B78476A8248A003

Overview

The B78476A8248A003 is a surface-mount magnetics module designed for LAN applications, specifically supporting 10/100 Base-T and PoE standards. It features an extended operating temperature range from -40°C to +85°C and utilizes ferrite core technology. The component provides 1.5 kV isolation voltage and is available in cut tape, MouseReel, or reel packaging formats.

Feature Summary

• Integrated magnetics solution for Ethernet connectivity
• Extended industrial temperature capability
• High voltage isolation for safety compliance

Applications

• 10/100 Base-T network interfaces
• Power over Ethernet (PoE) systems
• Local Area Network (LAN) hardware

Procurement Notes

Verify the specific package variant and termination style against project requirements. Confirm that the 1.5 kV isolation rating meets system safety standards. Ensure the -40°C to +85°C temperature range aligns with environmental conditions. Check compatibility with automated SMD assembly processes.

Selection Notes

Select this component for designs requiring integrated magnetics for 10/100 Mbps Ethernet. Consider the physical dimensions of 12.7 mm length and 6.9 mm width for PCB layout. Evaluate the need for PoE support if power delivery over the data line is required. Verify the surface mount termination matches the manufacturing equipment.

Part Context

This part belongs to the B78476A series of audio and signal transformers manufactured by EPCOS, now part of the TDK Group. The series focuses on magnetics modules for communication applications, providing compact solutions for network interface cards and embedded networking devices.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official TDK Electronics resources for cross-reference information.