High Isolation Ethernet Magnetic Transformers

Pulse Electronics High Isolation Ethernet Magnetic Transformers meet IEEE 802.3 specifications and feature a compact footprint for use in space-restrictive appliances. These transformers offer high isolation for robust applications that require more isolation than traditional LAN applications. They provide safety isolation of up to 6kV and are ideal for both industrial and medical applications. The transformers come with multiple options for working voltages, isolation voltages, and surge/impulse. Pulse Electronics High Isolation Ethernet Magnetic Transformers also meet functional, basic, supplementary, and reinforced insulation requirements. Typical applications include 2-phase and 3-phase electricity meters, battery management solutions, AC motor drives, MRI machines, CPAP machines, and dialysis equipment.

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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
Type
Termination Style
Frequency Range
Inductance
Primary Impedance
Secondary Impedance
Isolation Voltage
Minimum Operating Temperature
Maximum Operating Temperature
Number of Channels
Application
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Length
Width
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Pulse Electronics Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port
Datasheet
1,653In Stock
8,000Expected 12/21/2026
MouseReel Available
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 2,000

LAN Transformers Module SMD/SMT 100 kHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Single 10/100 PC Card 12.7 mm 9.652 mm 2.083 mm HX Reel, Cut Tape, MouseReel
Pulse Electronics Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH 1-Port
Datasheet
2,448In Stock
4,312Expected 8/14/2026
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 100 kHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Single 100 Base-TX 12.7 mm 9.53 mm 5.97 mm 100Base-TX Tube
Pulse Electronics Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH 1-Port
Datasheet
1,584In Stock
MouseReel Available
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 600

LAN Transformers Module SMD/SMT 1 MHz to 125 MHz 350 uH 1.5 kV - 40 C + 85 C Single 100 Base-TX PoE 0.5 in 0.358 in 0.236 in HX Reel, Cut Tape, MouseReel
Pulse Electronics Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 4-Port
Datasheet
326In Stock
570Expected 8/13/2026
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 100 kHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Quad 100 Base-TX 28.58 mm 16 mm 5.84 mm HX Tube
Pulse Electronics Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 4-Port
Datasheet
610In Stock
MouseReel Available
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 250

LAN Transformers Module SMD/SMT 100 kHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Quad 100 Base-TX 28.58 mm 16.002 mm 5.84 mm HX Reel, Cut Tape, MouseReel


Pulse Electronics Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .65Ohms 1-Por
Datasheet
753In Stock
1,200Expected 8/14/2026
MouseReel Available
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 600

LAN Transformers Module SMD/SMT 100 kHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Single 100 Base-TX PoE 12.7 mm 9.09 mm 5.99 mm HX Reel, Cut Tape, MouseReel
Pulse Electronics Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 2-Port
Datasheet
565In Stock
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 100 kHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Dual 10/100 Base-TX 28.58 mm x 16.26 mm x 5.84 mm 28.58 mm 16.26 mm 5.84 mm 100Base-TX Tube


Pulse Electronics Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 2-Port
Datasheet
433In Stock
MouseReel Available
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 350

LAN Transformers Module SMD/SMT 100 kHz to 100 MHz - 40 C + 85 C Dual 10/100 Base-TX 15.21 mm 13.67 mm 5.87 mm HX Reel, Cut Tape, MouseReel
Pulse Electronics Audio Transformers / Signal Transformers MDL,SIN,1GD,1:1,SMT TR, NPB
Datasheet
2,347In Stock
MouseReel Available
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 300

Signal Transformers SMD/SMT 125 MHz 100 Ohms 1.5 kV - 40 C + 85 C 17.5 mm 12.2 mm 5.72 mm Reel, Cut Tape, MouseReel
Pulse Electronics Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 1-Por
Datasheet
335In Stock
700Expected 11/16/2026
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 1 MHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Single 1000 Base-T 17.53 mm 16 mm 5.51 mm HX Tube
Pulse Electronics Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 325uH 1-Port
Datasheet
1,592In Stock
4,200Expected 8/21/2026
MouseReel Available
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 350

