Audio Transformers / Signal Transformers

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Power Magnetics

Coilcraft is a global supplier of power magnetics, including power inductors, current sensors, and planar transformers designed for the highest efficiency performance. The wirewound inductors feature a ferrite or powdered iron core and come in a wide range of shapes and sizes. For an efficient power supply, key attributes of a power inductor are the inductance, the current, and the DC resistance (DCR).

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Part #

Audio Transformers / Signal Transformers DA2257 PoE Trnsfmr For TI LM5071/72

DA2257-ALD
Coilcraft
1: $5.21
1,040In Stock
1,750Expected 2026/11/23

Mfr. Part No.
DA2257-ALD

Mouser Part No
994-DA2257-ALD

Coilcraft

Audio Transformers / Signal Transformers DA2257 PoE Trnsfmr For TI LM5071/72

Learn More

Datasheet

1,040In Stock

1,750Expected 2026/11/23

Cut Tape

$5.21

$3.93

$3.76

$3.51

Reel

$3.21

View

MouseReel Available

Min.: 1
Mult.: 1

: 175

PoE Transformers

Flyback

SMD/SMT

250 kHz

35 uH

2 kV

- 40 C

+ 85 C

Single

13.46 mm

13 mm

12.7 mm

DA2257

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers FA2469 Flyback For STMicro STLC3075

FA2469-ALD
Coilcraft
1: $4.30
938In Stock
900Expected 2026/12/11

Mfr. Part No.
FA2469-ALD

Mouser Part No
994-FA2469-ALD

Coilcraft

Audio Transformers / Signal Transformers FA2469 Flyback For STMicro STLC3075

Learn More

Datasheet

938In Stock

900Expected 2026/12/11

Cut Tape

$4.30

$3.24

$3.09

$2.90

Reel

$2.56

View

MouseReel Available

Min.: 1
Mult.: 1

: 450

Flyback Transformers

Flyback

SMD/SMT

10 kHz

19 uH

1.5 kV

- 40 C

+ 85 C

Single

10.92 mm

8.6 mm

9.02 mm

FA2469

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers POE13P Flyback PoE 127uH 5.0 V 2.6 A

POE13P-50LD
Coilcraft
1: $5.62
1,115In Stock

Mfr. Part No.
POE13P-50LD

Mouser Part No
994-POE13P-50LD

Coilcraft

Audio Transformers / Signal Transformers POE13P Flyback PoE 127uH 5.0 V 2.6 A

Learn More

Datasheet

1,115In Stock

Cut Tape

$5.62

$4.24

$4.04

$3.78

Reel

$3.47

View

MouseReel Available

Min.: 1
Mult.: 1

: 175

PoE Transformers

Flyback

SMD/SMT

250 kHz

- 40 C

+ 85 C

Single

13.46 mm

13 mm

12.7 mm

POE13P

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers FA2805 SMT Flyback For Si341, Si3402

FA2805-CLD
Coilcraft
1: $5.18
840In Stock
2,275On Order

Mfr. Part No.
FA2805-CLD

Mouser Part No
994-FA2805-CLD

Coilcraft

Audio Transformers / Signal Transformers FA2805 SMT Flyback For Si341, Si3402

Learn More

Datasheet

840In Stock

2,275On Order

Cut Tape

$5.18

$3.91

$3.72

$3.49

Reel

$3.19

View

MouseReel Available

Min.: 1
Mult.: 1

: 175

Flyback Transformers

Flyback

SMD/SMT

200 kHz

40 uH

1.5 kV

- 40 C

+ 85 C

Single

13.46 mm

13 mm

12.7 mm

FA2805

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers POE300F Flyback PoE+ 30uH 5.0 V 6 A

POE300F-50LD
Coilcraft
1: $7.47
572In Stock

Mfr. Part No.
POE300F-50LD

Mouser Part No
994-POE300F-50LD

Coilcraft

Audio Transformers / Signal Transformers POE300F Flyback PoE+ 30uH 5.0 V 6 A

Learn More

Datasheet

572In Stock

Cut Tape

$7.47

$5.80

$5.56

$5.40

Reel

$5.01

View

MouseReel Available

Min.: 1
Mult.: 1

: 175

PoE Transformers

Flyback

SMD/SMT

250 kHz

- 40 C

+ 125 C

Single

21 mm

20.57 mm

11.43 mm

POE300F

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers POE70P Flyback 7uH 5.0 V 1.4 A

