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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Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
Type
Termination Style
Frequency Range
Inductance
Primary Impedance
Secondary Impedance
Isolation Voltage
Minimum Operating Temperature
Maximum Operating Temperature
Number of Channels
Application
Length
Width
Height
Series
Packaging
EPCOS / TDK Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 1-PORT
Datasheet
604In Stock
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
EPCOS / TDK Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 4-PORT
Datasheet
800In Stock
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
EPCOS / TDK Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT
Datasheet
5.702In Stock
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
EPCOS / TDK Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 1-PORT
Datasheet
1.056In Stock
700Expected 09/03/2026
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
EPCOS / TDK Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 2-PORT
Datasheet
506In Stock
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
EPCOS / TDK Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 1-PORT
Datasheet
700In Stock
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
EPCOS / TDK Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 1-PORT
Datasheet
508In Stock
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
EPCOS / TDK Audio Transformers / Signal Transformers 10/100 BASE-T -40C+85C 1-PORT
Datasheet
316In Stock
2.500Expected 19/06/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

LAN Transformers Module SMD/SMT 100 kHz 350 uH 1 Ohms 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
EPCOS / TDK Audio Transformers / Signal Transformers 10/100 BASE-T -40C+85C 1-PORT POE
Datasheet
239In Stock
500Expected 04/03/2026
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
EPCOS / TDK Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 2-PORT POE
Datasheet
Non-Stocked Lead-Time 15 Weeks
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
EPCOS / TDK Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT
Datasheet
Non-Stocked Lead-Time 15 Weeks
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
EPCOS / TDK Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 2-PORT POE
Datasheet
Non-Stocked Lead-Time 15 Weeks
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
EPCOS / TDK Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT
Datasheet
Non-Stocked Lead-Time 15 Weeks
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
EPCOS / TDK Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT POE
Datasheet
Non-Stocked Lead-Time 15 Weeks
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
EPCOS / TDK Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 4-PORT POE
Datasheet
Non-Stocked Lead-Time 15 Weeks
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
EPCOS / TDK Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 2-PORT
Datasheet
Non-Stocked Lead-Time 15 Weeks
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
EPCOS / TDK Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 1-PORT POE
Datasheet
Non-Stocked Lead-Time 15 Weeks
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