ONEIC.US
  1. Home
  2. Manufacturer
  3. TDK Electronics AG

  4. Audio Transformers

TDK Electronics AG

TDK Electronics AG- Audio Transformers

TDK Electronics AG, formerly known as EPCOS AG, is a leading global manufacturer of electronic components, modules and systems. Headquartered in Munich, Germany, the company was originally founded as a joint venture between Siemens and Matsushita in 1989, later becoming EPCOS AG, and was acquired by TDK Corporation of Japan in 2008. Today, the EPCOS brand is a product brand of TDK Electronics AG, focusing on passive electronic components such as capacitors, inductors, and surface acoustic wave (SAW) filters. The company offers an extensive portfolio of over 40,000 products, including aluminum electrolytic capacitors, film capacitors, multilayer ceramic capacitors (MLCCs), ferrites and inductors, and SAW components for frequency control and filtering. These components serve key markets including automotive electronics, industrial electronics, information and communication technology, and consumer electronics. TDK Electronics AG is renowned for its advanced ceramic technologies, delivering high-performance solutions in miniaturization, reliability, and environmental resistance. The company maintains a global manufacturing and sales network, with facilities in Europe, Asia, and the Americas. As part of the TDK Group, one of the world’s largest electronic component manufacturers, the EPCOS brand benefits from extensive R&D resources and a broad application reach. Its components are widely used in powertrain systems, advanced driver-assistance systems (ADAS), renewable energy inverters, and 5G base stations, making it a preferred supplier for tier-1 automotive and industrial OEMs. With a strong legacy in innovation and quality, TDK Electronics AG continues to shape the future of passive components through developments in material science and manufacturing precision.

03

Audio Transformers - 型号列表

17 parts in total

Other Names

Part # Aliases

Width

Size / Dimension

Height

Length

Package / Case

Supplier Device Package

Standard Package

Factory Pack Quantity

Product Type

Frequency Range

Packaging

Type

Operating Temperature

Return Loss (Min)

Insertion Loss (Max)

Depth

Length - Overall

Transformer Type

Number of Contacts

Mfr Part #Quantity AvailablePriceProductOther NamesPart # AliasesProduct CategoryStandard PackageFactory Pack QuantityRoHSInductanceWidthHeightLengthPackagingMounting TypePackage / CaseSize / DimensionTermination StyleSupplier Device PackageOperating TemperatureFrequency RangeCurrent Rating (Max)Product TypeVoltage - IsolationImpedance - Secondary (Ohms)TypeSeriesEU RoHSIsolationInductance RangeReturn Loss (Min)Insertion Loss (Max)Turns Ratio - Primary:SecondaryDepthLead StyleLength - OverallTransformer TypeNumber of ContactsImpedance - Primary (Ohms)Output Configuration
B78476A8247A3
B78476A8247A3

Transformers Audio & Signal 10/100 BASE-T -40C+85C 1-PORT MODULE MAGNETIC LAN 1-PORT SMD LANMODULET4222

EPCOS

20991: ¥21.216LAN Transformers495-4025-2B78476A8247A003Transformers Audio & Signal500500Lead free / RoHS Compliant350 uH6.9 mm5.6 mm12.7 mmTape & Reel (TR)Surface Mount16-SMD Module12.7 mm L x 6.9 mm W x 5.6 mm HSMD/SMT16-SMD- 40 C to + 85 C100 kHz8 mAModules-1 Ohms CT10/100 Base-T Magnetics ModuleB78476A-----------1 Ohms CTSurface Mount
B78476A1889A3
B78476A1889A3

Transformers Audio & Signal 10/100 BASE-T 0C-70C 2-PORT POE MODULE MAGNETIC LAN 2-PORT SMD LANMODULET0282

EPCOS

18461: ¥38.556LAN Transformers495-4023-2B78476A1889A003Transformers Audio & Signal400400Lead free / RoHS Compliant350 uH6.9 mm5.6 mm12.7 mmTape & Reel (TR)Surface Mount24-SMD Module12.7 mm L x 6.9 mm W x 5.6 mm HSMD/SMT24-SMD0 C to + 70 C100 kHz to 100 MHz8 mA10/100 Base-T Magnetics Modules1.5 kV----------------
B78476A8067A3
B78476A8067A3

Transformers Audio & Signal 10/100 BASE-T 0C-70C 1-PORT MODULE MAGNETIC LAN 1-PORT SMD LANMODULET3569

EPCOS

10145: ¥25.432LAN Transformers495-4018-2B78476A8067A003Transformers Audio & Signal400400Lead free / RoHS Compliant350 uH11.7 mm5.15 mm14.81 mmTape & Reel (TR)Surface Mount12-SMD Module14.81 mm L x 11.7 mm W x 5.15 mm HSMD/SMT12-SMD0 C to + 70 C--------------------
B78476A8248A3
B78476A8248A3

