B78476A8245A003

Pulse Transformers Overview

The B78476A8245A003 is a single-port LAN transformer module designed for 10/100 Base-T applications. It features an inductance of 350µH and supports Power over Ethernet (PoE). The component utilizes a ferrite toroid with UL 94 V-0 case and potting materials. It operates within an extended temperature range of -40°C to +85°C, ensuring reliability in commercial environments.

Pulse Transformers Feature Summary

• Single-port magnetic module for 10/100 Base-T LAN connectivity
• Supports Power over Ethernet (PoE) functionality
• Ferrite toroid construction with UL 94 V-0 rated case and potting

Pulse Transformers Applications

• 10/100 Base-T network interface cards
• Commercial LAN equipment requiring PoE support
• Ethernet physical layer (PHY) circuitry integration

Pulse Transformers Procurement Notes

Verify the specific ordering suffix matches the required configuration. Confirm that the ferrite toroid package type aligns with the target PCB layout. Ensure the operating temperature range meets the environmental specifications of the end application. Cross-reference the datasheet for pinout compatibility before integration.

Pulse Transformers Selection Notes

Select this component for single-port Ethernet designs requiring integrated magnetics. The 350µH inductance value suits standard 10/100 Base-T signaling requirements. Consider the extended temperature range for robustness in varying commercial conditions. Verify PoE power handling capabilities against system design needs.

Pulse Transformers Part Context

This part belongs to the B78476A series of magnetics modules from EPCOS, now part of TDK Electronics. These components are specifically engineered for LAN applications, providing necessary isolation and signal integrity for Ethernet connections. The series offers various configurations tailored to different port counts and protocol standards.

Pulse Transformers Replacement Considerations

Check for direct substitutes within the B78476A family. Verify pinout and electrical parameters against alternative LAN transformers. Ensure any replacement maintains the same PoE support and temperature rating.