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TDK Electronics AG

TDK Electronics AG- 音频变压器

TDK Electronics AG，前身为爱普科斯（EPCOS AG），是全球领先的电子元件、模块和系统制造商，总部位于德国慕尼黑。公司最初于1989年由西门子和松下合资成立，后独立为EPCOS AG，并于2008年被日本TDK株式会社收购。如今，EPCOS作为TDK Electronics AG的产品品牌，专注于电容器、电感器和声表面波（SAW）滤波器等无源电子元件。公司提供超过40,000种产品，包括铝电解电容器、薄膜电容器、多层陶瓷电容器（MLCC）、铁氧体与电感器，以及用于频率控制和滤波的SAW组件。这些元件广泛应用于汽车电子、工业电子、信息与通信技术以及消费电子等关键领域。TDK Electronics AG以先进的陶瓷技术闻名，在小型化、可靠性和环境耐受性方面提供了高性能解决方案。公司拥有全球制造和销售网络，生产基地遍布欧洲、亚洲和美洲。作为世界最大电子元件制造商之一的TDK集团成员，EPCOS品牌受益于强大的研发资源和广泛的应用覆盖。其元件被广泛用于动力总成系统、高级驾驶辅助系统（ADAS）、可再生能源逆变器和5G基站，成为一级汽车与工业原始设备制造商的首选供应商。凭借在创新和品质方面的深厚积淀，TDK Electronics AG通过材料科学和制造精度的进步，持续塑造无源元件的未来。

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音频变压器 - 型号列表

共 17 个型号

其他名称

零件号别名

宽度

尺寸/外形

高度

长度

封装形式

供应商器件封装

标准包装数量

工厂包装数量

产品子类型

频率范围

包装方式

类型

工作温度

回波损耗（最小）

插入损耗（最大）

深度

总长度

变压器类型

触点数

制造商零件编号库存价格产品其他名称零件号别名产品类别标准包装数量工厂包装数量RoHS电感量宽度高度长度包装方式安装类型封装形式尺寸/外形端接样式供应商器件封装工作温度频率范围最大额定电流产品子类型隔离电压次级阻抗（欧姆）类型系列欧盟RoHS隔离电感量范围回波损耗（最小）插入损耗（最大）匝数比 - 初级:次级深度引脚样式总长度变压器类型触点数初级阻抗（欧姆）输出配置
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----------------
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