Audio Transformers / Signal Transformers

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Battery Management Systems

Eaton provides a wide portfolio of products for Battery Management Systems (BMS), including terminal blocks, fuses, supercapacitors, chokes, inductors, and more. Battery Management Systems monitor individual cells, system voltage, current, and temperature. When monitoring individual cells, the BMS balances voltages and regulates the current flow, and if the upper or lower voltage, current, or temperature limit is exceeded, the BMS temporarily disconnects the load or source. Eaton Battery Management Systems estimate the State of Health (SoH), State of Charge (SoC), State of Energy (SoE), and State of Power (SoP) in batteries.

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Part #

Audio Transformers / Signal Transformers Flybk Xfmr EP13 Single 18.5W 12V 1.5A

POEA2FB1V18W1X12
Eaton Electronics
1: $4.47
458In Stock

Mfr. Part No.
POEA2FB1V18W1X12

Mouser Part No
504-POEA2FB1V18W1X12

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EP13 Single 18.5W 12V 1.5A

Learn More

Datasheet

458In Stock

Cut Tape

$4.47

$3.33

$3.01

$2.81

Reel

$2.35

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 200

Flyback Transformers

SMD/SMT

37 uH

1.5 kVAC

- 40 C

+ 125 C

17.65 mm

14.5 mm

14 mm

POEA2FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flybk Xfmr EP13 Single Out 18.5W 8V 2.3A

POEA2FB1V19W1X8
Eaton Electronics
1: $4.47
460In Stock

Mfr. Part No.
POEA2FB1V19W1X8

Mouser Part No
504-POEA2FB1V19W1X8

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EP13 Single Out 18.5W 8V 2.3A

Learn More

Datasheet

460In Stock

Cut Tape

$4.47

$3.33

$3.01

$2.81

Reel

$2.35

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 200

Flyback Transformers

SMD/SMT

90 uH

1.5 kVAC

- 40 C

+ 125 C

17.65 mm

14.5 mm

14 mm

POEA2FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flybk Xfmr EP13 Single Out 27W 3.3V 8A

POEA2FB1V27W1X3
Eaton Electronics
1: $4.83
459In Stock

Mfr. Part No.
POEA2FB1V27W1X3

Mouser Part No
504-POEA2FB1V27W1X3

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EP13 Single Out 27W 3.3V 8A

Learn More

Datasheet

459In Stock

Cut Tape

$4.83

$3.56

$3.22

$3.01

Reel

$2.54

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 200

Flyback Transformers

SMD/SMT

100 uH

1.5 kVAC

- 40 C

+ 125 C

17.65 mm

14.5 mm

14 mm

POEA2FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flybk Xfmr EP13 Single Out 12W 12V 1A

POEA2FB2V12W1X12
Eaton Electronics
1: $4.47
457In Stock

Mfr. Part No.
POEA2FB2V12W1X12

Mouser Part No
504-POEA2FB2V12W1X12

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EP13 Single Out 12W 12V 1A

Learn More

Datasheet

457In Stock

Cut Tape

$4.47

$3.33

$3.01

$2.81

Reel

$2.35

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 200

Flyback Transformers

SMD/SMT

42.9 uH

1.5 kVAC

- 40 C

+ 125 C

17.75 mm

14.2 mm

12.7 mm

POEA2FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flybk Xfmr EP13 Single Out 13W 5V 2,6A

POEA2FB2V13W1X5
Eaton Electronics
1: $4.47
457In Stock

Mfr. Part No.
POEA2FB2V13W1X5

Mouser Part No
504-POEA2FB2V13W1X5

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EP13 Single Out 13W 5V 2,6A

Learn More

Datasheet

457In Stock

Cut Tape

$4.47

$3.33

$3.01

$2.81

Reel

$2.35

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 200

Flyback Transformers

SMD/SMT

127 uH

1.5 kVAC

- 40 C

+ 125 C

17.75 mm

14.2 mm

12.7 mm

POEA2FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flybk Xfmr EP13 Single Out 14W 5V 2.8A

POEA2FB2V14W1X5
Eaton Electronics
1: $4.83
457In Stock

Mfr. Part No.
POEA2FB2V14W1X5

Mouser Part No
504-POEA2FB2V14W1X5

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EP13 Single Out 14W 5V 2.8A

Learn More

Datasheet

457In Stock

Cut Tape

$4.83

$3.56

$3.22

$3.01

Reel

$2.54

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 200

Flyback Transformers

SMD/SMT

100 uH

1.5 kVAC

- 40 C

+ 125 C

17.75 mm

14.2 mm

12.7 mm

POEA2FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flybk Xfmr EP13 Single Out 12.3W 12V 1A