LAN Transformers Module SMD/SMT 1 MHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Single 1000 Base-T 13.64 mm 18.8 mm 5.72 mm HX Reel, Cut Tape, MouseReel
Pulse Electronics Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 2-Por
Datasheet
192In Stock
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 1 MHz to 125 MHz 350 uH 1 Ohms 1 Ohms 1.5 kV - 40 C + 85 C Dual 1000 Base-T 27.81 mm 12.19 mm 7.49 mm 1000Base-T Tube
Pulse Electronics Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 1-Por
Datasheet
374In Stock
700Expected 8/20/2026
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 1 MHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Single 1000 Base-T 17.53 mm 16 mm 5.715 mm 1000Base-T Tube


Pulse Electronics Audio Transformers / Signal Transformers 1000Base-T NonPoE 1-Port SMD 350uH
Datasheet
820In Stock
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 300

LAN Transformers Module SMD/SMT 1 MHz to 100 MHz - 40 C + 85 C Single 1000 Base-T 17.53 mm 16 mm 5.715 mm HX Reel, Cut Tape


Pulse Electronics Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-Port
Datasheet
1,340In Stock
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 100 kHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Single 1000 Base-T 15.24 mm 9.78 mm 4.14 mm HX Tube


Pulse Electronics Audio Transformers / Signal Transformers 1000Base-T NonPoE 1-Port SMD 350uH
Datasheet
1,595In Stock
MouseReel Available
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 700

LAN Transformers Module SMD/SMT 100 kHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Single 1000 Base-T 15.24 mm 9.78 mm 4.14 mm HX Reel, Cut Tape, MouseReel
Pulse Electronics Audio Transformers / Signal Transformers 1000Base-T NonPoE 350uH .65Ohms 1-Port
Datasheet
643In Stock
3,930On Order
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 100 MHz 350 uH 1.5 kV - 40 C + 85 C Single 1000 Base-T 16.51 mm 9.14 mm 2.08 mm 1000Base-T Tube
Pulse Electronics Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 300uH/360uH 1-port
Datasheet
1,775In Stock
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 1 MHz to 125 MHz 350 uH 1.5 kV - 40 C + 85 C Single 1000 Base-T 17.78 mm 9.91 mm 3.2 mm 1000Base-T Tube


Pulse Electronics Audio Transformers / Signal Transformers 1000Base-T PCMCIA 1-Port NonPoE SMD
Datasheet
1,359In Stock
MouseReel Available
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 400

LAN Transformers Module SMD/SMT 1 MHz to 125 MHz 350 uH 1.5 kV - 40 C + 85 C Single 1000 Base-T 17.78 mm 9.91 mm 3.2 mm HX Reel, Cut Tape, MouseReel
Pulse Electronics Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-port
Datasheet
318In Stock
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 1 MHz to 125 MHz 350 uH 1.5 kV - 40 C + 85 C Single 1000 Base-T 0.545 in 0.48 in 0.25 in 1000Base-T Tube
Pulse Electronics Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 2-Port
Datasheet
624In Stock
420Expected 8/12/2026
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 1 MHz to 125 MHz 350 uH 1 Ohms 1 Ohms 1.5 kV - 40 C + 85 C Dual 1000 Base-T 14.73 mm 17.27 mm 10.92 mm HX Tray
Pulse Electronics Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 2-Port
Datasheet
280In Stock
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 1 MHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Dual 1000 Base-T 17.27 mm 14.73 mm 10.67 mm HX Tray
Pulse Electronics Audio Transformers / Signal Transformers 1000BASE-T SMD PoE+ 1-Port
Datasheet
230In Stock
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 25

LAN Transformers Module SMD/SMT 1 MHz to 100 MHz 350 uH 4 kV - 40 C + 85 C Quad 1000 Base-T 18.5 mm 15.34 mm 9.77 mm HX Reel, Cut Tape
Pulse Electronics Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 4-Por
Datasheet
180In Stock
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 1 MHz to 125 MHz 350 uH 650 mOhms 65 mOhms 1.5 kV - 40 C + 85 C Quad 1000 Base-T 28.45 mm 17.27 mm 11.18 mm HX Tray
Pulse Electronics Audio Transformers / Signal Transformers 1000BaseT SMD PoE 350uH .65Ohms 4-Por
Datasheet
336In Stock
1,020On Order
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 100 kHz to 200 MHz 350 uH 1.5 kV - 40 C + 85 C Quad 1000 Base-T 28.45 mm 17.27 mm 11.18 mm HX5401NL Tray