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.

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Series
Wurth Elektronik Power Transformers WE-FB LT3748 1.5 mH 9 W
Datasheet
70Inaasahan 3/12/2026
Min.: 1
Mult.: 1

Flyback Transformers 85 V to 265 V 30 V 9 W 300 mA Through Hole Dual Primary Winding Single Secondary Winding 20.32 mm 24.38 mm 16 mm WE-FB
Wurth Elektronik Power Transformers MID-OLTI UCC28910 EFD25 36W THT
Datasheet
84Inaasahan 2/27/2026
Min.: 1
Mult.: 1

MID-OLTI
Wurth Elektronik Power Transformers MID-UNIT STM Offline 4mH 1.60Ohm
Datasheet
Lead-Time para sa Hindi Naka-stock 9 (na) Linggo
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 5 V 5 W 1 A Through Hole Single Primary Winding Dual Secondary Winding 20 mm 24 mm 16 mm MID-OLSTM
Wurth Elektronik Power Transformers WE-LLCR Size ETD44 400uH 250W 48V
Datasheet
Lead-Time para sa Hindi Naka-stock 3 (na) Linggo
Min.: 15
Mult.: 15

Power 255 VAC to 283 VAC 48 V 250 W 5.2 A Through Hole Single Primary Winding Dual Secondary Winding 48 mm 46 mm 27.5 mm WE-LLCR
Wurth Elektronik Power Transformers WE-UNIT Offline 172uH .21A 1.2Ohm
Datasheet
Hindi Naka-stock
Min.: 180
Mult.: 180

Power 85 VAC to 265 VAC 24 V 3 W 125 mA Through Hole Single Primary Winding Single Secondary Winding 21.5 mm 15 mm 12 mm WE-UNIT
Wurth Elektronik Power Transformers WE-UNIT Offline 145uH .85A 26Ohm
Datasheet
Lead-Time para sa Hindi Naka-stock 21 (na) Linggo
Min.: 154
Mult.: 154

Power 85 VAC to 265 VAC 12 V 8.4 W 250 mA Through Hole Single Primary Winding Dual Secondary Winding 18 mm 16.5 mm 18 mm WE-UNIT
Wurth Elektronik Power Transformers WE-UNIT Offline 145uH 4.5A 210Ohm
Datasheet
Hindi Naka-stock
Min.: 154
Mult.: 154

Power 85 VAC to 265 VAC 24 V 9.6 W 125 mA Through Hole Single Primary Winding Single Secondary Winding 18 mm 16.5 mm 18 mm WE-UNIT
Wurth Elektronik Power Transformers WE-UNIT Offline 100uH .8A 94Ohm
Datasheet
Hindi Naka-stock
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 24 V 9.6 W 125 mA Through Hole Single Primary Winding Single Secondary Winding 24.5 mm 20.2 mm 16.5 mm WE-UNIT
Wurth Elektronik Power Transformers WE-UNIT Offline 120uH .8A 155Ohm
Datasheet
N/A
Min.: 1
Mult.: 1

Power 85 VAC to 265 VAC 5 V 10 W 600 mA Through Hole Single Primary Winding Dual Secondary Winding 24.5 mm 20.2 mm 16.5 mm WE-UNIT
Wurth Elektronik Power Transformers WE-PoE Size ER11/5 400uH 30mohm
Datasheet
Hindi Naka-stock
Min.: 500
Mult.: 500
Reel: 500

POE - Power Over Ethernet Transformers 36 V to 57 V 3.3 V 4 W 400 mA SMD/SMT Single Primary Winding Triple Secondary Winding 12.9 mm 13 mm 6.2 mm WE-PoE
Wurth Elektronik Power Transformers WE-PoE Size ER14.5/6 21uH 640mohm
Datasheet
Hindi Naka-stock
Min.: 400
Mult.: 400
Reel: 400

POE - Power Over Ethernet Transformers 36 V to 57 V 1.8 V 7 W 1.3 A SMD/SMT Single Primary Winding Triple Secondary Winding 16.3 mm 16.8 mm 7.4 mm WE-PoE
Wurth Elektronik Power Transformers WE-PoE Size ER14.5/6 210uH 210mohm
Datasheet
Hindi Naka-stock
Min.: 400
Mult.: 400
Reel: 400

