HX5149NL

Overview

The HX5149NL is a single-port surface mount magnetics module designed for 1000Base-T Ethernet applications. It operates without Power over Ethernet (PoE) support. The component features a 1:1 transformer configuration with specific inductance values of 300 µH and 360 µH. It supports frequency ranges from 1 MHz to 125 MHz and provides an isolation voltage of 1.5 kV. The unit is rated for operation between -40°C and +85°C, ensuring reliability in standard industrial environments.

Feature Summary

• Supports 1000Base-T Gigabit Ethernet data transmission standards
• Surface mount design optimized for automated PCB assembly processes
• Provides electrical isolation with specified high-voltage withstand capability

Applications

• Gigabit Ethernet network interface cards
• Industrial communication equipment requiring non-PoE connectivity
• Embedded systems with integrated LAN transceivers

Procurement Notes

Verify the exact datasheet revision when sourcing, as specifications may vary slightly between manufacturing years. Confirm that the application does not require Power over Ethernet functionality, as this model is explicitly non-PoE. Ensure the PCB footprint matches the SMD package dimensions provided in the official mechanical drawings to prevent assembly errors.

Selection Notes

Select this component for designs strictly adhering to IEEE 802.3ab standards without power delivery requirements. Consider the operating temperature range if the environment exceeds standard commercial limits. Verify impedance matching requirements against the connected PHY chip to ensure signal integrity at gigabit speeds.

Part Context

This part belongs to Pulse Electronics' portfolio of LAN transformers and magnetics modules. These components are essential for isolating the Ethernet PHY from the physical cable infrastructure. The series typically includes variants supporting different speeds and PoE configurations, serving as critical interface elements in modern networking hardware.

Replacement Considerations

Consult official cross-reference lists for direct replacements. Generic substitutes must match the 1000Base-T specification, inductance values, and isolation ratings. Verify pin compatibility and mechanical footprint before integrating alternative parts into existing designs.