H5009FNLT

Overview

The H5009FNLT is a surface-mount LAN pulse transformer manufactured by Pulse Electronics, designed for 10/100/1000 Base-T applications. It features a single-port configuration with a 1:1 turns ratio for both transmitter and receiver circuits. The component has an inductance of 350µH and a DC resistance of 0.65 Ohms. It operates within a temperature range of 0°C to 70°C and measures 13.67mm x 18.44mm with a maximum seated height of 5.87mm. The device supports high potential isolation of 1500Vrms and is RoHS3 compliant.

Feature Summary

• Supports Gigabit Ethernet data transmission over twisted pair lines
• Provides galvanic isolation between PHY and transformer primary side
• Optimized for non-PoE network interface card implementations

Applications

• Gigabit Ethernet network interface cards
• Computer motherboards with integrated LAN ports
• Network switches and routers
• Industrial communication equipment

Procurement Notes

Verify the specific package variant and lead time requirements before ordering, as availability may fluctuate. Confirm that the 0.65 Ohm DC resistance specification aligns with your circuit design constraints. Ensure the 1500Vrms isolation rating meets safety standards for your target application environment. Check for any recent product change notifications regarding pinout or mechanical dimensions.

Selection Notes

Select this component when a single-port, non-PoE solution is required for Gigabit Ethernet connectivity. The 350µH inductance value is suitable for standard LAN signal integrity requirements. Consider the surface-mount footprint and height constraints during PCB layout. Compare against other Pulse LAN transformers if PoE functionality or different isolation ratings are needed.

Part Context

This part belongs to Pulse Electronics' LAN transformer portfolio, specifically targeting 10/100/1000 Base-T standards. It serves as a critical interface component between the Ethernet controller and the physical medium. The series includes various configurations for different port counts and PoE capabilities, with this model focusing on basic data transmission without power delivery.

Replacement Considerations

Consult official distributor databases for parameter-equivalent alternatives such as H5014FNL or H6080FNL. Verify mechanical compatibility and electrical specifications before substitution. Ensure any replacement part maintains the same isolation voltage and inductance characteristics.