POE - Power Over Ethernet Transformers 33 V to 57 V 12 V 60 W 2.5 A SMD/SMT Single Primary Winding Dual Secondary Winding 14 mm 17.65 mm 14.5 mm WE-PoEH
Wurth Elektronik Power Transformers WE-PoEH High Power EPQ13 100uH 52.8W
Datasheet
12In Stock
Min.: 1
Mult.: 1
Reel: 150

POE - Power Over Ethernet Transformers 33 V to 57 V 3.3 V 52.8 W 8 A SMD/SMT Single Primary Winding Dual Secondary Winding 14 mm 17.65 mm 14.5 mm WE-PoEH
Wurth Elektronik Power Transformers WE-PoEH High Power EPQ13 100uH 70W
Datasheet
192In Stock
Min.: 1
Mult.: 1
Reel: 150

POE - Power Over Ethernet Transformers 33 V to 57 V 5 V 70 W 7 A SMD/SMT Single Primary Winding Dual Secondary Winding 14 mm 17.65 mm 14.5 mm WE-PoEH
Wurth Elektronik Power Transformers WE-PoE Size ER13 127uH 450mOhm
Datasheet
118In Stock
200Expected 2026-06-05
MouseReel Available
Min.: 1
Mult.: 1
Reel: 200

POE - Power Over Ethernet Transformers 36 V to 57 V 12 V 13 W 550 mA SMD/SMT Single Primary Winding Dual Secondary Winding 13.46 mm 17.75 mm 12.7 mm WE-PoE
Wurth Elektronik Power Transformers WE-PoE Size ER13 127uH 220mohm
Datasheet
340In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 200

POE - Power Over Ethernet Transformers 36 V to 57 V 3.3 V 13 W 2 A SMD/SMT Single Primary Winding Dual Secondary Winding 13.46 mm 17.75 mm 12.7 mm WE-PoE
Wurth Elektronik Power Transformers WE-FLEX Flexible Transformer for DC/DC Converter
Datasheet
115In Stock
Min.: 1
Mult.: 1
Reel: 500

WE-FLEX
Wurth Elektronik Power Transformers WE-FLEX Flexible Transformer for DC/DC Converter
Datasheet
167In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 400

WE-FLEX
Wurth Elektronik Power Transformers WE-FLEX DCR=159mOhms 11.6uH 500VDC SMD
Datasheet
206In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 400

WE-FLEX
Wurth Elektronik Power Transformers WE-FLEX W/Air Gap 9.9uH 1.17A
Datasheet
171In Stock
Min.: 1
Mult.: 1
Reel: 120

Flexible Transformers 500 VA 1.91 A SMD/SMT Triple Primary Winding Triple Secondary Winding 21 mm 29.5 mm 10.8 mm WE-FLEX
Wurth Elektronik Power Transformers WE-FLEX Trnsfmr HV 22.3uH .93A
Datasheet
194In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 120

Signal Transformers 1.35 A SMD/SMT Triple Primary Winding Triple Secondary Winding 29.5 mm 21.5 mm 12 mm WE-FLEX HV
Wurth Elektronik Power Transformers WE-FLEX W/Air Gap 9.7uH 2.20A
Datasheet
81In Stock
Min.: 1
Mult.: 1
Reel: 120

Flexible Transformers 500 VA 1.7 A SMD/SMT Triple Primary Winding Triple Secondary Winding 21 mm 29.5 mm 10.8 mm WE-FLEX
Wurth Elektronik Power Transformers WE-FLEX W/Air Gap 3.4uH 4.18A
Datasheet
38In Stock
360Expected 2026-03-20
Min.: 1
Mult.: 1
Reel: 120

Flexible Transformers 500 VA 1.7 A SMD/SMT Triple Primary Winding Triple Secondary Winding 21 mm 29.5 mm 10.8 mm WE-FLEX
Wurth Elektronik Power Transformers WE-FB LT3751 10 uH
Datasheet
35In Stock
1,000Expected 2026-02-26
MouseReel Available
Min.: 1
Mult.: 1
Reel: 125

Flyback Transformers SMD/SMT Single Primary Winding Single Secondary Winding 28.7 mm 21.97 mm 11.43 mm WE-FB
Wurth Elektronik Power Transformers WE-FB LT3751 5 uH 75 W
Datasheet
76In Stock
Min.: 1
Mult.: 1

Flyback Transformers 24 V 300 V 75 W 250 mA Through Hole Single Primary Winding Dual Secondary Winding 36.5 mm 42 mm 23 mm WE-FB
Wurth Elektronik Power Transformers WE-FB LT3573 25 uH 10 W
Datasheet
118In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 200

Flyback Transformers 9 V to 30 V 5 V 10 W 2 A SMD/SMT Single Primary Winding Single Secondary Winding 13.34 mm 15.24 mm 11.43 mm WE-FB
Wurth Elektronik Power Transformers MID-OLTI 120V 12V 5W
Datasheet
104In 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 WE-FB LT3748 14 uH 40 W
Datasheet
85In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 100

Flyback Transformers 12 V 48 V 40 W 850 mA SMD/SMT Single Primary Winding Dual Secondary Winding 32.31 mm 27.03 mm 13.69 mm WE-FB