Audio Transformers / Signal Transformers

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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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Part #

Audio Transformers / Signal Transformers 10/100Base-T SMD 1-Port

HX1178NL
Pulse Electronics
1: S/31.57
417In Stock

Mfr. Part #
HX1178NL

Mouser Part #
673-HX1178NL

Pulse Electronics

Audio Transformers / Signal Transformers 10/100Base-T SMD 1-Port

Learn More

Datasheet

417In Stock

S/31.57

S/27.64

S/24.80

S/23.04

View

Min.: 1
Mult.: 1

LAN Transformers

Module

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kV

- 40 C

+ 85 C

Single

10/100 Base-T

25.4 mm

12.83 mm

6.22 mm

Tube

Audio Transformers / Signal Transformers MDL SIN 100D 1:1 4.5K REINFORCED SMD

HX1333NL
Pulse Electronics
1: S/22.93
423In Stock

Mfr. Part #
HX1333NL

Mouser Part #
673-HX1333NL

Pulse Electronics

Audio Transformers / Signal Transformers MDL SIN 100D 1:1 4.5K REINFORCED SMD

Learn More

Datasheet

423In Stock

S/22.93

S/19.42

S/17.32

S/16.89

View

Min.: 1
Mult.: 1

Signal Transformers

SMD/SMT

350 uH

4.5 kV

- 40 C

+ 85 C

Dual

17.1 mm

14.75 mm

8.4 mm

Tube

Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 2-Port

HX5014NLT
Pulse Electronics
1: S/71.74
719In Stock

Mfr. Part #
HX5014NLT

Mouser Part #
673-HX5014NLT

Pulse Electronics

Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 2-Port

Learn More

Datasheet

719In Stock

Cut Tape

S/71.74

S/59.56

S/56.64

S/54.85

Reel

S/49.63

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

LAN Transformers

Module

SMD/SMT

1 MHz to 100 MHz

1.5 kV

- 40 C

+ 85 C

Single

1000 Base-T

27.813 mm

15.367 mm

7.239 mm

HX5014

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .65Ohms 1-Port

HX1260NLT
Pulse Electronics
1: S/14.60
2,984In Stock

Mfr. Part #
HX1260NLT

Mouser Part #
673-HX1260NLT

Pulse Electronics

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .65Ohms 1-Port

Learn More

Datasheet

2,984In Stock

Cut Tape

S/14.60

S/13.23

S/12.03

S/11.56

Reel

S/10.47

View

MouseReel Available

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

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-port

HX5004ENL
Pulse Electronics
1: S/28.61
1,396In Stock

Mfr. Part #
HX5004ENL

Mouser Part #
673-HX5004ENL

Pulse Electronics

Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-port

Learn More

Datasheet

1,396In Stock

S/28.61

S/22.07

S/21.95

S/21.10

View

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

17.5 mm

12.2 mm

5.72 mm

1000Base-T

Tube

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port

HX1148NLT
Pulse Electronics
1: S/33.90
1,224In Stock

Mfr. Part #
HX1148NLT

Mouser Part #
673-HX1148NLT

Pulse Electronics

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port

Learn More

Datasheet

1,224In Stock

Cut Tape

S/33.90

S/29.12

S/27.95

S/27.09

Reel

S/21.99

View

MouseReel Available

Min.: 1
Mult.: 1

: 300

LAN Transformers

Module

SMD/SMT

1 MHz to 100 MHz

350 uH

1 Ohms

1.5 kV

- 40 C

+ 85 C

Single

10/100 Base-T

25.4 mm

9.91 mm

6.22 mm

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 100Base-TX SMD PoE 350uH .75Ohms 1-Port