POEA2FB3V12W1X12
Eaton Electronics
1: $4.47
460In Stock

Mfr. Part No.
POEA2FB3V12W1X12

Mouser Part No
504-POEA2FB3V12W1X12

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EP13 Single Out 12.3W 12V 1A

Learn More

Datasheet

460In Stock

Cut Tape

$4.47

$3.33

$3.01

$2.81

Reel

$2.35

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 200

Flyback Transformers

SMD/SMT

140 uH

1.5 kVAC

- 40 C

+ 125 C

17.75 mm

14.2 mm

12.7 mm

POEA2FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flybk Xfmr EP13 Single Out 12W 12V 1A

POEA2FB4V12W1X12
Eaton Electronics
1: $4.47
455In Stock

Mfr. Part No.
POEA2FB4V12W1X12

Mouser Part No
504-POEA2FB4V12W1X12

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EP13 Single Out 12W 12V 1A

Learn More

Datasheet

455In Stock

Cut Tape

$4.47

$3.33

$3.01

$2.81

Reel

$2.35

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 200

Flyback Transformers

SMD/SMT

100.5 uH

1.5 kVAC

- 40 C

+ 125 C

17.75 mm

14.2 mm

12.7 mm

POEA2FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flybk Xfmr EFD15 Single Out 12.3W 12V 1A

POEB1FB1V12W1X12
Eaton Electronics
1: $3.97
557In Stock

Mfr. Part No.
POEB1FB1V12W1X12

Mouser Part No
504-POEB1FB1V12W1X12

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EFD15 Single Out 12.3W 12V 1A

Learn More

Datasheet

557In Stock

Cut Tape

$3.97

$2.94

$2.66

$2.49

Reel

$2.09

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 250

Flyback Transformers

SMD/SMT

140 uH

1.5 kVAC

- 40 C

+ 125 C

22.3 mm

17.3 mm

9 mm

POEB1FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flybk Xfmr EFD15 Dual 13W 5V 0.01A 2.6A

POEB1FB1V13W2X5
Eaton Electronics
1: $3.97
540In Stock

Mfr. Part No.
POEB1FB1V13W2X5

Mouser Part No
504-POEB1FB1V13W2X5

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EFD15 Dual 13W 5V 0.01A 2.6A

Learn More

Datasheet

540In Stock

Cut Tape

$3.97

$2.94

$2.66

$2.49

Reel

$2.09

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 250

Flyback Transformers

SMD/SMT

155 uH

1.5 kVAC

- 40 C

+ 125 C

22.3 mm

17.3 mm

9 mm

POEB1FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flyb Xfmr EFD15 Dual 13.7W 5V 0.01A 1.5A

POEB1FB1V14W2D
Eaton Electronics
1: $3.97
560In Stock

Mfr. Part No.
POEB1FB1V14W2D

Mouser Part No
504-POEB1FB1V14W2D

Eaton Electronics

Audio Transformers / Signal Transformers Flyb Xfmr EFD15 Dual 13.7W 5V 0.01A 1.5A

Learn More

Datasheet

560In Stock

Cut Tape

$3.97

$2.94

$2.66

$2.49

Reel

$2.09

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 250

Flyback Transformers

SMD/SMT

143 uH

1.5 kVAC

- 40 C

+ 125 C

22.3 mm

17.3 mm

9 mm

POEB1FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flybk Xfmr EFD15 Single Out 18W 12V 1.5A

POEB1FB1V18W1X12
Eaton Electronics
1: $3.97
536In Stock

Mfr. Part No.
POEB1FB1V18W1X12

Mouser Part No
504-POEB1FB1V18W1X12

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EFD15 Single Out 18W 12V 1.5A

Learn More

Datasheet

536In Stock

Cut Tape

$3.97

$2.94

$2.66

$2.49

Reel

$2.09

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 250

Flyback Transformers

SMD/SMT

70 uH

1.5 kVAC

- 40 C

+ 125 C

22.3 mm

17.3 mm

9 mm

POEB1FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flybk Xfmr EFD20 Dual 24.3W 12V 0.02A 2A

POEB2FB1V24W2X12
Eaton Electronics
1: $5.76
195In Stock

Mfr. Part No.
POEB2FB1V24W2X12

Mouser Part No
504-POEB2FB1V24W2X12

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EFD20 Dual 24.3W 12V 0.02A 2A

Learn More

Datasheet

195In Stock

Cut Tape

$5.76

$4.41

$4.05

$3.87

Reel

$3.41

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 150

Flyback Transformers

SMD/SMT

11.5 uH

1.5 kVAC

- 40 C

+ 125 C

29.3 mm

21.8 mm

12 mm

POEB2FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flybk Xfmr EFD20 Dual 30W 5V 6A 0.01A

