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B78476A8247A003
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Product Detailed Parameters
- Description：PULSE XFMR 1CT:1CT 350UH
- Series：-
- Mfr：EPCOS - TDK Electronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Transformer Type：LAN 10/100 Base-T
- Inductance：350µH
- ET (Volt-Time)：-
- Turns Ratio - Primary:Secondary：1CT:1CT
- Mounting Type：Surface Mount
- Size / Dimension：0.500" L x 0.272" W (12.70mm x 6.90mm)
- Height - Seated (Max)：0.230" (5.85mm)
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
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Overview
The B78476A8247A003 is a magnetics module for LAN applications manufactured by EPCOS, a TDK Group Company. It operates within a frequency range of 100 kHz to 100 MHz and supports 10/100 Base-T standards. The component features a primary-to-secondary turns ratio of 1CT:1CT with an inductance of 350 uH. It has a surface mount package measuring 12.7 mm in length, 6.9 mm in width, and a maximum seated height of 5.85 mm. The insulation voltage is rated at 1.5 kV, and it functions within a temperature range of -40°C to +85°C.
Feature Summary
- Supports 10/100 Base-T Ethernet standards
- Surface mount construction for automated assembly
- Integrated magnetics module design
Applications
- 10/100 Base-T network interfaces
- LAN application magnetics modules
Procurement Notes
Verify the manufacturer designation as EPCOS, which is part of the TDK Group, when sourcing this component. Confirm the specific package dimensions and operating temperature range against the official datasheet to ensure compatibility with your PCB layout and environmental requirements. Check for any specific ordering suffixes that may indicate variations in packaging or testing standards.
Selection Notes
Select this component for designs requiring integrated magnetics for 10/100 Base-T connections. Ensure the surface mount footprint matches the specified 12.7 mm by 6.9 mm dimensions. Consider the -40°C to +85°C operating range for environmental suitability. Verify that the 1CT:1CT turns ratio and 350 uH inductance meet the signal integrity requirements of the target network interface.
Part Context
This component belongs to the B78476A series of audio and signal transformers produced by EPCOS/TDK Electronics. These modules are designed specifically for LAN applications, providing necessary magnetic isolation and signal conditioning for Ethernet connectivity. The series includes various configurations tailored to different port counts and impedance requirements.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult official TDK Electronics resources for cross-reference information.