HX2019FNL
Pulse Electronics
1: S/22.65
1,251In Stock
NRND

Mfr. Part #
HX2019FNL

Mouser Part #
673-HX2019FNL

NRND

Pulse Electronics

Audio Transformers / Signal Transformers 100Base-TX SMD PoE 350uH .75Ohms 1-Port

Learn More

Datasheet

1,251In Stock

S/22.65

S/18.06

S/16.39

S/16.27

View

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 PoE

SMT

12.7 mm

9.53 mm

6 mm

Tube

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .65Ohms 1-Por

H1260FNL
Pulse Electronics
1: S/18.29
801In Stock
NRND

Mfr. Part #
H1260FNL

Mouser Part #
673-H1260FNL

NRND

Pulse Electronics

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .65Ohms 1-Por

Learn More

Datasheet

801In Stock

S/18.29

S/16.50

S/15.57

S/15.06

View

Min.: 1
Mult.: 1

LAN Transformers

Module

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Single

10/100 Base-T PoE

SMT

12.7 mm

9.53 mm

6 mm

Tube

Audio Transformers / Signal Transformers 1000Base-T NonPoE 1-Port SMD 350uH

HX5062FNL
Pulse Electronics
1: S/17.91
600In Stock
NRND

Mfr. Part #
HX5062FNL

Mouser Part #
673-HX5062FNL

NRND

Pulse Electronics

Audio Transformers / Signal Transformers 1000Base-T NonPoE 1-Port SMD 350uH

Learn More

Datasheet

600In Stock

S/17.91

S/17.44

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

Tube

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .75Ohms 2-Port

HX1305NLT
Pulse Electronics
1: S/37.68
22In Stock

Mfr. Part #
HX1305NLT

Mouser Part #
673-HX1305NLT

Pulse Electronics

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .75Ohms 2-Port

Learn More

Datasheet

22In Stock

Cut Tape

S/37.68

S/29.62

S/28.42

S/27.56

Reel

S/22.89

View

Min.: 1
Mult.: 1

: 200

LAN Transformers

Module

SMD/SMT

- 40 C

+ 85 C

Single

10/100 Base-T PoE

Reel, Cut Tape

Audio Transformers / Signal Transformers MDL,DUAL,1GD, 1:1, HF,SMT T&R

HX5020HLT
Pulse Electronics
1: S/63.37
1,194In Stock

Mfr. Part #
HX5020HLT

Mouser Part #
673-HX5020HLT

Pulse Electronics

Audio Transformers / Signal Transformers MDL,DUAL,1GD, 1:1, HF,SMT T&R

Learn More

Datasheet

1,194In Stock

Cut Tape

S/63.37

S/50.06

S/48.03

S/46.52

Reel

S/36.39

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers MDL,DUAL,1GP, 1:1, HF, SMT T&R

