Audio Transformers / Signal Transformers

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LAN Discrete Transformer Modules

Pulse Electronics LAN Discrete Transformer Modules are optimized for all major LAN transceivers. These modules provide electrical circuit isolation that meets IEEE 802.3 standards while maintaining the signal integrity needed for the most demanding applications. Pulse Electronics LAN Discrete Transformer Modules feature a peak reflow temperature rating of +245°C. Other features include 1kHz to 100MHz frequency range, 1Ω impedance, 350µH inductance, and 1.5kV isolation voltage.

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Part #

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

HX5004ENL
Pulse Electronics
1: S/29.35
1,366In Stock

Mfr. Part #
HX5004ENL

Mouser Part #
673-HX5004ENL

Pulse Electronics

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

Learn More

Datasheet

1,366In Stock

S/29.35

S/22.07

S/21.37

S/17.94

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

17.5 mm

12.2 mm

5.72 mm

1000Base-T

Tube

Audio Transformers / Signal Transformers 100Base-TX SMD PoE 350uH .65Ohms 2-Port

H2009NL
Pulse Electronics
1: S/37.45
233In Stock

Mfr. Part #
H2009NL

Mouser Part #
673-H2009NL

Pulse Electronics

Audio Transformers / Signal Transformers 100Base-TX SMD PoE 350uH .65Ohms 2-Port

Learn More

Datasheet

233In Stock

S/37.45

S/31.65

S/30.36

S/29.39

View

Min.: 1
Mult.: 1

LAN Transformers

Module

SMD/SMT

1 MHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Dual

15.11 mm

13.16 mm

6.12 mm

H2009

Tube

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

H1112NL
Pulse Electronics
1: S/20.86
441In Stock

Mfr. Part #
H1112NL

Mouser Part #
673-H1112NL

Pulse Electronics

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

Learn More

Datasheet

441In Stock

S/20.86

S/18.41

S/17.01

S/16.58

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

14.81 mm

14.73 mm

4.88 mm

H1112

Tube

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/26.90

S/25.11

S/23.24

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

25.4 mm

12.83 mm

6.22 mm

Tube

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

H1260NL
Pulse Electronics
1: S/17.94
466In Stock

Mfr. Part #
H1260NL

Mouser Part #
673-H1260NL

Pulse Electronics

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

Learn More

Datasheet

466In Stock

S/17.94

S/15.45

S/15.34

S/13.97

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

12.7 mm

9.65 mm

6 mm

Tube

Audio Transformers / Signal Transformers 10/100Base-TX SMD Non-PoE 1-Port

H1081NL
Pulse Electronics
1: S/29.19
189In Stock

Mfr. Part #
H1081NL

Mouser Part #
673-H1081NL

Pulse Electronics

Audio Transformers / Signal Transformers 10/100Base-TX SMD Non-PoE 1-Port

Learn More

Datasheet

189In Stock

S/29.19

S/24.99

S/23.94

S/23.20

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

17.78 mm

13.72 mm

5.84 mm

Tube

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

H5020NLT
Pulse Electronics
1: S/70.88
87In Stock

Mfr. Part #
H5020NLT

Mouser Part #
673-H5020NLT

Pulse Electronics

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

Learn More

Datasheet

87In Stock

Cut Tape

S/70.88

S/60.14

S/57.18

S/55.39

Reel

S/52.94

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

LAN Transformers

Module

SMD/SMT

1 MHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Dual

27.94 mm

10.92 mm

7.54 mm

Reel, Cut Tape, MouseReel

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

H5007NLT
Pulse Electronics
1: S/32.31
5,319In Stock
5,536Expected 9/10/2026

Mfr. Part #
H5007NLT

Mouser Part #
673-H5007NLT

Pulse Electronics

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

Learn More

Datasheet

5,319In Stock

5,536Expected 9/10/2026

Cut Tape

S/32.31

S/28.30

S/27.13

S/25.92

Reel

S/23.20

View

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1,200

: 300

LAN Transformers

Module

SMD/SMT

1 MHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Single

17.53 mm

16 mm

5.51 mm

H5007

Reel, Cut Tape, MouseReel

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

HX0068ANL
Pulse Electronics
1: S/28.42
3,928In Stock

Mfr. Part #
HX0068ANL

Mouser Part #
673-HX0068ANL

Pulse Electronics

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

