H2009NL

Overview

The H2009NL is a dual-port surface mount isolation transformer module manufactured by Pulse Electronics. Designed for 100Base-TX applications, it supports Power over Ethernet (PoE) functionality. The component features a 1:1 turns ratio and an inductance of 350 uH with a DC resistance of 0.65 Ohms. It utilizes a 24-SOIC package and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Dual-port configuration supporting 100Base-TX data transmission standards
• Integrated Power over Ethernet (PoE) capability for simultaneous power and data delivery
• Surface mount design utilizing a compact 24-SOIC package format

Applications

• 100Base-TX network interface circuits
• VoIP telephony systems
• Power over Ethernet powered devices

Procurement Notes

Verify the specific suffix designation on the ordering part number to confirm exact pinout and winding configuration. Confirm RoHS compliance status and moisture sensitivity level requirements against project specifications before procurement. Ensure the selected variant matches the required PoE and data rate specifications.

Selection Notes

Select this component for designs requiring integrated isolation and PoE support in 100 Mbps Ethernet applications. Evaluate the 24-SOIC footprint constraints against available PCB space. Consider the thermal performance characteristics relative to the expected operating environment and current load conditions.

Part Context

This component belongs to Pulse Electronics' portfolio of audio and signal transformers. It serves as a critical interface element in local area network hardware, providing galvanic isolation between the PHY transceiver and the external cable infrastructure while maintaining signal integrity.

Replacement Considerations

Consult official manufacturer substitution guides for verified alternatives. Cross-reference pin assignments and electrical parameters carefully when evaluating potential substitute components from other vendors.