POE70P-50LD
Coilcraft
1: $4.42
2,419In Stock

Mfr. Part No.
POE70P-50LD

Mouser Part No
994-POE70P-50LD

Coilcraft

Audio Transformers / Signal Transformers POE70P Flyback 7uH 5.0 V 1.4 A

Learn More

Datasheet

2,419In Stock

Cut Tape

$4.42

$3.34

$3.20

Reel

$2.72

$2.64

$2.56

MouseReel Available

Min.: 1
Mult.: 1

: 200

PoE Transformers

Flyback

SMD/SMT

250 kHz

- 40 C

+ 85 C

Single

12.7 mm

10.5 mm

11 mm

POE70P

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers PL160 300W 0.0106Ohm Planar Trnsfmr

PL300-102L
Coilcraft
1: $15.34
140In Stock
175Expected 2026/09/25

Mfr. Part No.
PL300-102L

Mouser Part No
994-PL300-102L

Coilcraft

Audio Transformers / Signal Transformers PL160 300W 0.0106Ohm Planar Trnsfmr

Learn More

Datasheet

140In Stock

175Expected 2026/09/25

$15.34

$13.83

$13.26

$12.83

View

Min.: 1
Mult.: 1

Planar

Quick Connect

200 kHz to 700 kHz

423 uH

1.5 kV

- 40 C

+ 125 C

Single

29.46 mm

26.67 mm

11.4 mm

PL300

Tray

Audio Transformers / Signal Transformers DA2032 Cap Chrgr For Linear LT3750/51

DA2034-ALD
Coilcraft
1: $6.54
464In Stock
2,450On Order

Mfr. Part No.
DA2034-ALD

Mouser Part No
994-DA2034-ALD

Coilcraft

Audio Transformers / Signal Transformers DA2032 Cap Chrgr For Linear LT3750/51

Learn More

Datasheet

464In Stock

2,450On Order

Cut Tape

$6.54

$5.07

$4.87

$4.72

Reel

$4.38

View

MouseReel Available

Min.: 1
Mult.: 1

: 175

Flyback Transformers

Flyback

SMD/SMT

- 40 C

+ 125 C

Single

20.57 mm

21 mm

9.78 mm

DA2034

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers FA2470 Flyback For STMicro STLC3075

FA2470-ALD
Coilcraft
1: $4.22
801In Stock

Mfr. Part No.
FA2470-ALD

Mouser Part No
994-FA2470-ALD

Coilcraft

Audio Transformers / Signal Transformers FA2470 Flyback For STMicro STLC3075

Learn More

Datasheet

801In Stock

Cut Tape

$4.22

$3.19

$3.04

$2.85

Reel

$2.52

View

MouseReel Available

Min.: 1
Mult.: 1

: 450

Flyback Transformers

Flyback

SMD/SMT

10 kHz

- 40 C

+ 85 C

Single

10.92 mm

8.6 mm

9.02 mm

FA2470

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers POE30P Flyback PoE 3uH 12 V 0.25 A

POE30P-12LD
Coilcraft
1: $3.08
2,409In Stock

Mfr. Part No.
POE30P-12LD

Mouser Part No
994-POE30P-12LD

Coilcraft

Audio Transformers / Signal Transformers POE30P Flyback PoE 3uH 12 V 0.25 A

Learn More

Datasheet

2,409In Stock

Cut Tape

$3.08

$2.33

$2.24

Reel

$1.90

$1.84

$1.79

MouseReel Available

Min.: 1
Mult.: 1

: 350

PoE Transformers

Flyback

SMD/SMT

250 kHz

- 40 C

+ 85 C

Single

10.92 mm

8.6 mm

9.02 mm

POE30P

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers FA2924 SMT Flyback For Si341, Si3402