HX6136HLT
Pulse Electronics
1: S/63.37
996In Stock

Mfr. Part #
HX6136HLT

Mouser Part #
673-HX6136HLT

Pulse Electronics

Audio Transformers / Signal Transformers MDL,DUAL,1GP, 1:1, HF, SMT T&R

Learn More

Datasheet

996In Stock

Cut Tape

S/63.37

S/50.06

S/48.03

S/46.52

Reel

S/39.66

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1500V 350uH 8mA 2%

HX6135HL
Pulse Electronics
1: S/61.00
270In Stock

Mfr. Part #
HX6135HL

Mouser Part #
673-HX6135HL

Pulse Electronics

Audio Transformers / Signal Transformers 1500V 350uH 8mA 2%

Learn More

Datasheet

270In Stock

S/61.00

S/53.95

S/51.65

S/50.02

View

Min.: 1
Mult.: 1

Module

SMD/SMT

350 uH

1500 Vrms

- 40 C

+ 85 C

27.94 mm

7.55 mm

8.33 mm

Tube

Audio Transformers / Signal Transformers 1500V 350uH 8mA 2%

HX5020HL
Pulse Electronics
1: S/57.41
279In Stock

Mfr. Part #
HX5020HL

Mouser Part #
673-HX5020HL

Pulse Electronics

Audio Transformers / Signal Transformers 1500V 350uH 8mA 2%

Learn More

Datasheet

279In Stock

S/57.41

S/50.80

S/49.47

S/47.06

S/40.25

Min.: 1
Mult.: 1

Module

SMD/SMT

350 uH

1500 Vrms

- 40 C

+ 85 C

27.94 mm

7.55 mm

8.33 mm

Tube

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port

HX0068ANL
Pulse Electronics
1: S/28.30
4,388In Stock

Mfr. Part #
HX0068ANL

Mouser Part #
673-HX0068ANL

Pulse Electronics

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port

Learn More

Datasheet

4,388In Stock

S/28.30

S/24.33

S/21.60

S/20.59

View

Min.: 1
Mult.: 1

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

100Base-TX

Tube

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH 1-Port

HX1188FNLT
Pulse Electronics
1: S/14.95
9,718In Stock

Mfr. Part #
HX1188FNLT

Mouser Part #
673-HX1188FNLT

Pulse Electronics

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH 1-Port

Learn More

Datasheet

9,718In Stock

Cut Tape

S/14.95

S/13.55

S/12.22

S/11.87

Reel

S/9.85

View

MouseReel Available

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

9.65 mm

5.97 mm

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH 1-Port

HX1188NLT
Pulse Electronics
1: S/15.80
11,666In Stock
10,200On Order

Mfr. Part #
HX1188NLT

Mouser Part #
673-HX1188NLT

Pulse Electronics

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH 1-Port

Learn More

Datasheet

11,666In Stock

10,200On Order

Cut Tape

S/15.80

S/13.43

S/12.88

S/12.49

Reel

S/11.17

View

MouseReel Available

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

12.7 mm

9.53 mm

5.97 mm

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 1-Por

HX5004NLT
Pulse Electronics
1: S/38.54
7,736On Order

Mfr. Part #
HX5004NLT

Mouser Part #
673-HX5004NLT

Pulse Electronics

Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 1-Por

Learn More

Datasheet

7,736On Order

Cut Tape

S/38.54

S/33.71

S/32.31

S/30.01

Reel

S/26.94

View

MouseReel Available

Min.: 1
Mult.: 1

: 300

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

HX5004

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 325uH 1-Port

HX5008FNL
Pulse Electronics
1: S/46.32
1,802In Stock

Mfr. Part #
HX5008FNL

Mouser Part #
673-HX5008FNL

Pulse Electronics

Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 325uH 1-Port

Learn More

Datasheet

1,802In Stock

S/46.32

S/40.91

S/37.17

S/36.12

View

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

13.16 mm

18.67 mm

6.12 mm

Tube

Audio Transformers / Signal Transformers 1000BaseT SMD PoE 325uH 1-Port

HX5008NL
Pulse Electronics
1: S/43.32
3,357In Stock
4,235On Order

Mfr. Part #
HX5008NL

Mouser Part #
673-HX5008NL

Pulse Electronics

Audio Transformers / Signal Transformers 1000BaseT SMD PoE 325uH 1-Port

Learn More

Datasheet

3,357In Stock

4,235On Order

S/43.32

S/40.13

S/35.15

S/35.11

View

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

13.64 mm

5.72 mm

Tube

Audio Transformers / Signal Transformers MDL,SIN,1GD,1:1,SMT TR NPB

HX5120NLT
Pulse Electronics
1: S/65.12
7,213In Stock

Mfr. Part #
HX5120NLT

Mouser Part #
673-HX5120NLT

Pulse Electronics

Audio Transformers / Signal Transformers MDL,SIN,1GD,1:1,SMT TR NPB

Learn More

Datasheet

7,213In Stock

Cut Tape

S/65.12

S/55.39

S/52.82

S/51.15

View

Reel

S/45.23

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

LAN Transformers

SMD/SMT

100 MHz

350 uH

100 Ohms

1.5 kV

- 40 C

+ 85 C

Single

1000 Base-T

16.51 mm

9.14 mm

2.08 mm

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .65Ohms 1-Por

H1102FNL
Pulse Electronics
1: S/21.25
989In Stock
NRND

Mfr. Part #
H1102FNL

Mouser Part #
673-H1102FNL

NRND

Pulse Electronics

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .65Ohms 1-Por

Learn More

Datasheet

989In Stock

S/21.25

S/17.28

S/14.21

S/13.82

View

Min.: 1
Mult.: 1

LAN Transformers

Module

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Single

100 Base-TX PoE

SMT

12.7 mm

9.53 mm

6.09 mm

Tube

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port

HX0068ANLT
Pulse Electronics
1: S/28.57
1,999In Stock
8,000Expected 12/21/2026

Mfr. Part #
HX0068ANLT

Mouser Part #
673-HX0068ANLT

Pulse Electronics

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port

Learn More

Datasheet

1,999In Stock

8,000Expected 12/21/2026

Cut Tape

S/28.57

S/25.15

S/24.13

S/21.02

View

Reel

S/18.22

MouseReel Available

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

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH 1-Port

HX1188NL
Pulse Electronics
1: S/19.42
3,051In Stock
4,720Expected 7/31/2026

Mfr. Part #
HX1188NL

Mouser Part #
673-HX1188NL

Pulse Electronics

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH 1-Port

Learn More

Datasheet

3,051In Stock

4,720Expected 7/31/2026

S/19.42

S/17.36

S/15.69

S/15.18

View

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

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH 1-Port

HX1198FNLT
Pulse Electronics
1: S/14.95
1,619In Stock

Mfr. Part #
HX1198FNLT

Mouser Part #
673-HX1198FNLT

Pulse Electronics

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH 1-Port

Learn More

Datasheet

1,619In Stock

Cut Tape

S/14.95

S/13.55

S/12.61

S/12.22

Reel

S/9.69

View

MouseReel Available

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

Reel, Cut Tape, MouseReel

High Isolation Ethernet Magnetic Transformers

Customer Service Office

Company

Resources

Support

0.5 in
12.7 mm
13.16 mm
13.64 mm
0.545 in
13.89 mm
0.57 in
14.73 mm
14.732 mm
0.6 in
15.2 mm
15.21 mm
15.24 mm
16.51 mm
17.1 mm
17.27 mm
17.5 mm
17.53 mm
17.78 mm
18.16 mm

7.55 mm
0.3 in
7.62 mm
9.09 mm
0.358 in
9.14 mm
9.53 mm
9.65 mm
9.652 mm
9.78 mm
9.91 mm
10.92 mm
12.19 mm
0.48 in
12.2 mm
12.7 mm
12.83 mm
0.537 in
13.64 mm
13.67 mm

2.08 mm
2.083 mm
2.54 mm
3.2 mm
4.01 mm
0.163 in
4.14 mm
4.877 mm
5.51 mm
5.715 mm
5.72 mm
5.84 mm
5.87 mm
5.97 mm
5.99 mm
0.236 in
6 mm
6.09 mm
6.12 mm
0.245 in