Learn More

Datasheet

3,928In Stock

S/28.42

S/24.41

S/20.51

S/19.31

S/18.92

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

9.652 mm

2.083 mm

100Base-TX

Tube

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

HX1188NL
Pulse Electronics
1: S/20.94
4,553In Stock

Mfr. Part #
HX1188NL

Mouser Part #
673-HX1188NL

Pulse Electronics

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

Learn More

Datasheet

4,553In Stock

S/20.94

S/16.78

S/15.30

S/14.87

S/14.64

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

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

HX1188NLT
Pulse Electronics
1: S/14.52
15,324In Stock
13,200Expected 10/15/2026

Mfr. Part #
HX1188NLT

Mouser Part #
673-HX1188NLT

Pulse Electronics

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

Learn More

Datasheet

15,324In Stock

13,200Expected 10/15/2026

Cut Tape

S/14.52

S/13.16

S/12.07

S/11.68

Reel

S/10.08

View

MouseReel Available

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

Reel, Cut Tape, MouseReel

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

HX5004NLT
Pulse Electronics
1: S/38.54
2,886In Stock
4,500Expected 9/9/2026

Mfr. Part #
HX5004NLT

Mouser Part #
673-HX5004NLT

Pulse Electronics

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

Learn More

Datasheet

2,886In Stock

4,500Expected 9/9/2026

Cut Tape

S/38.54

S/33.63

S/32.27

S/28.49

Reel

S/28.45

View

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1,200

: 300

LAN Transformers

Module

SMD/SMT

1 MHz to 100 MHz

350 uH

1.5 kV

- 40 C

+ 85 C

Single

17.53 mm

16 mm

5.51 mm

HX5004

Reel, Cut Tape, MouseReel

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

HX5008NL
Pulse Electronics
1: S/47.18
6,583In Stock

Mfr. Part #
HX5008NL

Mouser Part #
673-HX5008NL

Pulse Electronics

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

Learn More

Datasheet

6,583In Stock

S/47.18

S/41.73

S/35.81

S/34.95

S/34.41

Min.: 1
Mult.: 1
Max.: 140

LAN Transformers

Module

SMD/SMT

1 MHz to 100 MHz

350 uH

1.5 kV

- 40 C

+ 85 C

Single

13.64 mm

5.72 mm

Tube

Audio Transformers / Signal Transformers 10/100BaseT SMD NPoE 1-Port

H1012NLT
Pulse Electronics
1: S/22.19
1,247In Stock

Mfr. Part #
H1012NLT

Mouser Part #
673-H1012NLT

Pulse Electronics

Audio Transformers / Signal Transformers 10/100BaseT SMD NPoE 1-Port

Learn More

Datasheet

1,247In Stock

Cut Tape

S/22.19

S/19.54

S/18.76

S/18.18

Reel

S/16.89

View

MouseReel Available

Min.: 1
Mult.: 1

: 300

LAN Transformers

Module

SMD/SMT

1 MHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Single

17.78 mm

12.95 mm

9.4 mm

Reel, Cut Tape, MouseReel

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

H1100NL
Pulse Electronics
1: S/18.88
600In Stock

Mfr. Part #
H1100NL

Mouser Part #
673-H1100NL

Pulse Electronics

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

Learn More

Datasheet

600In Stock

S/18.88

S/16.54

S/15.73

S/15.22

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

12.7 mm

7.11 mm

5.97 mm

H1100

Tube

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

H1102NL
Pulse Electronics
1: S/20.32
2,067In Stock
9,600On Order

Mfr. Part #
H1102NL

Mouser Part #
673-H1102NL

Pulse Electronics

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

Learn More

Datasheet

2,067In Stock

9,600On Order

S/20.32

S/17.44

S/14.13

S/13.78

S/13.58

Min.: 1
Mult.: 1
Max.: 160

LAN Transformers

Module

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Single

12.7 mm

9.53 mm

6.09 mm

Tube

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .65Ohms 4-Por

H1164NLT
Pulse Electronics
1: S/50.52
797In Stock

Mfr. Part #
H1164NLT

Mouser Part #
673-H1164NLT

Pulse Electronics

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 350uH .65Ohms 4-Por

Learn More

Datasheet

797In Stock

Cut Tape

S/50.52

S/43.44

S/40.25

S/39.20

Reel

S/35.03

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

LAN Transformers

Module

SMD/SMT

1 kHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Quad

28.58 mm

16 mm

5.84 mm

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1000Base-T SMD 1-Port

H5004NL
Pulse Electronics
1: S/42.62
233In Stock

Mfr. Part #
H5004NL

Mouser Part #
673-H5004NL

Pulse Electronics