Transformers Audio & Signal 10/100 BASE-T -40C+85C 1-PORT POE MODULE MAGNETIC LAN 1-PORT SMD LANMODULET4223

EPCOS

3000500: ¥11.866LAN Transformers495-4026-2B78476A8248A003Transformers Audio & Signal500500Lead free / RoHS Compliant350 uH6.9 mm5.6 mm12.7 mmTape & Reel (TR)Surface Mount16-SMD Module12.7 mm L x 6.9 mm W x 5.6 mm HSMD/SMT16-SMD- 40 C to + 85 C100 kHz to 100 MHz8 mA10/100 Base-T Magnetics Modules1.5 kV----------------
B78476A8245A3
B78476A8245A3

Transformers Audio & Signal 10/100 BASE-T 0C-70C 1-PORT POE MODULE MAGNETIC LAN 1-PORT SMD LANMODULET4220

EPCOS

28321: ¥19.924LAN Transformers495-4022-2B78476A8245A003Transformers Audio & Signal500500Lead free / RoHS Compliant350 uH11.9 mm5.5 mm28.1 mmTape & Reel (TR)Surface Mount16-SMD Module28.1 mm L x 11.9 mm W x 5.5 mm HSMD/SMT16-SMD0 C to + 70 C100 kHz to 100 MHz8 mA10/100 Base-T Magnetics Modules1.5 kV----------------
B78476A7694A3
B78476A7694A3

Transformers Audio & Signal 10/100 BASE-T 0C-70C 1-PORT MODULE MAGNETIC LAN 1-PORT SMD LANMODULET2328

EPCOS

10145: ¥25.432LAN Transformers495-4019-2B78476A7694A003Transformers Audio & Signal400400Lead free / RoHS Compliant350 uH13.1 mm6.1 mm25.4 mmTape & Reel (TR)Surface Mount16-SMD Module25.4 mm L x 13.1 mm W x 6.1 mm HSMD/SMT16-SMD0 C to + 70 C100 kHz to 100 MHz8 mA10/100 Base-T Magnetics Modules1.5 kV----------------
B78476A8246A3
B78476A8246A3

Transformers Audio & Signal 10/100 BASE-T 0C-70C 4-PORT POE Telecom Transformer 1CT:1CT 1500VAC -1.1dB Surface Mount MODULE MAGNETIC LAN 4-PORT SMD LANMODULET4221

EPCOS

101: ¥56.168LAN Transformers495-4024-2B78476A8246A003Transformers Audio & Signal300300Lead free / RoHS Compliant350 uH12.19 mm7.24 mm27.81 mmTape and ReelSurface Mount48-SMD Module27.81 mm L x 12.19 mm W x 7.24 mm HSMD/SMT48-SMD0 C to + 70 C100 kHz to 100 MHz8 mA10/100 Base-T Magnetics Modules1.5 kV---Compliant1500VAC0.35(Min)-12@60MHz to 80MHz-1.1@0.1MHz to 100MHz1CT:1CT15.24Gull Wing27.8110/100Base-T Magnetics Transformer48--
B78476A8065A3
B78476A8065A3

Transformers Audio & Signal 10/100 BASE-T 0C-70C 1-PORT MODULE MAGNETIC LAN 1-PORT SMD LANMODULET3393

EPCOS

9491: ¥19.924LAN Transformers495-4020-2B78476A8065A003Transformers Audio & Signal500500Lead free / RoHS Compliant350 uH7.11 mm5.6 mm12.7 mmTape & Reel (TR)Surface Mount16-SMD Module12.7 mm L x 7.11 mm W x 5.6 mm HSMD/SMT16-SMD0 C to + 70 C100 kHz to 100 MHz8 mA10/100 Base-T Magnetics Modules1.5 kV----------------
B78476A8135A3
B78476A8135A3

Transformers Audio & Signal 1000 BASE-T -40C+85C 1-PORT Telecom Transformer 1CT:1CT 24Term. Gull Wing SMD MODULE MAGNETIC LAN 1-PORT SMD LANMODULET3631

EPCOS

6321: ¥38.556LAN Transformers495-4033-2B78476A8135A003Transformers Audio & Signal400400Lead free / RoHS Compliant350 uH15.2 mm5.72 mm13.8 mmTape and ReelSurface Mount24-SMD Module13.8 mm L x 15.2 mm W x 5.72 mm HSMD/SMT24-SMD- 40 C to + 85 C100 kHz8 mAModules-1 Ohms CT1000 Base-T Magnetics ModuleB78476ACompliant1500VAC0.35(Min)-10@100MHz-1@1MHz to 100MHz1CT:1CT18.7Gull Wing13.81000Base-T Magnetics Modules Tran...24--
B78476A8068A3
B78476A8068A3

Transformers Audio & Signal 10/100 BASE-T 0C-70C 4-PORT MODULE MAGNETIC LAN 4-PORT SMD LANMODULET3570

