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 WE-PoE Size ER13 127uH 40mohm
Datasheet
36In Stock
1.000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 200

POE - Power Over Ethernet Transformers 36 V to 57 V 5 V 13 W 1.3 A SMD/SMT Single Primary Winding Dual Secondary Winding 13.46 mm 17.75 mm 12.7 mm WE-PoE
Wurth Elektronik Power Transformers - Board Mount WE-FLEX Trnsfmr HV 224.6uH .02A
Datasheet
147In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 - Board Mount WE-FLEX Flexible Transformer for DC/DC Converter
Datasheet
79In Stock
500Expected 9/18/2026
Min.: 1
Mult.: 1
: 500

WE-FLEX
Wurth Elektronik Power Transformers - Board Mount WR-FLEX Flexible 8.5uH 0.55A 344mOhms
Datasheet
320In Stock
500Expected 9/11/2026
Min.: 1
Mult.: 1
: 500

Flexible Transformers SMD/SMT Triple Primary Winding Triple Secondary Winding 12.9 mm 13 mm 6.2 mm WE-FLEX
Wurth Elektronik Power Transformers - Board Mount WE-FLEX DCR=159mOhms 21.6uH 500VDC SMD
Datasheet
288In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 400

WE-FLEX
Wurth Elektronik Power Transformers - Board Mount WE-FLEX DCR=159mOhms 11.6uH 500VDC SMD
Datasheet
172In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 400

WE-FLEX
Wurth Elektronik Power Transformers - Board Mount WE-FLEX W/O Air Gap 153.8uH 0.02A
Datasheet
314In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 - Board Mount WE-FLEX W/Air Gap 23.3uH 0.33A
Datasheet
321In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 - Board Mount WE-FLEX SMD 500VDC 196uH RDC=71.1mOhms
Datasheet
119In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 120

WE-FLEX
Wurth Elektronik Power Transformers - Board Mount WE-FLEX Trnsfmr HV 87.1uH .08A
Datasheet
48In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 120

Signal Transformers 2.3 A SMD/SMT Triple Primary Winding Triple Secondary Winding 29.5 mm 21.5 mm 12 mm WE-FLEX HV
Wurth Elektronik Power Transformers - Board Mount WE-FLEX Flexible Transformer for DC/DC Converter
Datasheet
120In Stock
Min.: 1
Mult.: 1
: 120

WE-FLEX
Wurth Elektronik Power Transformers - Board Mount WE-FLEX W/Air Gap 9.7uH 2.20A
Datasheet
69In Stock
Min.: 1
Mult.: 1
: 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 - Board Mount WE-FB LT3751 10 uH
Datasheet
23In Stock
2.000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 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 - Board Mount WE-FB LT3751 5 uH 75 W
Datasheet
118In 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 - Board Mount WE-FB LT3573 63 uH 10 W
Datasheet
200In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

Flyback Transformers 12 V to 30 V - 5 V, 5 V 10 W 1 A, 1 A SMD/SMT Single Primary Winding Dual Secondary Winding 13.34 mm 15.24 mm 11.43 mm WE-FB
Wurth Elektronik Power Transformers - Board Mount WE-FB LT3748 4.5 uH 36 W
Datasheet
16In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 120

Flyback Transformers 9 V to 36 V 12 V 36 W 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 - Board Mount WE-POE LT4276 38 uH 25.2 W
Datasheet
55In Stock
1.000Expected 9/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 200

POE - Power Over Ethernet Transformers 37 V to 57 V 12 V 25.2 W 2.1 A SMD/SMT Single Primary Winding Single Secondary Winding 13.46 mm 17.75 mm 12.7 mm WE-POE
Wurth Elektronik Power Transformers - Board Mount WE-POE PD70201 38 uH 25 W
Datasheet
187In Stock
Min.: 1
Mult.: 1
: 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 - Board Mount WE-FB LT3573 25 uH 5.6 W
Datasheet
127In Stock
2.400On Order
MouseReel Available
Min.: 1
Mult.: 1
: 300

Flyback Transformers 18 V to 30 V 15 V 5.6 W 400 mA SMD/SMT Single Primary Winding Single Secondary Winding 9.14 mm 9.78 mm 10.54 mm WE-FB
Wurth Elektronik Power Transformers - Board Mount WE-FB LT3574 3 uH 12 W
Datasheet
38In Stock
200Expected 9/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 200

Flyback Transformers 36 V 24 V 12 W 500 mA SMD/SMT Single Primary Winding Single Secondary Winding 15.24 mm 13.34 mm 11.43 mm WE-FB
Wurth Elektronik Power Transformers - Board Mount WE-FB LT3575 15 uH 15 W
Datasheet
232In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 - Board Mount WE-FB LT3748 15 uH 30 W
Datasheet
205In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 125

Flyback Transformers 18 V to 60 V 13 V 30 W 2.3 A SMD/SMT Single Primary Winding Single Secondary Winding 29.08 mm 23.11 mm 11.43 mm WE-FB
Wurth Elektronik Power Transformers - Board Mount WE-FB LT3748 100 uH 12 W
Datasheet
113In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 200

Flyback Transformers 36 V 12 V 12 W 1 A SMD/SMT Single Primary Winding Single Secondary Winding 13.46 mm 17.75 mm 12.7 mm WE-FB
Wurth Elektronik Power Transformers - Board Mount WE-FB LT3748 37 uH 25.2 W
Datasheet
49In Stock
800Expected 11/5/2026
MouseReel Available
Min.: 1
Mult.: 1
: 200

Flyback Transformers 37 V to 57 V 12 V 25.2 W 2.1 A SMD/SMT Single Primary Winding Single Secondary Winding 13.46 mm 17.75 mm 12.7 mm WE-FB
Wurth Elektronik Power Transformers - Board Mount WE-FB LT3748 50 uH 20 W
Datasheet
62In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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