Audio Transformers / Signal Transformers

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B78476 10/100 Base-T Commercial Magnetics Modules

EPCOS/TDK B78476 SMD 10/100 Base-T Commercial Magnetics Modules are for LAN applications and feature an extended temperature range of -40°C to +85°C and a ferrite toroid with UL 94 V-0 case and potting. The devices offer a 1CT:1CT turns ratio with options of single, dual, or quad ports. The modules are optimized for all major transceiver ICs and come in an industry standard footprint. EPCOS 10/100 Base-T Magnetics Modules are compliant with IPC/JEDEC J-STD-020C and IEEE 802.3, MSL level 2, and are RoHS Compliant.

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Results: 17

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Part #

Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 1-PORT

B78476A8249A003
EPCOS / TDK
1: 15,64 RON
604In Stock

Mfr. Part No.
B78476A8249A003

Mouser Part No
871-B78476A8249A3

EPCOS / TDK

Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 1-PORT

Learn More

Datasheet

604In Stock

Cut Tape

15,64 RON

14,18 RON

13,58 RON

13,13 RON

Reel

10,36 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 350

LAN Transformers

Module

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Single

1000 Base-T

17.6 mm

12.1 mm

5.8 mm

B78476A

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 4-PORT

B78476A8068A003
EPCOS / TDK
1: 23,14 RON
800In Stock

Mfr. Part No.
B78476A8068A003

Mouser Part No
871-B78476A8068A3

EPCOS / TDK

Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 4-PORT

Learn More

Datasheet

800In Stock

Cut Tape

23,14 RON

20,87 RON

19,92 RON

19,32 RON

Reel

15,09 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 350

LAN Transformers

Module

SMD/SMT

350 uH

0 C

+ 70 C

Dual

10/100 Base-T PoE

13.64 mm

11.94 mm

6.22 mm

B78476A

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT

B78476A8065A003
EPCOS / TDK
1: 7,60 RON
5.582In Stock

Mfr. Part No.
B78476A8065A003

Mouser Part No
871-B78476A8065A3

EPCOS / TDK

Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT

Learn More

Datasheet

5.582In Stock

Cut Tape

7,60 RON

6,94 RON

6,44 RON

6,24 RON

Reel

5,43 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

LAN Transformers

Module

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Single

10/100 Base-T

12.7 mm

7.11 mm

5.6 mm

B78476A

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 1-PORT

B78476A8251A003
EPCOS / TDK
1: 15,64 RON
1.056In Stock
700Expected 3/9/2026

Mfr. Part No.
B78476A8251A003

Mouser Part No
871-B78476A8251A3

EPCOS / TDK

Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 1-PORT

Learn More

Datasheet

1.056In Stock

700Expected 3/9/2026

Cut Tape

15,64 RON

14,18 RON

13,63 RON

13,18 RON

Reel

11,47 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 350

LAN Transformers

Module

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kV

- 40 C

+ 85 C

Single

1000 Base-T

17.6 mm

12.1 mm

5.8 mm

B78476A

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 2-PORT

B78476A8252A003
EPCOS / TDK
1: 23,09 RON
506In Stock

Mfr. Part No.
B78476A8252A003

Mouser Part No
871-B78476A8252A3

EPCOS / TDK

Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 2-PORT

Learn More

Datasheet

506In Stock

Cut Tape

23,09 RON

20,87 RON

20,02 RON

19,42 RON

Reel

16,80 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 350

LAN Transformers

Module

SMD/SMT

350 uH

- 40 C

+ 85 C

Dual

1000 Base-T

27.69 mm

7.29 mm

8.41 mm

B78476A

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 1-PORT

B78476A8317A003
EPCOS / TDK
1: 15,64 RON
700In Stock

Mfr. Part No.
B78476A8317A003

Mouser Part No
871-B78476A8317A3

EPCOS / TDK

Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 1-PORT

Learn More

Datasheet

700In Stock

Cut Tape

15,64 RON

14,18 RON

13,63 RON

13,18 RON

Reel

11,47 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 350

LAN Transformers

Module

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Single

1000 Base-T

17.6 mm

12.1 mm

5.8 mm

B78476A

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 1-PORT

B78476A8135A003
EPCOS / TDK
1: 15,64 RON
508In Stock

Mfr. Part No.
B78476A8135A003

Mouser Part No
871-B78476A8135A3

EPCOS / TDK

Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 1-PORT

Learn More

Datasheet

508In Stock

Cut Tape

15,64 RON

14,18 RON

13,58 RON

13,13 RON

Reel

11,12 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 400

LAN Transformers

Module

SMD/SMT

100 kHz

350 uH

1 Ohms

- 40 C

+ 85 C

Single

1000 Base-T

13.8 mm

15.2 mm

5.72 mm

B78476A

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 10/100 BASE-T -40C+85C 1-PORT