Audio Transformers / Signal Transformers 1000Base-T SMD 1-Port

Learn More

Datasheet

233In Stock

S/42.62

S/37.17

S/35.62

S/34.49

View

Min.: 1
Mult.: 1

LAN Transformers

Module

SMD/SMT

1 MHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Single

17.53 mm

12.2 mm

5.51 mm

H5004

Tube

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

H5007NL
Pulse Electronics
1: S/32.97
1,667In Stock
2,975Expected 9/14/2026

Mfr. Part #
H5007NL

Mouser Part #
673-H5007NL

Pulse Electronics

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

Learn More

Datasheet

1,667In Stock

2,975Expected 9/14/2026

S/32.97

S/27.52

S/23.16

S/22.65

S/22.58

Min.: 1
Mult.: 1
Max.: 100

LAN Transformers

Module

SMD/SMT

1 MHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Single

17.53 mm

12.2 mm

5.51 mm

H5007

Tube

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

H5008NL
Pulse Electronics
1: S/43.79
358In Stock

Mfr. Part #
H5008NL

Mouser Part #
673-H5008NL

Pulse Electronics

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

Learn More

Datasheet

358In Stock

S/43.79

S/37.91

S/37.29

S/34.41

View

Min.: 1
Mult.: 1

LAN Transformers

Module

SMD/SMT

1 MHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Single

13.64 mm

18.8 mm

5.72 mm

5008

Tube

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

H5008NLT
Pulse Electronics
1: S/29.04
512In Stock

Mfr. Part #
H5008NLT

Mouser Part #
673-H5008NLT

Pulse Electronics

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

Learn More

Datasheet

512In Stock

Cut Tape

S/29.04

S/25.50

S/24.44

S/24.37

Reel

S/22.30

View

MouseReel Available

Min.: 1
Mult.: 1

: 350

LAN Transformers

Module

SMD/SMT

1 MHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Single

13.64 mm

5.72 mm

5008

Reel, Cut Tape, MouseReel

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

H5079NL
Pulse Electronics
1: S/41.57
223In Stock

Mfr. Part #
H5079NL

Mouser Part #
673-H5079NL

Pulse Electronics

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

Learn More

Datasheet

223In Stock

S/41.57

S/33.71

S/32.58

S/32.00

View

Min.: 1
Mult.: 1

LAN Transformers

Module

SMD/SMT

1 MHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Single

19.94 mm

14.7 mm

2.54 mm

H5079

Tube

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

HX1198NLT
Pulse Electronics
1: S/14.83
3,366In Stock

Mfr. Part #
HX1198NLT

Mouser Part #
673-HX1198NLT

Pulse Electronics

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

Learn More

Datasheet

3,366In Stock

Cut Tape

S/14.83

S/13.43

S/12.30

S/11.83

Reel

S/10.43

View

MouseReel Available

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

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 4-Port

HX1234NL
Pulse Electronics
1: S/53.76
350In Stock
570Expected 9/9/2026

Mfr. Part #
HX1234NL

Mouser Part #
673-HX1234NL

Pulse Electronics

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 4-Port

Learn More

Datasheet

350In Stock

570Expected 9/9/2026

S/53.76

S/45.04

S/43.63

S/42.16

Min.: 1
Mult.: 1
Max.: 60

LAN Transformers

Module

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kV

- 40 C

+ 85 C

Quad

28.58 mm

16 mm

5.84 mm

Tube

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 2-Port

HX1294NL
Pulse Electronics
1: S/29.51
494In Stock

Mfr. Part #
HX1294NL

Mouser Part #
673-HX1294NL

Pulse Electronics

Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 2-Port

Learn More

Datasheet

494In Stock

S/29.51

S/25.92

S/24.41

S/23.86

View

Min.: 1
Mult.: 1

LAN Transformers

Module

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kV

- 40 C

+ 85 C

Dual

28.58 mm x 16.26 mm x 5.84 mm

28.58 mm

16.26 mm

5.84 mm

100Base-TX

Tube

LAN Discrete Transformer Modules

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0.5 in
12.7 mm
13.64 mm
0.545 in
14.732 mm
14.81 mm
15.11 mm
16.51 mm
17.27 mm
17.5 mm
17.53 mm
17.7 mm
17.78 mm
18.16 mm
19.81 mm
19.94 mm
25.4 mm
27.81 mm
27.94 mm
28.58 mm

6.35 mm
6.73 mm
7.11 mm
9.09 mm
0.358 in
9.14 mm
9.4 mm
9.53 mm
9.65 mm
9.652 mm
9.91 mm
10.77 mm
10.92 mm
12.19 mm
0.48 in
12.2 mm
12.83 mm
12.95 mm
13.16 mm
13.64 mm

2.08 mm
2.083 mm
2.54 mm
3.2 mm
4.01 mm
4.57 mm
4.877 mm
4.88 mm
5.51 mm
5.715 mm
5.72 mm
5.84 mm
5.97 mm
5.99 mm
0.236 in
6 mm
6.09 mm
6.12 mm
6.22 mm
0.25 in