FA2924-ALD
Coilcraft
1: $4.69
2,069In Stock

Mfr. Part No.
FA2924-ALD

Mouser Part No
994-FA2924-ALD

Coilcraft

Audio Transformers / Signal Transformers FA2924 SMT Flyback For Si341, Si3402

Learn More

Datasheet

2,069In Stock

Cut Tape

$4.69

$3.55

$3.40

Reel

$2.90

$2.80

$2.72

MouseReel Available

Min.: 1
Mult.: 1

: 175

Flyback Transformers

Flyback

SMD/SMT

200 kHz

40 uH

1.5 kV

- 40 C

+ 85 C

Single

13.46 mm

13 mm

12.7 mm

FA2924

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers POE300F Flyback PoE+ 30uH 24 V 1.25 A

POE300F-24LD
Coilcraft
1: $7.47
419In Stock

Mfr. Part No.
POE300F-24LD

Mouser Part No
994-POE300F-24LD

Coilcraft

Audio Transformers / Signal Transformers POE300F Flyback PoE+ 30uH 24 V 1.25 A

Learn More

Datasheet

419In Stock

Cut Tape

$7.47

$5.90

Reel

$5.01

$4.85

$4.70

MouseReel Available

Min.: 1
Mult.: 1

: 175

PoE Transformers

Flyback

SMD/SMT

250 kHz

- 40 C

+ 125 C

Single

21 mm

20.57 mm

11.43 mm

POE300F

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers C1174 for TPS23750 10uH 5.0 V 2 A

C1174-ALD
Coilcraft
1: $6.66
99In Stock

Mfr. Part No.
C1174-ALD

Mouser Part No
994-C1174-ALD

Coilcraft

Audio Transformers / Signal Transformers C1174 for TPS23750 10uH 5.0 V 2 A

Learn More

Datasheet

99In Stock

Cut Tape

$6.66

$5.04

$4.79

$4.49

Reel

$4.11

View

MouseReel Available

Min.: 1
Mult.: 1

: 200

Flyback Transformers

Flyback

SMD/SMT

500 kHz

150 uH

1.5 kV

- 40 C

+ 125 C

Single

17.2 mm

14.98 mm

8.51 mm

C1174

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers GA3544 for TI UCD3K 5uH 12 V 0.2 A

GA3544-BL
Coilcraft
1: $7.26
90In Stock

Mfr. Part No.
GA3544-BL

Mouser Part No
994-GA3544-BL

Coilcraft

Audio Transformers / Signal Transformers GA3544 for TI UCD3K 5uH 12 V 0.2 A

Learn More

Datasheet

90In Stock

$7.26

$6.00

$5.76

$5.58

View

Min.: 1
Mult.: 1

Flyback Transformers

Flyback

Through Hole

100 kHz

2.3 mH

3 kV

- 40 C

+ 85 C

Single

21.1 mm

17.3 mm

GA3544

Tray

Audio Transformers / Signal Transformers JA4635 Flyback 110 Vac 10.5A

JA4635-AL
Coilcraft
1: $18.38
2In Stock

Mfr. Part No.
JA4635-AL

Mouser Part No
994-JA4635-AL

Coilcraft

Audio Transformers / Signal Transformers JA4635 Flyback 110 Vac 10.5A

Learn More

Datasheet

2In Stock

$18.38

$16.54

$15.86

$15.36

View

Min.: 1
Mult.: 1

Flyback Transformers

Flyback

Through Hole

150 kHz

28 uH

3 kV

- 40 C

+ 85 C

45.72 mm

47.72 mm

30.48 mm

JA4635

Tray

Audio Transformers / Signal Transformers POE60F Flyback For PoE 6W

POE60F-50LD
Coilcraft
1: $4.85
176In Stock

Mfr. Part No.
POE60F-50LD

Mouser Part No
994-POE60F-50LD

Coilcraft

Audio Transformers / Signal Transformers POE60F Flyback For PoE 6W

Learn More

Datasheet

176In Stock

Cut Tape

$4.85

$3.66

$3.49

$3.27

Reel

$2.99

View

MouseReel Available

Min.: 1
Mult.: 1

: 200

PoE Transformers

Flyback

POE60F

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers B0570 for NCP101X 15uH 12 V 1.25 A

