H1260FNL

Overview

The H1260FNL is a single-channel LAN pulse transformer module manufactured by Pulse Electronics, designed for Surface Mount Device (SMD) integration. It supports 100Base-TX Ethernet applications without Power over Ethernet (Non-PoE). Key electrical specifications include an inductance of 350 uH and a DC resistance of 0.65 Ohms. The component operates within a frequency range of 100 kHz to 100 MHz and provides an insulation voltage of 1.5 kV. It functions reliably between -40°C and +85°C. The physical dimensions are 12.7 mm in length, 9.53 mm in width, and 6 mm in height.

Feature Summary

• Supports 100Base-TX data transmission standards
• Integrated single-port architecture for compact design
• High insulation voltage capability for safety isolation

Applications

• 100Base-TX network interface cards
• Ethernet switch port circuits
• Computer peripheral connectivity modules

Procurement Notes

Verify the specific ordering suffix to confirm package type and tape/reel configuration, as variations exist. Confirm RoHS compliance status with the manufacturer prior to finalizing procurement orders. Ensure the selected variant matches the required Non-PoE application constraints. Check current lifecycle status, as some variants may be marked as Not Recommended for New Designs. Validate thermal performance against the specified operating temperature range during system integration.

Selection Notes

Select this component for standard 10/100 Mbps Ethernet designs requiring Non-PoE isolation. Compare the 350 uH inductance value against circuit requirements for signal integrity. Consider the SMT footprint dimensions for PCB layout constraints. Evaluate the 1.5 kV insulation rating against system safety standards. Assess the unshielded construction suitability regarding electromagnetic interference in the target environment.

Part Context

This part belongs to the Pulse Electronics LAN Transformers category, specifically engineered for audio and signal transformation in networking hardware. It serves as a critical interface component for coupling Ethernet PHY chips to the physical medium. The module integrates magnetic components to facilitate differential signaling while providing galvanic isolation between the digital logic and the cable side.

Replacement Considerations

Public confirmed substitute part numbers: H1260FNLT.