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: 75
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Product Type Termination Style Frequency Range Inductance Isolation Voltage Minimum Operating Temperature Maximum Operating Temperature Number of Channels Package/Case Length Width Height Series Packaging
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN 10/100BaseT nonPoE 350uH 2500Vrm 1,334In Stock
Cut Tape
$5.97
$4.93
$4.26
Reel
$4.04
Min.: 1
Mult.: 1
: 750
LAN Transformers LAN SMD/SMT 350 uH 2.5 kV - 40 C + 105 C 12.7 mm 8.8 mm 5.7 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN SMD Extended 1 Port 10/100 Base-T 303In Stock
Cut Tape
$12.25
$11.83
$11.15
$9.99
Reel
$9.35
$9.04
Min.: 1
Mult.: 1
: 250
LAN Transformers LAN SMD/SMT 500 kHz to 100 MHz 350 uH 4 kVAC 0 C + 70 C Single 24.55 mm x 17 mm x 10.85 mm 24.55 mm 18.25 mm 10.85 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN 10/100BaseT nonPoE 350uH 4500Vrm 705In Stock
Cut Tape
$9.18
$7.63
$6.94
$6.32
Reel
$5.71
Min.: 1
Mult.: 1
: 300
LAN Transformers LAN SMD/SMT 350 uH 4.5 kV - 40 C + 85 C 17.1 mm 14.75 mm 8.4 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN 10/100BaseT nonPoE 350uH 4500Vrm 700In Stock
Cut Tape
$11.96
$9.97
$9.06
$8.69
Reel
$8.25
Min.: 1
Mult.: 1
: 300
LAN Transformers LAN SMD/SMT 350 uH 4.5 kV - 40 C + 85 C 17.1 mm 14.75 mm 8.4 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 1000BT 1 Port 3,274In Stock
Cut Tape
$6.92
$6.33
$5.85
$5.49
Reel
$5.21
$4.99
Min.: 1
Mult.: 1
: 400
LAN Transformers LAN SMD/SMT 350 uH 1500 Vrms - 40 C + 85 C 4 Channel 17.5 mm 15.24 mm 6.5 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 1000BT 1 Port ETR 2,818In Stock
2,400On Order
Cut Tape
$6.92
$6.33
$5.85
$5.49
Reel
$5.21
$4.99
Min.: 1
Mult.: 1
: 400
LAN Transformers LAN SMD/SMT 350 uH 1500 Vrms - 40 C + 85 C Single 17.5 mm 15.24 mm 6.5 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN SMT TRANSFMR 1000BT 1Port PoE+ETR 1,955In Stock
1,200Expected 2027/02/05
Cut Tape
$6.47
$6.23
$5.88
$5.23
Reel
$4.97
Min.: 1
Mult.: 1
: 400
LAN Transformers LAN SMD/SMT 350 uH 1.5 kVAC - 40 C + 85 C Quad 18.3 mm 12.2 mm 6.35 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN 1KBaseT 4PPoE 350uH 1Port 1500Vrms 872In Stock
800Expected 2026/11/02
Cut Tape
$13.32
$11.00
$9.48
Reel
$8.98
Min.: 1
Mult.: 1
: 400
LAN Transformers LAN SMD/SMT 350 uH 1.5 kV - 40 C + 85 C 18.3 mm 12.2 mm 6.35 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN 10/100/1000 1Port ETR Base T SMD 1,903In Stock
3,200On Order
Cut Tape
$5.94
$5.73
$5.38
$5.07
Reel
$4.55
Min.: 1
Mult.: 1
: 400
LAN Transformers LAN SMD/SMT 1 MHz to 100 MHz 350 uH 1.5 kVAC - 40 C + 105 C Quad 18.29 mm 16 mm 6.15 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik / Midcom Audio Transformers / Signal Transformers WE-LAN 10/100/1000 1Port ETR Base T SMD 1,525In Stock
1,280Expected 2027/01/01
Cut Tape
$6.47
$6.25
$5.86
$5.51
Reel
$4.91
Min.: 1
Mult.: 1
: 320
LAN Transformers LAN SMD/SMT 1 MHz to 100 MHz 350 uH 1.5 kVAC - 40 C + 105 C Quad 18.29 mm 16 mm 7.2 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN SMD Transfrmr 10/100/1000Base-T 2,362In Stock
1,740Expected 2026/11/20
Cut Tape
$6.47
$6.25
$5.86
$5.51
Reel
$4.91
Min.: 1
Mult.: 1
: 290
LAN Transformers LAN SMD/SMT 1 MHz to 100 MHz 180 uH 1.5 kVAC - 40 C + 105 C Quad 18.29 mm 16 mm 8.8 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN 10/100/1000 Base-T SMT Transformer 1 Port 40pin pitch 1.27mm 218In Stock
Cut Tape
$11.96
$9.97
$9.06
$8.23
Reel
$7.77
Min.: 1
Mult.: 1
: 200
LAN Transformers LAN Transformer SMD/SMT 350 uH 4 kVAC - 40 C + 85 C 28.32 mm 12.7 mm 12.7 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port ETR Trnsfmr 489In Stock
