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 (JPY) 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-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-FB Flyback 5uH 500VAC
Datasheet
17In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 - Board Mount MID-OLLT LT3799 ER28/14 80W THT
Datasheet
42In Stock
Min.: 1
Mult.: 1

MID-OLLT
Wurth Elektronik Power Transformers - Board Mount MID-OLSTM Viper17HD EE16/7/5 5.1W THT
Datasheet
20In Stock
Min.: 1
Mult.: 1

MID-OLSTM
Wurth Elektronik Power Transformers - Board Mount WE-FLEX Trnsfmr HV 22.3uH .93A
Datasheet
180In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 - Board Mount MID-OLTI LM5023 400 uH 65.2 W
Datasheet
195In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 100

Signal Transformers 85 VAC to 265 VAC 19 V 65.2 W 3.43 A SMD/SMT Dual Primary Winding Triple Secondary Winding 27.03 mm 32.31 mm 13.97 mm MID-OLTI
Wurth Elektronik Power Transformers - Board Mount MID-FLYMAX MAX17690 16 uH 2.5 W
Datasheet
1,274In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 300

Flyback Transformers 8 V to 28 V 5 V 2.5 W 500 mA SMD/SMT Single Primary Winding Single Secondary Winding 9.78 mm 9.5 mm 10.54 mm MID-FLYMAX
Wurth Elektronik Power Transformers - Board Mount MID-OLLT LT3798 180 uH 108 W
Datasheet
142In Stock
1,000Expected 12/17/2026
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 36 V 108 W 3 A Through Hole Dual Primary Winding Triple Secondary Winding 39.6 mm 43.18 mm 30.48 mm MID-OLLT
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-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-PoEH High Power EPQ13 48uH 30W
Datasheet
300In Stock
Min.: 1
Mult.: 1
: 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 - Board Mount WE-FLEX Trnsfmr HV 27.4uH .29A
Datasheet
446In 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 MID-FLYLT LT8300 350 uH 2.1 W
Datasheet
883In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 300

Flyback Transformers 36 V to 72 V 15 V 2.1 W 140 mA SMD/SMT Single Primary Winding Dual Secondary Winding 9.78 mm 9.14 mm 10.54 mm MID-FLYLT
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 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 9/18/2026
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
28,537In 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
10,822In Stock
3,000Expected 10/23/2026
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
9,484In 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