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-FB LT3748 15 uH 45.6 W
Datasheet
117In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 100

Flyback Transformers 30 V to 75 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-PoE EFD20 73W SMT
Datasheet
161In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 WE-UOST Univ Offline 1310uH 0.8A 450mOhm
Datasheet
268In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 150

Power 85 VAC to 265 VAC 24 V 7.2 W 300 mA SMD/SMT Single Primary Winding Dual Secondary Winding 25.81 mm 16.6 mm 13.5 mm WE-UOST
Wurth Elektronik Power Transformers WE-PoEH High Power EPQ13 48uH 30W
Datasheet
300In Stock
Min.: 1
Mult.: 1
Reel: 150

POE - Power Over Ethernet Transformers 33 V to 57 V 5 V 30 W 3 A SMD/SMT Single Primary Winding Dual Secondary Winding 14 mm 17.65 mm 14.5 mm WE-PoEH
Wurth Elektronik Power Transformers WE-FB Flyback 5uH 500VAC
Datasheet
32In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 300

Flyback Transformers 9 V to 16 V 100 V 5 W 50 mA SMD/SMT Single Primary Winding Dual Secondary Winding 9.78 mm 9.14 mm 10.54 mm WE-FB
Wurth Elektronik Power Transformers MID-IBTI LM5017MRX 45 uH 1.5 W
Datasheet
104In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

Flyback Transformers 16 V to 36 V 5 V, 12 V, - 12 V 1.5 W 100 mA, 40 mA, 40 mA SMD/SMT Single Primary Winding Triple Secondary Winding 12.95 mm 12.7 mm 5.98 mm MID-IBTI
Wurth Elektronik Power Transformers WE-FB LT3575 7 uH 15 W
Datasheet
143In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 200

Flyback Transformers 10 V to 40 V 5 V 15 W 3 A SMD/SMT Single Primary Winding Dual Secondary Winding 13.34 mm 15.24 mm 11.43 mm WE-FB
Wurth Elektronik Power Transformers WE-FB LT3748 3.8 uH 9 W
Datasheet
188In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 200

Flyback Transformers 16 V to 24 V 15 V, 15 V, 15 V, 15 V 9 W 150 mA, 150 mA, 150 mA, 150 mA SMD/SMT Dual Primary Winding Quad Secondary Winding 13.97 mm 17.17 mm 12.7 mm WE-FB
Wurth Elektronik Power Transformers MID-FLYLT LT8301 40 uH 2.8 W
Datasheet
250In Stock
1,000Expected 02/06/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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
Wurth Elektronik Power Transformers WE-PoEH High Power EPQ13 128uH 35W
Datasheet
64In Stock
Min.: 1
Mult.: 1
Reel: 150

POE - Power Over Ethernet Transformers 9 V to 57 V 5 V 35 W 3.5 A SMD/SMT Single Primary Winding Dual Secondary Winding 14 mm 17.65 mm 14.5 mm WE-PoEH
Wurth Elektronik Power Transformers MID-OLTI UCC28700 1.8 mH 3 W
Datasheet
125In Stock
Min.: 1
Mult.: 1

Flyback Transformers 85 VAC to 265 VAC 12 V 3 W 250 mA Through Hole Dual Primary Winding Single Secondary Winding 13.72 mm 20.45 mm 10.41 mm MID-OLTI
Wurth Elektronik Power Transformers WE-UNIT Offline 245uH .21A 1.2Ohm
Datasheet
50In Stock
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 24 V 3 W 125 mA Through Hole Single Primary Winding Single Secondary Winding 15 mm 11 mm 16.8 mm WE-UNIT
Wurth Elektronik Power Transformers WE-FB LT3748 12 uH 30 W
Datasheet
1In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 125

Flyback Transformers 30 V to 75 V 15 V 30 W 2 A SMD/SMT Single Primary Winding Single Secondary Winding 23.11 mm 29.08 mm 11.43 mm WE-FB
Wurth Elektronik Power Transformers MID-OLRM 85-265V 44-77kHz
Datasheet
9In Stock
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 12 V 26.4 W 2.2 A Through Hole Dual Primary Winding Single Secondary Winding 24.64 mm 24.64 mm 17.32 mm MID-OLRM
Wurth Elektronik Power Transformers WE-PoE Size ER13 35uH 0.062ohm
Datasheet
2In 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 Triple Secondary Winding 13.46 mm 17.75 mm 12.7 mm WE-PoE
Wurth Elektronik Power Transformers MID-IBTI LM20242 66 uH 15.2 W
Datasheet
203In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 250

Power 15 V to 40 V 12.7 V, 12.7 V 15.2 W 600 mA, 600 mA SMD/SMT Single Primary Winding Dual Secondary Winding 13.34 mm 15.24 mm 11.43 mm MID-IBTI
Wurth Elektronik Power Transformers MID-FLYLT 9-36V 50-200kHz
Datasheet
372In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 400

Flyback Transformers 9 V to 36 V 100 V 1.5 W 15 mA SMD/SMT Single Primary Winding Dual Secondary Winding 10.16 mm 13.36 mm 8.64 mm MID-FLYLT
Wurth Elektronik Power Transformers WE-FB LT3573 15 uH 1 W
Datasheet
55In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

Flyback Transformers 5 V 5 V, 5 V 1 W 100 mA, 100 mA SMD/SMT Single Primary Winding Dual Secondary Winding 12.95 mm 10.41 mm 5.97 mm WE-FB
Wurth Elektronik Power Transformers WE-UNIT Offline 175uH .85A 26Ohm
Datasheet
127In Stock
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 5 V 9 W 600 mA Through Hole Single Primary Winding Single Secondary Winding 18 mm 16.5 mm 18 mm WE-UNIT
Wurth Elektronik Power Transformers WE-FB LT3573 25 uH 9.6 W
Datasheet
272In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 WE-PoE EFD25 96W SMT
Datasheet
100In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 WE-PoE Size ER14.5/6 210uH 280mohm
Datasheet
344In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 400

POE - Power Over Ethernet Transformers 36 V to 57 V 3.3 V 7 W 700 mA SMD/SMT Single Primary Winding Dual Secondary Winding 16.3 mm 16.8 mm 7.4 mm WE-PoE
Wurth Elektronik Power Transformers WE-FLEX W/Air Gap 23.3uH 0.33A
Datasheet
246In 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 12.0uH 1.73A
Datasheet
200In 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-PoE Size ER11/5 400uH 98mohm
Datasheet
175In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

POE - Power Over Ethernet Transformers 36 V to 57 V 5 V 4 W 270 mA SMD/SMT Single Primary Winding Triple Secondary Winding 12.9 mm 13 mm 6.2 mm WE-PoE