B0570-BL
Coilcraft
1: $9.58
55In Stock

Mfr. Part No.
B0570-BL

Mouser Part No
994-B0570-BL

Coilcraft

Audio Transformers / Signal Transformers B0570 for NCP101X 15uH 12 V 1.25 A

Learn More

Datasheet

55In Stock

$9.58

$8.11

$7.78

$7.36

View

Min.: 1
Mult.: 1

Flyback Transformers

Flyback

Through Hole

100 kHz

3.4 mH

3 kV

- 40 C

+ 85 C

Single

27.94 mm

27.84 mm

24.13 mm

B0570

Tray

Audio Transformers / Signal Transformers C1586 TI LM5070 13uH 12 V 1.08 A

C1586-ALD
Coilcraft
1: $4.94
67In Stock

Mfr. Part No.
C1586-ALD

Mouser Part No
994-C1586-ALD

Coilcraft

Audio Transformers / Signal Transformers C1586 TI LM5070 13uH 12 V 1.08 A

Learn More

Datasheet

67In Stock

Cut Tape

$4.94

$3.73

$3.56

$3.33

Reel

$3.05

View

MouseReel Available

Min.: 1
Mult.: 1

: 175

Flyback Transformers

Flyback

SMD/SMT

250 kHz

127 uH

1.5 kV

- 40 C

+ 85 C

Single

13.46 mm

13 mm

12.7 mm

C1586

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers FA2925 SMT Flyback For Si341, Si3402

FA2925-ALD
Coilcraft
1: $5.02
135In Stock

Mfr. Part No.
FA2925-ALD

Mouser Part No
994-FA2925-ALD

Coilcraft

Audio Transformers / Signal Transformers FA2925 SMT Flyback For Si341, Si3402

Learn More

Datasheet

135In Stock

Cut Tape

$5.02

$3.79

$3.61

$3.38

Reel

$3.09

View

MouseReel Available

Min.: 1
Mult.: 1

: 175

Flyback Transformers

Flyback

SMD/SMT

200 kHz

40 uH

1.5 kV

- 40 C

+ 85 C

Single

13.46 mm

13 mm

12.7 mm

FA2925

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers GA3172 Flyback For PIC16HV785

GA3172-AL
Coilcraft
1: $7.42
1In Stock

Mfr. Part No.
GA3172-AL

Mouser Part No
994-GA3172-AL

Coilcraft

Audio Transformers / Signal Transformers GA3172 Flyback For PIC16HV785

Learn More

Datasheet

1In Stock

$7.42

$6.14

$5.90

$5.71

View

Min.: 1
Mult.: 1

Flyback Transformers

Flyback

Through Hole

125 kHz

500 uH

3 kV

- 40 C

+ 85 C

Single

22.25 mm

14.25 mm

23.74 mm

GA3172

Tray

Audio Transformers / Signal Transformers POE13P Flyback PoE 13uH 19.5 V 0.67 A

POE13P-19LD
Coilcraft
1: $3.63
95In Stock

Mfr. Part No.
POE13P-19LD

Mouser Part No
994-POE13P-19LD

Coilcraft

Audio Transformers / Signal Transformers POE13P Flyback PoE 13uH 19.5 V 0.67 A

Learn More

Datasheet

95In Stock

Cut Tape

$3.63

$2.74

$2.61

$2.44

Reel

$2.23

View

MouseReel Available

Min.: 1
Mult.: 1

: 175

PoE Transformers

Flyback

POE13P

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers NA5730 SMT Flyback For TI TPS23751/2

NA5730-ALD
Coilcraft
1: $6.97
51In Stock

Mfr. Part No.
NA5730-ALD

Mouser Part No
994-NA5730-ALD

Coilcraft

Audio Transformers / Signal Transformers NA5730 SMT Flyback For TI TPS23751/2

Learn More

Datasheet

51In Stock

Cut Tape

$6.97

$5.40

$5.19

$5.04

Reel

$4.68

View

MouseReel Available

Min.: 1
Mult.: 1

: 175

Flyback Transformers

Flyback

SMD/SMT

250 kHz

- 40 C

+ 125 C

Single

21 mm

20.57 mm

11.43 mm

NA5730

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers POE30P Flyback PoE 3uH 3.3 V 0.91 A