POE - Power Over Ethernet Transformers 36 V to 57 V 5 V 7 W 470 mA SMD/SMT Single Primary Winding Triple Secondary Winding 16.3 mm 16.8 mm 7.4 mm WE-PoE
Wurth Elektronik Power Transformers WE-PoE Size ER14.5/6 210uH 360mOhm
Datasheet
Hindi Naka-stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 400

POE - Power Over Ethernet Transformers 36 V to 57 V 12 V 7 W 580 mA SMD/SMT Single Primary Winding Triple Secondary Winding 16.3 mm 16.8 mm 7.4 mm WE-PoE
Wurth Elektronik Power Transformers WE-PoE Power over Ethernet Transformer
Datasheet
Hindi Naka-stock
Min.: 1
Mult.: 1
Reel: 300

POE - Power Over Ethernet Transformers WE-PoE
Wurth Elektronik Power Transformers WE-PoE+ Size EFD20 42uH 0.099ohm
Datasheet
Hindi Naka-stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 125

POE - Power Over Ethernet Transformers 36 V to 72 V 3.3 V 30 W 9 A SMD/SMT Single Primary Winding Single Secondary Winding 23.11 mm 29.08 mm 11.43 mm WE-PoE+
Wurth Elektronik Power Transformers WE-PoE+ Size EFD20 65.1uH 0.23ohm
Datasheet
Hindi Naka-stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 125

POE - Power Over Ethernet Transformers 36 V to 72 V 5 V 30 W 65 mA SMD/SMT Single Primary Winding Single Secondary Winding 23.11 mm 29.08 mm 11.43 mm WE-PoE+
Wurth Elektronik Power Transformers WE-PoE+ Size EFD20 42uH 0.084ohm
Datasheet
Hindi Naka-stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 125

POE - Power Over Ethernet Transformers 36 V to 72 V 5 V 30 W 5 A SMD/SMT Single Primary Winding Single Secondary Winding 23.11 mm 29.08 mm 11.43 mm WE-PoE+
Wurth Elektronik Power Transformers WE-PoEH High Power EPQ13 54uH 23.1W
Datasheet
Hindi Naka-stock
Min.: 1
Mult.: 1
Reel: 150

POE - Power Over Ethernet Transformers 33 V to 57 V 3.3 V 23.1 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 WE-PoEH High Power EPQ13 128uH 38.4W
Datasheet
N/A
Min.: 1
Mult.: 1
Reel: 150

POE - Power Over Ethernet Transformers 9 V to 57 V 12 V 38.4 W 1.6 A SMD/SMT Single Primary Winding Dual Secondary Winding 14 mm 17.65 mm 14.5 mm WE-PoEH
Wurth Elektronik Power Transformers WE-PoEH High Power EPQ13 128uH 36.3W
Datasheet
Hindi Naka-stock
Min.: 1
Mult.: 1
Reel: 150

POE - Power Over Ethernet Transformers 9 V to 57 V 3.3 V 36.3 W 5.5 A SMD/SMT Single Primary Winding Dual Secondary Winding 14 mm 17.65 mm 14.5 mm WE-PoEH
Wurth Elektronik Power Transformers WE-PoE Size ER13 40uH 0.11ohm
Datasheet
Lead-Time para sa Hindi Naka-stock 18 (na) Linggo
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 200

POE - Power Over Ethernet Transformers 36 V to 57 V 12 V 13 W 1.25 A SMD/SMT Single Primary Winding Single Secondary Winding 13.46 mm 17.75 mm 12.7 mm WE-PoE
Wurth Elektronik Power Transformers WE-PoE Size ER13 127uH 440mOhm
Datasheet
Hindi Naka-stock
Available ang MouseReel
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-PoE Size ER13 127uH 440mOhm
Datasheet
Hindi Naka-stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 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 WE-FLEX Trnsfmr HV 14.7uH .55A
Datasheet
Hindi Naka-stock
Min.: 500
Mult.: 500
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 Trnsfmr HV 10.9uH .8A
Datasheet
Hindi Naka-stock
Min.: 500
Mult.: 500
Reel: 500

Signal Transformers SMD/SMT Triple Primary Winding Triple Secondary Winding 12.9 mm 13 mm 6.2 mm WE-FLEX HV