POEB2FB1V30W2X5
Eaton Electronics
1: $5.76
359In Stock

Mfr. Part No.
POEB2FB1V30W2X5

Mouser Part No
504-POEB2FB1V30W2X5

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EFD20 Dual 30W 5V 6A 0.01A

Learn More

Datasheet

359In Stock

Cut Tape

$5.76

$4.41

$4.05

$3.87

Reel

$3.41

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 150

Flyback Transformers

SMD/SMT

100 uH

1.5 kVAC

- 40 C

+ 125 C

29.3 mm

21.8 mm

12 mm

POEB2FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flybk Xfmr EFD20 Single Out 40W 5V 8A

POEB2FB1V40W1X5
Eaton Electronics
1: $2.86
344In Stock

Mfr. Part No.
POEB2FB1V40W1X5

Mouser Part No
504-POEB2FB1V40W1X5

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EFD20 Single Out 40W 5V 8A

Learn More

Datasheet

344In Stock

Cut Tape

$2.86

Reel

$2.86

MouseReel Available

Min.: 1
Mult.: 1

Reel: 150

Flyback Transformers

SMD/SMT

100 uH

1.5 kVAC

- 40 C

+ 125 C

29.3 mm

21.8 mm

12 mm

POEB2FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flybk Xfmr EFD20 Single Out 42W 12V 3.5A

POEB2FB1V42W1X12
Eaton Electronics
1: $6.04
350In Stock

Mfr. Part No.
POEB2FB1V42W1X12

Mouser Part No
504-POEB2FB1V42W1X12

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EFD20 Single Out 42W 12V 3.5A

Learn More

Datasheet

350In Stock

Cut Tape

$6.04

$4.63

$4.26

$4.06

Reel

$3.57

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 150

Flyback Transformers

SMD/SMT

100 uH

1.5 kVAC

- 40 C

+ 125 C

29.3 mm

21.8 mm

12 mm

POEB2FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flybk Xfmr EFD20 Single Out 60W 12V 5A

POEB2FB1V60W1X12
Eaton Electronics
1: $4.64
330In Stock

Mfr. Part No.
POEB2FB1V60W1X12

Mouser Part No
504-POEB2FB1V60W1X12

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EFD20 Single Out 60W 12V 5A

Learn More

Datasheet

330In Stock

Cut Tape

$4.64

$4.50

$4.41

$4.31

$4.26

Reel

$3.65

MouseReel Available

Min.: 1
Mult.: 1

Reel: 150

Flyback Transformers

SMD/SMT

70 uH

1.5 kVAC

- 40 C

+ 125 C

29.3 mm

21.8 mm

12 mm

POEB2FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flybk Xfmr EFD25 Dual 84W 12V 6A 1A

POEB3FB1V84W2X12
Eaton Electronics
1: $7.62
246In Stock

Mfr. Part No.
POEB3FB1V84W2X12

Mouser Part No
504-POEB3FB1V84W2X12

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EFD25 Dual 84W 12V 6A 1A

Learn More

Datasheet

246In Stock

Cut Tape

$7.62

$5.84

$5.36

$5.12

Reel

$5.06

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 100

Flyback Transformers

SMD/SMT

17.5 uH

1.5 kVAC

- 40 C

+ 125 C

32.8 mm

26.8 mm

14.8 mm

POEB3FB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Fwd Xfmr EFD25 Single 50W 5V 10A

POEB3FW1V50W1X5
Eaton Electronics
1: $6.40
249In Stock

Mfr. Part No.
POEB3FW1V50W1X5

Mouser Part No
504-POEB3FW1V50W1X5

Eaton Electronics

Audio Transformers / Signal Transformers Fwd Xfmr EFD25 Single 50W 5V 10A

Learn More

Datasheet

249In Stock

Cut Tape

$6.40

$4.90

$4.50

$4.30

Reel

$4.26

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 100

Forward Transformers

SMD/SMT

162 uH

1.5 kVAC

- 40 C

+ 125 C

32.8 mm

26.8 mm

14.8 mm

POEB3FW

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Fwd Xfmr EFD30 Single 156W 12V 13A

POEB4FW1V156W1X12
Eaton Electronics
1: $8.11
116In Stock

Mfr. Part No.
POEB4FW1V156W1X12

Mouser Part No
504-POEB4FW1V156W112

Eaton Electronics

Audio Transformers / Signal Transformers Fwd Xfmr EFD30 Single 156W 12V 13A

Learn More

Datasheet

116In Stock

Cut Tape

$8.11

$6.21

$5.70

Reel

$5.44

$5.37

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 50

Forward Transformers

SMD/SMT

100 uH

1.5 kVAC

- 40 C

+ 125 C

36 mm

33 mm

14.5 mm

POEB4FW

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers LAN PoE Txfmr, 100 BASE-T, 350uH, Open Hdr, Single Port, 16pins, 1500Vac