B78476A8247A003
EPCOS / TDK
1: 9,10 RON
284In Stock
2.500Expected 3/20/2026

Mfr. Part No.
B78476A8247A003

Mouser Part No
871-B78476A8247A3

EPCOS / TDK

Audio Transformers / Signal Transformers 10/100 BASE-T -40C+85C 1-PORT

Learn More

Datasheet

284In Stock

2.500Expected 3/20/2026

Cut Tape

9,10 RON

8,30 RON

7,75 RON

7,49 RON

Reel

6,04 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

LAN Transformers

Module

SMD/SMT

100 kHz

350 uH

1 Ohms

- 40 C

+ 85 C

Single

10/100 Base-T

12.7 mm

6.9 mm

5.6 mm

B78476A

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 10/100 BASE-T -40C+85C 1-PORT POE

B78476A8248A003
EPCOS / TDK
1: 9,10 RON
239In Stock
500Expected 3/4/2026

Mfr. Part No.
B78476A8248A003

Mouser Part No
871-B78476A8248A3

EPCOS / TDK

Audio Transformers / Signal Transformers 10/100 BASE-T -40C+85C 1-PORT POE

Learn More

Datasheet

239In Stock

500Expected 3/4/2026

Cut Tape

9,10 RON

8,30 RON

7,75 RON

7,49 RON

7,19 RON

Reel

6,94 RON

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

LAN Transformers

Module

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kV

- 40 C

+ 85 C

Single

10/100 Base-T PoE

12.7 mm

6.9 mm

5.6 mm

B78476A

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 2-PORT POE

B78476A1889A003
EPCOS / TDK
1: 17,15 RON
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
B78476A1889A003

Mouser Part No
871-B78476A1889A3

EPCOS / TDK

Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 2-PORT POE

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

Cut Tape

17,15 RON

15,29 RON

14,64 RON

14,13 RON

Reel

9,26 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 400

LAN Transformers

Module

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Dual

10/100 Base-T PoE

12.7 mm

6.9 mm

5.6 mm

B78476A

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT

B78476A7694A003
EPCOS / TDK
1: 12,42 RON
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
B78476A7694A003

Mouser Part No
871-B78476A7694A3

EPCOS / TDK

Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

Cut Tape

12,42 RON

11,27 RON

10,76 RON

10,46 RON

Reel

8,55 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 400

LAN Transformers

Module

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Single

10/100 Base-T

25.4 mm

13.1 mm

6.1 mm

B78476A

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 2-PORT POE

B78476A8066A003
EPCOS / TDK
300: 21,88 RON
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
B78476A8066A003

Mouser Part No
871-B78476A8066A3

EPCOS / TDK

Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 2-PORT POE

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

Reel

21,88 RON

21,33 RON

Min.: 300
Mult.: 300

Reel: 300

LAN Transformers

Module

SMD/SMT

350 uH

0 C

+ 70 C

Dual

1000 Base-T PoE

27.81 mm

12.19 mm

7.24 mm

B78476A

Reel

Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT

B78476A8067A003
EPCOS / TDK
2.000: 8,15 RON
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
B78476A8067A003

Mouser Part No
871-B78476A8067A3

EPCOS / TDK

Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

Cut Tape

8,15 RON

7,85 RON

MouseReel Available

Min.: 2.000
Mult.: 2.000

Reel: 400

LAN Transformers

Module

SMD/SMT

350 uH

0 C

+ 70 C

Single

10/100 Base-T

14.81 mm

11.7 mm

5.15 mm

B78476A

Reel

Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT POE

B78476A8245A003
EPCOS / TDK
1: 8,55 RON
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
B78476A8245A003

Mouser Part No
871-B78476A8245A3

EPCOS / TDK

Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT POE

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

Cut Tape

8,55 RON

7,80 RON

7,24 RON

6,99 RON

Reel

6,19 RON

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

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

28.1 mm

11.9 mm

5.5 mm

B78476A

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 4-PORT POE

B78476A8246A003
EPCOS / TDK
300: 16,25 RON
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
B78476A8246A003

Mouser Part No
871-B78476A8246A3

EPCOS / TDK

Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 4-PORT POE

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

Reel

16,25 RON

15,49 RON

Min.: 300
Mult.: 300

Reel: 300

LAN Transformers

Module

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Quad

10/100 Base-T PoE

27.81 mm

12.19 mm

7.24 mm

B78476A

Reel

Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 2-PORT

B78476A8250A003
EPCOS / TDK
350: 16,85 RON
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
B78476A8250A003

Mouser Part No
871-B78476A8250A3

EPCOS / TDK

Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 2-PORT

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

Reel

16,85 RON

16,15 RON

15,59 RON

14,84 RON

Min.: 350
Mult.: 350

Reel: 350

LAN Transformers

Module

SMD/SMT

350 uH

0 C

+ 70 C

Single

1000 Base-T PoE

17.6 mm

12.1 mm

5.7 mm

B78476A

Reel

Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 1-PORT POE

B78476A8253A003
EPCOS / TDK
350: 11,32 RON
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
B78476A8253A003

Mouser Part No
871-B78476A8253A3

EPCOS / TDK

Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 1-PORT POE

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

Reel

11,32 RON

11,02 RON

Min.: 350
Mult.: 350

Reel: 350

LAN Transformers

Module

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Single

1000 Base-T PoE

17.6 mm

12.1 mm

5.7 mm

B78476A

Reel

B78476 10/100 Base-T Commercial Magnetics Modules

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