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 (USD) 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-PoE Size ER13 127uH 450mOhm
Datasheet
118In Stock
200Expected 05/06/2026
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 Trnsfmr HV 224.6uH .02A
Datasheet
487In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

Signal Transformers SMD/SMT Triple Primary Winding Triple Secondary Winding 12.9 mm 13 mm 6.2 mm WE-FLEX HV
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 DCR=159mOhms 11.6uH 500VDC SMD
Datasheet
181In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 400

WE-FLEX
Wurth Elektronik Power Transformers WE-FLEX W/Air Gap 23.3uH 0.33A
Datasheet
131In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 300

Flexible Transformers 500 VA 970 mA SMD/SMT Triple Primary Winding Triple Secondary Winding 17.5 mm 22.1 mm 8.3 mm 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 Flexible Transformer for DC/DC Converter
Datasheet
25In Stock
Min.: 1
Mult.: 1
Reel: 120

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 12.0uH 1.73A
Datasheet
179In 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 9.7uH 2.20A
Datasheet
71In 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
32In Stock
360Expected 27/03/2026
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 5 uH 75 W
Datasheet
74In 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 WE-POE PD70201 38 uH 25 W
Datasheet
20In Stock
200Expected 09/04/2026
Min.: 1
Mult.: 1
Reel: 200

POE - Power Over Ethernet Transformers 37 V to 57 V 5 V 25 W 5 A SMD/SMT Single Primary Winding Single Secondary Winding 13.46 mm 17.75 mm 12.7 mm WE-POE
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
81In 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
Wurth Elektronik Power Transformers WE-FB LT3575 15 uH 15 W
Datasheet
232In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 250

Flyback Transformers 36 V 5 V 15 W 3 A SMD/SMT Single Primary Winding Single Secondary Winding 13.34 mm 15.24 mm 11.43 mm WE-FB
Wurth Elektronik Power Transformers WE-FB LT3748 50 uH 20 W
Datasheet
265In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 200

Flyback Transformers 36 V 5 V 20 W 4 A SMD/SMT Single Primary Winding Single Secondary Winding 13.46 mm 17.75 mm 12.7 mm WE-FB
Wurth Elektronik Power Transformers WE-FB LT3748 8 uH 45.6 W
Datasheet
32In Stock
100Expected 23/07/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 100

Flyback Transformers 20 V to 48 V 12 V 45.6 W 3.8 A SMD/SMT Dual Primary Winding Triple Secondary Winding 27.03 mm 32.31 mm 13.69 mm WE-FB
Wurth Elektronik Power Transformers WE-FB LT3748 14 uH 30 W
Datasheet
210In Stock
125Expected 02/04/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 WE-FB LT3748 12 uH 31.2 W
Datasheet
244In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 125

Flyback Transformers 30 V to 75 V 24 V 31.2 W 1.3 A SMD/SMT Single Primary Winding Single Secondary Winding 23.11 mm 29.08 mm 11.43 mm WE-FB
Wurth Elektronik Power Transformers WE-FB LT3748 20 uH 60 W
Datasheet
19In Stock
2,100Expected 21/05/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 100

Flyback Transformers 19 V to 70 V 24 V 60 W 2.5 A SMD/SMT Dual Primary Winding Triple Secondary Winding 27.03 mm 32.31 mm 13.69 mm WE-FB
Wurth Elektronik Power Transformers WE-FB LT3748 14 uH 30 W
Datasheet
163In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 125

Flyback Transformers 18 V to 100 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 WE-FB LT3748 37 uH 25 W
Datasheet
83In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 100

Flyback Transformers 28 V 250 V 25 W 100 mA SMD/SMT Single Primary Winding Dual Secondary Winding 27.03 mm 32.31 mm 13.69 mm WE-FB