LAN1VSOPS16351C2
Eaton Electronics
1: $1.42
621In Stock
1,200Expected 2026/06/09

Mfr. Part No.
LAN1VSOPS16351C2

Mouser Part No
504-LAN1VSOPS16351C2

Eaton Electronics

Audio Transformers / Signal Transformers LAN PoE Txfmr, 100 BASE-T, 350uH, Open Hdr, Single Port, 16pins, 1500Vac

Learn More

Datasheet

621In Stock

1,200Expected 2026/06/09

Cut Tape

$1.42

$1.29

$1.20

$1.16

Reel

$0.99

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,200

LAN Transformers

SMD/SMT

120 uH, 350 uH

1.5 kVAC

- 40 C

+ 85 C

100 Base-T

SMD-16

12.7 mm

7.1 mm

6.1 mm

LANxV

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers LAN Txfmr, 100 BASE-T, 350uH, Open Hdr, Single Port, 16pins , 1500Vac

LAN1VSOS16351C2
Eaton Electronics
1: $1.69
450In Stock
1,200Expected 2026/05/18

Mfr. Part No.
LAN1VSOS16351C2

Mouser Part No
504-LAN1VSOS16351C2

Eaton Electronics

Audio Transformers / Signal Transformers LAN Txfmr, 100 BASE-T, 350uH, Open Hdr, Single Port, 16pins , 1500Vac

Learn More

Datasheet

450In Stock

1,200Expected 2026/05/18

Cut Tape

$1.69

$1.23

$1.11

$0.976

Reel

$0.799

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 600

LAN Transformers

SMD/SMT

350 uH

1.5 kVAC

- 40 C

+ 85 C

100 Base-T

SMD-16

12.7 mm

7.1 mm

5.9 mm

LANxV

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers LAN Txfmr, 1000 BASE-T, 350uH, Open Hdr, Single Port, 24pins, 1500Vac

LAN2VSOS24351C2
Eaton Electronics
1: $1.64
710In Stock
1,700Expected 2026/05/18

Mfr. Part No.
LAN2VSOS24351C2

Mouser Part No
504-LAN2VSOS24351C2

Eaton Electronics

Audio Transformers / Signal Transformers LAN Txfmr, 1000 BASE-T, 350uH, Open Hdr, Single Port, 24pins, 1500Vac

Learn More

Datasheet

710In Stock

1,700Expected 2026/05/18

Cut Tape

$1.64

$1.49

$1.40

$1.38

Reel

$1.16

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,700

LAN Transformers

SMD/SMT

350 uH

1.5 kVAC

- 40 C

+ 85 C

1000 Base-T

SMD-24

27.8 mm

12.2 mm

7.2 mm

LANxV

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers LAN Txfmr, 1000 BASE-T, 350uH, Assy Hdr, Single Port, 24pins, 1500Vac

LAN2VSAS24351C2
Eaton Electronics
1: $3.04
1,071Expected 2026/05/07

Mfr. Part No.
LAN2VSAS24351C2

Mouser Part No
504-LAN2VSAS24351C2

Eaton Electronics

Audio Transformers / Signal Transformers LAN Txfmr, 1000 BASE-T, 350uH, Assy Hdr, Single Port, 24pins, 1500Vac

Learn More

Datasheet

1,071Expected 2026/05/07

Cut Tape

$3.04

$2.22

$2.00

$1.76

Reel

$1.40

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,100

LAN Transformers

SMD/SMT

350 uH

1.5 kVAC

- 40 C

+ 85 C

1000 Base-T

SMD-24

16.6 mm

8.99 mm

2.72 mm

LANxV

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flybk Xfmr EFD25 Single Out 48W 12V 4A

POEB3FB1V48W1X12
Eaton Electronics
1: $4.21
98Expected 2026/06/08

Mfr. Part No.
POEB3FB1V48W1X12

Mouser Part No
504-POEB3FB1V48W1X12

Eaton Electronics

Audio Transformers / Signal Transformers Flybk Xfmr EFD25 Single Out 48W 12V 4A

Learn More

Datasheet

98Expected 2026/06/08

Cut Tape

$4.21

$4.08

$4.00

$3.91

Reel

$3.73

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 100

Flyback Transformers

SMD/SMT

30 uH

1.5 kVAC

- 40 C

+ 125 C

32.8 mm

26.8 mm

14.8 mm

POEB3FB

Reel, Cut Tape, MouseReel

Battery Management Systems

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11.5 uH
17.5 uH
30 uH
37 uH
40 uH
42.9 uH
60 uH
70 uH
90 uH
100 uH
100.5 uH
120 uH
120 uH, 350 uH
127 uH
140 uH
143 uH
150 uH
150 uH, 180 uH
155 uH
162 uH