POE30P-33LD
Coilcraft
1: $3.72
127In Stock
700Expected 2026/09/25

Mfr. Part No.
POE30P-33LD

Mouser Part No
994-POE30P-33LD

Coilcraft

Audio Transformers / Signal Transformers POE30P Flyback PoE 3uH 3.3 V 0.91 A

Learn More

Datasheet

127In Stock

700Expected 2026/09/25

Cut Tape

$3.72

$2.81

$2.67

$2.51

Reel

$2.30

View

MouseReel Available

Min.: 1
Mult.: 1

: 350

PoE Transformers

Flyback

SMD/SMT

250 kHz

- 40 C

+ 85 C

Single

10.92 mm

8.6 mm

9.02 mm

POE30P

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers HA3803 Flyback For TI TPS23753

HA3803-BLD
Coilcraft
1: $7.19
50In Stock
200Expected 2026/12/07

Mfr. Part No.
HA3803-BLD

Mouser Part No
994-HA3803-BLD

Coilcraft

Audio Transformers / Signal Transformers HA3803 Flyback For TI TPS23753

Learn More

Datasheet

50In Stock

200Expected 2026/12/07

Cut Tape

$7.19

$5.58

$5.36

$5.19

Reel

$4.83

View

MouseReel Available

Min.: 1
Mult.: 1

: 200

Flyback Transformers

Flyback

SMD/SMT

100 kHz

166.5 uH

1.5 kV

- 40 C

+ 125 C

Single

17.2 mm

14.98 mm

8.51 mm

HA3803

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers HA3994 for LT3751 15 V, -15 V 3.6 A

HA3994-AL
Coilcraft
1: $7.48
72In Stock

Mfr. Part No.
HA3994-AL

Mouser Part No
994-HA3994-AL

Coilcraft

Audio Transformers / Signal Transformers HA3994 for LT3751 15 V, -15 V 3.6 A

Learn More

Datasheet

72In Stock

$7.48

$6.19

$5.94

$5.76

View

Min.: 1
Mult.: 1

Flyback Transformers

Flyback

SMD/SMT

100 kHz

7.5 uH

1.5 kV

- 40 C

+ 85 C

Single

26.75 mm

26 mm

14 mm

HA3994

Tray

Power Magnetics

Customer Service Office

Company

Resources

Support

2.5 uH
4 uH
5 uH
7.5 uH
10 uH
12 uH
15 uH
16 uH
19 uH
26 uH
28 uH
35 uH
40 uH
60 uH
70 uH
80 uH
110 uH
125 uH
127 uH
133 uH

6.8 mm
10.92 mm
12.7 mm
13.46 mm
17 mm
17.2 mm
17.65 mm
18 mm
18.6 mm
20.1 mm
20.57 mm
20.7 mm
20.83 mm
20.9 mm
21 mm
21.1 mm
22.25 mm
23.11 mm
23.37 mm
26 mm

6.2 mm
8.6 mm
10.5 mm
13 mm
14.25 mm
14.98 mm
15.75 mm
16.5 mm
17 mm
18.3 mm
19 mm
20.1 mm
20.5 mm
20.57 mm
20.9 mm
21 mm
21.1 mm
23.37 mm
26 mm
26.67 mm

4.6 mm
8.26 mm
8.51 mm
8.89 mm
8.94 mm
9.02 mm
9.14 mm
9.53 mm
9.78 mm
10.16 mm
10.4 mm
10.66 mm
10.8 mm
11 mm
11.4 mm
11.43 mm
12 mm
12.1 mm
12.5 mm
12.7 mm

A9619
A9967
B0226
B0570
B0695
C1023
C1048
C1099
C1173
C1174
C1453
C1495
C1585
C1586
C1587
C1588
C1589
C1590
C1591
C1592