EPCOS

10140: ¥45.356LAN Transformers495-4021-2B78476A8068A003Transformers Audio & Signal350350Lead free / RoHS Compliant350 uH11.94 mm6.22 mm13.64 mmTape & Reel (TR)Surface Mount44-SMD Module13.64 mm L x 11.94 mm W x 6.22 mm HSMD/SMT44-SMD0 C to + 70 C--------------------
B78476A8250A3
B78476A8250A3

Transformers Audio & Signal 1000 BASE-T 0C-70C 2-PORT MODULE MAGNETIC LAN 2-PORT SMD LANMODULET4225

EPCOS

1400350: ¥26.3026LAN Transformers495-4029-2B78476A8250A003Transformers Audio & Signal350350Lead free / RoHS Compliant350 uH12.1 mm5.8 mm17.6 mmTape & Reel (TR)Surface Mount50-SMD Module17.6 mm L x 12.1 mm W x 5.8 mm HSMD/SMT50-SMD0 C to + 70 C--------------------
B78476A8253A3
B78476A8253A3

Transformers Audio & Signal 1000 BASE-T 0C-70C 1-PORT POE MODULE MAGNETIC LAN 1-PORT SMD LANMODULET4228

EPCOS

3668931: ¥4.964LAN Transformers495-4030-2B78476A8253A003Transformers Audio & Signal350350Lead free / RoHS Compliant350 uH7.29 mm8.41 mm27.69 mmTape & Reel (TR)Surface Mount24-SMD Module27.69 mm L x 7.29 mm W x 8.41 mm HSMD/SMT24-SMD0 C to + 70 C100 kHz to 100 MHz8 mA1000 Base-T Magnetics Modules1.5 kV----------------
B78476A8249A3
B78476A8249A3

Transformers Audio & Signal 1000 BASE-T 0C-70C 1-PORT MODULE MAGNETIC LAN 1-PORT SMD LANMODULET4224

EPCOS

101: ¥39.916LAN Transformers495-4028-2B78476A8249A003Transformers Audio & Signal350350Lead free / RoHS Compliant350 uH12.1 mm5.8 mm17.6 mmTape & Reel (TR)Surface Mount24-SMD Module17.6 mm L x 12.1 mm W x 5.8 mm HSMD/SMT24-SMD0 C to + 70 C100 kHz to 100 MHz8 mA1000 Base-T Magnetics Modules1.5 kV----------------
B78476A8251A3
B78476A8251A3

Transformers Audio & Signal 1000 BASE-T -40C+85C 1-PORT MODULE MAGNETIC LAN 1-PORT SMD LANMODULET4226

EPCOS

101: ¥39.916LAN Transformers495-4032-2B78476A8251A003Transformers Audio & Signal350350Lead free / RoHS Compliant350 uH12.1 mm5.8 mm17.6 mmTape & Reel (TR)Surface Mount24-SMD Module17.6 mm L x 12.1 mm W x 5.8 mm HSMD/SMT24-SMD- 40 C to + 85 C100 kHz to 100 MHz8 mA1000 Base-T Magnetics Modules1.5 kV----------------
B78476A8066A3
B78476A8066A3

Transformers Audio & Signal 1000 BASE-T 0C-70C 2-PORT POE MODULE MAGNETIC LAN 2-PORT SMD LANMODULET2417

EPCOS

991: ¥75.004LAN Transformers495-4031-2B78476A8066A003Transformers Audio & Signal300300Lead free / RoHS Compliant350 uH12.19 mm7.24 mm27.81 mmTape & Reel (TR)Surface Mount16-SMD Module27.81 mm L x 12.19 mm W x 7.24 mm HSMD/SMT16-SMD0 C to + 70 C--------------------
B78476A8252A3
B78476A8252A3

Transformers Audio & Signal 1000 BASE-T -40C+85C 2-PORT MODULE MAGNETIC LAN 2-PORT SMD LANMODULET4227

EPCOS

10140: ¥45.356LAN Transformers495-4034-2B78476A8252A003Transformers Audio & Signal350350Lead free / RoHS Compliant350 uH7.29 mm8.41 mm27.69 mmTape & Reel (TR)Surface Mount50-SMD Module27.69 mm L x 7.29 mm W x 8.41 mm HSMD/SMT50-SMD- 40 C to + 85 C--------------------
B78476A8317A3
B78476A8317A3

Transformers Audio & Signal 1000 BASE-T 0C-70C 1-PORT MODULE MAGNETIC LAN 1-PORT SMD LANMODULET4440

EPCOS

391991: ¥5.916LAN Transformers495-4027-2B78476A8317A003Transformers Audio & Signal350350Lead free / RoHS Compliant350 uH12.1 mm5.8 mm17.6 mmTape & Reel (TR)Surface Mount24-SMD Module17.6 mm L x 12.1 mm W x 5.8 mm HSMD/SMT24-SMD0 C to + 70 C100 kHz to 100 MHz8 mA1000 Base-T Magnetics Modules1.5 kV----------------
Page 1 / 1
1