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
Package / Case
Length
Width
Height
Series
Packaging
Pulse Electronics Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH 1-Port
Datasheet
3,389In 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 SMT 12.7 mm 9.53 mm 6 mm HX Tube
Pulse Electronics Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH 1-Port
Datasheet
737In 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 SMT 12.7 mm 9.53 mm 6 mm HX Tube
Pulse Electronics HX1148NL
Pulse Electronics Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port
Datasheet
436In Stock
1,000Expected 10/20/2026
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
Max.: 80

LAN Transformers Module SMD/SMT 1 MHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Single 25.4 mm 9.91 mm 6.22 mm HX Tube
Pulse Electronics Audio Transformers / Signal Transformers 100BaseTX SMD PoE 350uH 1-port
Datasheet
197In Stock
1,880On Order
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
Max.: 160

LAN Transformers Module SMD/SMT 350 uH 1.5 kV - 40 C + 85 C Single 12.7 mm 9.65 mm 4.01 mm 100Base-TX Tube
Pulse Electronics Audio Transformers / Signal Transformers 100Base-TX NON-POE 350uH .65Ohms 1-Port
Datasheet
58In Stock
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 350 uH - 40 C + 85 C Quad 14.732 mm 14.732 mm 4.877 mm Tube
Pulse Electronics Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH 1-Port
Datasheet
302In Stock
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
Max.: 160

LAN Transformers Module SMD/SMT 100 kHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Single 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
66In Stock
3,600Expected 9/1/2026
MouseReel Available
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
Max.: 2,400
: 600

LAN Transformers Module SMD/SMT 100 kHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Single 12.7 mm 9.53 mm 5.97 mm HX Reel, Cut Tape, MouseReel
Pulse Electronics Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH 1-port
Datasheet
404In Stock
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 350 uH 1.5 kV - 40 C + 85 C Single 0.5 in 0.358 in 0.236 in 100Base-TX Tube
Pulse Electronics Audio Transformers / Signal Transformers 100BASE-T SMD NonPoE 1-Port
Datasheet
118In Stock
385Expected 8/31/2026
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 350 uH 4 kV - 40 C + 85 C Single 0.57 in 0.537 in 0.245 in Tube
Pulse Electronics Audio Transformers / Signal Transformers 10/100XFMR/CMC 4KV MOD EXT TEM
Datasheet
281In Stock
700Expected 8/31/2026
MouseReel Available
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 350

LAN Transformers SMD/SMT 125 MHz 100 Ohms 4 kV - 40 C + 85 C Single 0.57 in 0.537 in 0.245 in HX Reel, Cut Tape, MouseReel
Pulse Electronics Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 4-Port
Datasheet
110In Stock
2,250On Order
MouseReel Available
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
Max.: 1,000
: 250

LAN Transformers Module SMD/SMT 100 kHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Quad 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
316In Stock
680Expected 11/18/2026
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
Max.: 160

LAN Transformers Module SMD/SMT 100 kHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Single 12.7 mm 9.65 mm 6 mm HX Tube
Pulse Electronics Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 2-Port
Datasheet
73In 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 13.89 mm 19.05 mm 5.97 mm HX Tube


Pulse Electronics Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 2-Port
Datasheet
176In Stock
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 18.44 mm 13.67 mm 5.87 mm HX Reel, Cut Tape
Pulse Electronics Audio Transformers / Signal Transformers MDL SIN 100D 1:1 4.5K SUPPULMENT SMD
Datasheet
37In Stock
A tariff of 10% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

Signal Transformers SMD/SMT 350 uH 4.5 kV - 40 C + 85 C Dual 15.2 mm 12.7 mm 7.62 mm HX Tube
Pulse Electronics Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 2-Port
Datasheet
34In Stock
MouseReel Available
A tariff of 10% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
: 250

LAN Transformers Module SMD/SMT 1 MHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Dual 27.94 mm 10.92 mm 8.33 mm HX Reel, Cut Tape, MouseReel
Pulse Electronics Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 2-Por
Datasheet
40In Stock
500Expected 1/18/2027
MouseReel Available
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
Max.: 1,000
: 250

LAN Transformers Module SMD/SMT 1 MHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Dual 27.94 mm 10.92 mm 8.33 mm HX Reel, Cut Tape, MouseReel
Pulse Electronics Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-port
Datasheet
238In Stock
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
Max.: 140

LAN Transformers Module SMD/SMT 1 MHz to 125 MHz 350 uH 1.5 kV - 40 C + 85 C Single 0.545 in 0.48 in 0.25 in 1000Base-T Tube
Pulse Electronics Audio Transformers / Signal Transformers QUAD 1000BASE-TX 1:1 4PAIR POE
Datasheet
20In Stock
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

LAN Transformers Module SMD/SMT 350 uH 1.5 kV - 40 C + 85 C 4 Channel HX Tube
Pulse Electronics Audio Transformers / Signal Transformers 1000Base-T PoE SMD 1-Port 325uH/350uH
Datasheet
1In 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 17.5 mm 15.24 mm 5.72 mm HX Tube


Pulse Electronics Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-Port
Datasheet
3,860Expected 1/20/2027
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
Max.: 120

LAN Transformers Module SMD/SMT 100 kHz to 100 MHz 350 uH 1.5 kV - 40 C + 85 C Single 15.24 mm 9.78 mm 4.14 mm HX Tube
Pulse Electronics Audio Transformers / Signal Transformers MDL SIN 1GD 1:1 5K FUNCTUNIONAL SMD
Datasheet
280On Order
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

Signal Transformers SMD/SMT 350 uH 5 kV 0 C + 70 C Single 18.5 mm 15.34 mm 9.77 mm Tube


Pulse Electronics Audio Transformers / Signal Transformers 1000Base-T PCMCIA 1-Port NonPoE SMD
Datasheet
1,150On 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 125 MHz 350 uH 1.5 kV - 40 C + 85 C Single 19.81 mm 19.05 mm 2.54 mm HX Tube
Pulse Electronics Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 2-Por
Datasheet
420Expected 8/31/2026
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 Dual 27.94 mm 10.92 mm 8.33 mm HX Tube
Pulse Electronics Audio Transformers / Signal Transformers MDL SIN 1GD 1:1 4KV FUNCTUNIONAL SMD
Datasheet
826On Order
A tariff of 30% may be applied if shipping to the United States.
Min.: 1
Mult.: 1
Max.: 100

LAN Transformers SMD/SMT 1 MHz to 100 MHz 350 uH 4 kV - 40 C + 85 C Single 18.16 mm 12.2 mm 6.6 mm HX Tube