450Expected 2026/10/26
Cut Tape
$13.13
$10.90
$9.47
$8.56
Reel
$8.13
Min.: 1
Mult.: 1
: 450
LAN Transformers LAN SMD/SMT 100 kHz to 500 MHz 120 uH 1.5 kVAC - 40 C + 85 C 1 Channel 13.97 mm 15.11 mm 6.6 mm WE-LAN 10G Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port ETR Trnsfmr 539In Stock
Cut Tape
$13.13
$10.90
$9.47
$8.56
Reel
$8.13
Min.: 1
Mult.: 1
: 450
LAN Transformers Module SMD/SMT 100 kHz to 500 MHz 120 uH 1.5 kVAC - 40 C + 85 C Single 13.97 mm 15.11 mm 6.6 mm WE-LAN 10G Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port 4PPoE Trnsfmr 839In Stock
870Expected 2026/11/06
Cut Tape
$15.71
$13.13
$11.37
$10.33
Reel
$9.80
Min.: 1
Mult.: 1
: 290
LAN Transformers Module SMD/SMT 100 kHz to 500 MHz 180 uH 1.5 kVAC 0 C + 70 C Single 18.29 mm 16 mm 8.8 mm WE-LAN 10G Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN 2.5G/5G Base-T SMT 1 Port 120uH OCL a. 27mA DC Bias ETR from -40C to +85C 865In Stock
Cut Tape
$15.35
$14.10
$12.71
$11.54
Reel
$10.03
Min.: 1
Mult.: 1
: 290
LAN Transformers LAN Transformer SMD/SMT 350 uH 1.5 kV - 40 C + 85 C 18.29 mm 16 mm 8.8 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN 10/100 Base-TX SMT Transformer 1Port 12pin pitch 2.54mm 4KVrms isolation 190In Stock
600Expected 2027/03/19
Cut Tape
$6.47
$6.23
$5.88
$5.54
Reel
$4.95
Min.: 1
Mult.: 1
: 300
LAN Transformers LAN Transformer SMD/SMT 350 uH 4 kVAC - 40 C + 85 C 17.1 mm 14.5 mm 8.65 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN 1000Base-T 350uH 1Port 1500Vrms 320In Stock
55,940On Order
Cut Tape
$5.97
$4.94
$4.15
$3.78
Reel
$3.40
Min.: 1
Mult.: 1
: 800
LAN Transformers LAN SMD/SMT 350 uH 1.5 kV - 40 C + 85 C 15.1 mm 7.1 mm 4.25 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN 1KBsT nonPoE 350uH 1Port 4kVrms 33In Stock
200Expected 2026/11/13
Cut Tape
$28.07
$23.40
$21.26
$19.33
Reel
$17.42
Min.: 1
Mult.: 1
: 200
High Voltager LAN Transformers LAN SMD/SMT 350 uH 4 kV - 40 C + 105 C 28.57 mm 12.7 mm 15.49 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port Transformer 435In Stock
400Expected 2026/11/06
Cut Tape
$8.08
$7.29
$6.99
$6.78
Reel
$5.82
Min.: 1
Mult.: 1
: 400
LAN Transformers Module SMD/SMT 200 uH 1.5 kVAC 0 C + 70 C WE-LAN 10G Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-AMT Trnsfmr 30uH .350Ohm 1,423In Stock
6,000Expected 2026/12/24
Cut Tape
$0.79
$0.786
$0.736
$0.663
$0.59
Reel
$0.59
Min.: 1
Mult.: 1
: 3,000
Signal Transformers SMD/SMT 30 uH 3.75 kVAC Single 4.39 mm x 9.14 mm x 1.98 mm 4.39 mm 9.14 mm 1.98 mm MID-DAA Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers MID-PLC ST7540 1 mH - 409In Stock
Cut Tape
$3.64
$3.29
$3.16
$3.06
Reel
$2.92
Min.: 1
Mult.: 1
: 140
Signal Transformers SMD/SMT 1 mH 1.5 kVAC - 20 C + 80 C Single 13.97 mm 15.4 mm 13.2 mm MID-PLC Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN 1000Base-T 48P Pitch 1.02mm 1.5kVrms Non-PoE
600Expected 2026/10/30
Cut Tape
$6.11
$5.40
$4.93
$4.61
Reel
$3.91
$3.76
Min.: 1
Mult.: 1
: 300
Transformers LAN Transformer SMD/SMT 350 uH - 40 C + 85 C 8 Channel 27.8 mm 12.2 mm 7.2 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN 1000Base-T 24P Pitch 1.27mm 1.5kVrms 4PPoE
600Expected 2027/01/22
Cut Tape
$6.11
$5.40
$4.93
$4.47
Reel
$3.91
Min.: 1
Mult.: 1
: 300
Transformers LAN Transformer SMD/SMT 180 uH - 40 C + 105 C 4 Channel 18.15 mm 13 mm 8.8 mm WE-LAN Reel, Cut Tape, MouseReel
Wurth Elektronik Audio Transformers / Signal Transformers WE-LAN 10/100/1000 Base-T SMT Transformer 1 Port 1000BASE-T 24pin pitch 1.27mm 240In Stock
960On Order
Cut Tape
$11.96
$9.97
$9.06
$8.23
Reel
$7.11
Min.: 1
Mult.: 1
: 240
LAN Transformers LAN Transformer SMD/SMT 350 uH 4 kVAC - 40 C + 85 C 18.25 mm 15.24 mm 10.02 mm WE-LAN Reel, Cut Tape, MouseReel