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-FB LT3511 200 uH 45 W
Datasheet
855In Stock
Min.: 1
Mult.: 1

Flyback Transformers 8 V to 70 V 50 V to 150 V 45 W 30 mA, 30 mA SMD/SMT Single Primary Winding Dual Secondary Winding 13.46 mm 17.75 mm 12.7 mm WE-FB
Wurth Elektronik Power Transformers - Board Mount 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 - Board Mount WE-PoE Size ER13 127uH 450mOhm
Datasheet
317In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 - Board Mount WE-PoE Size ER14.5/6 210uH 280mohm
Datasheet
341In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 - Board Mount MID-FLYLT LT8303 150 uH 3.6 W
Datasheet
555In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 400

Flyback Transformers 36 V to 72 V 5 V 3.6 W 720 mA SMD/SMT Dual Primary Winding Single Secondary Winding 10.16 mm 13.36 mm 8.64 mm MID-FLYLT
Wurth Elektronik Power Transformers - Board Mount WE-UOST Univ Offline 1310uH 0.8A 3000mOhm
Datasheet
249In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 150

Power 85 VAC to 265 VAC 5 V 6.25 W 1.25 A 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 MID-OLSTM L6599A 1.396 mH 12 W
Datasheet
223In Stock
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 12 V, 12 V 12 W 500 mA, 500 mA Through Hole Single Primary Winding Dual Secondary Winding 22.2 mm 25 mm 16 mm MID-OLSTM
Wurth Elektronik Power Transformers - Board Mount WE-FLEX W/Air Gap 9.9uH 1.17A
Datasheet
159In Stock
Min.: 1
Mult.: 1
: 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 - Board Mount MID-FLYMAX MAX17596 11 uH 19.2 W
Datasheet
595In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 200

Flyback Transformers 17 V to 36 V 12 V 19.2 W 1.6 A SMD/SMT Single Primary Winding Single Secondary Winding 13.46 mm 17.75 mm 12.7 mm MID-FLYMAX
Wurth Elektronik Power Transformers - Board Mount MID-OLON Flyback Transformer
Datasheet
304In Stock
Min.: 1
Mult.: 1

Flyback Transformers 85 VAC to 600 VAC 5 V, 12 V 9.8 W 400 mA, 1 A Through Hole Dual Primary Winding Dual Secondary Winding 23 mm 22 mm 17.53 mm MID-OLON
Wurth Elektronik Power Transformers - Board Mount WE-FB LT3748 15 uH 45.6 W
Datasheet
112In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 - Board Mount WE-FB SMD Flyback Dialog Semi iW1830
Datasheet
998In Stock
Min.: 1
Mult.: 1

Flyback Transformers 90 VAC to 264 VAC 5 V 15 W 3 A Through Hole Dual Primary Winding Single Secondary Winding 22.2 mm 26 mm 16 mm MID-OLDIA
Wurth Elektronik Power Transformers - Board Mount WE-UOST Univ Offline 1310uH 0.8A 450mOhm
Datasheet
268In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 - Board Mount WE-UOST Univ Offline 1500uH 0.8A 4200mOhm
Datasheet
171In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 150

Power 195 VAC to 265 VAC 5 V 7.5 W 1.5 A 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-UNIT Offline 280uH .2A .05Ohm
Datasheet
171In 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 15 mm 11 mm 16.8 mm WE-UNIT
Wurth Elektronik Power Transformers - Board Mount WE-FB Flyback 2.7uH 500VDC
Datasheet
403In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 300

Flyback Transformers 6 V to 12.6 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 - Board Mount MID-OLON NCP1251 750 uH 21.6 W
Datasheet
557In Stock
Min.: 1
Mult.: 1

Flyback Transformers 85 VAC to 265 VAC 12 V 21.6 W 1.8 A Through Hole Dual Primary Winding Single Secondary Winding 23 mm 22 mm 17.53 mm MID-OLON
Wurth Elektronik Power Transformers - Board Mount MID-OLTI UCC28740 230 uH 60 W
Datasheet
860In Stock
Min.: 1
Mult.: 1

Flyback Transformers 94 VAC to 445 VAC 24 V 60 W 2.5 A Through Hole Dual Primary Winding Single Secondary Winding 29.2 mm 30.35 mm 29.3 mm MID-OLTI
Wurth Elektronik Power Transformers - Board Mount MID-OLTI UCC28700 1.8 mH 3 W
Datasheet
122In 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 - Board Mount WE-FB LT3512 151 uH 6.24 W
Datasheet
300In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 300

Flyback Transformers 36 V to 72 V 48 V 6.24 W 130 mA SMD/SMT Single Primary Winding Dual Secondary Winding 9.78 mm 9.14 mm 10.54 mm WE-FB
Wurth Elektronik Power Transformers - Board Mount WE-PPTI SN6501 1 mH 3.3 V SMD/SMT 90C
Datasheet
15 679In Stock
1 200Expected 18/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1 200

Push-Pull Transformers SMD/SMT Dual Primary Winding Dual Secondary Winding 6.73 mm 10.05 mm 4.19 mm WE-PPTI
Wurth Elektronik Power Transformers - Board Mount WE-PPTI SN6501 475 uH 3.3 V SMD/SMT 125C
Datasheet
28 267In Stock
30 000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1 200

Power 3.3 V 5 V 1.8 W 350 mA SMD/SMT Dual Primary Winding Dual Secondary Winding 6.73 mm 10.05 mm 4.19 mm WE-PPTI
Wurth Elektronik Power Transformers - Board Mount WE-PPTI SN6501 340 uH 5 V SMD/SMT 125C
Datasheet
10 909In Stock
25 500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 500

Power 5 V 3.3 V 1.2 W 350 mA SMD/SMT Dual Primary Winding Dual Secondary Winding 9.14 mm 12.7 mm 7.62 mm WE-PPTI
Wurth Elektronik Power Transformers - Board Mount WE-PPTI SN6501 340 uH 5 V SMD/SMT 125C
Datasheet
10 513In Stock
3 000Expected 23/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 500

Power 5 V 5 V 1.8 W 350 mA SMD/SMT Dual Primary Winding Dual Secondary Winding 9.14 mm 12.7 mm 7.62 mm WE-PPTI
Wurth Elektronik Power Transformers - Board Mount WE-PPTI SN6505 72 uH 5.5 V SMD/SMT 125C
Datasheet
9 427In Stock
18 900On Order
MouseReel Available
Min.: 1
Mult.: 1
: 900

Push-Pull Transformers 4.5 V to 5.5 V 5 V 5 W 1 A SMD/SMT Dual Primary Winding Dual Secondary Winding 8.3 mm 12.6 mm 4.1 mm WE-PPTI