H1259NL

Overview

The H1259NL is a surface mount LAN transformer module manufactured by Pulse Electronics, designed for 100BaseTX applications. It features a dual-channel configuration with an inductance of 350 uH and a DC resistance of 0.65 Ohms. The component supports non-PoE signaling and operates within a frequency range of 1 MHz to 100 MHz. It utilizes SMD/SMT termination types and is packaged in reels or cut tape formats.

Feature Summary

• Supports 100BaseTX Ethernet signaling standards
• Dual-channel architecture for signal integrity
• Surface mount design for automated assembly

Applications

• 100BaseTX network interface circuits
• Ethernet PHY integration modules
• Non-PoE data communication systems

Procurement Notes

Verify the specific packaging variant (Reel or Cut Tape) required for your production line before ordering. Confirm that the application strictly adheres to non-PoE specifications, as this model does not support Power over Ethernet. Ensure compatibility with 100BaseTX signaling requirements rather than higher-speed Gigabit standards.

Selection Notes

Select the H1259NL when designing for 100 Mbps Ethernet connections requiring surface mount integration. This component is suitable for non-PoE environments where 350 uH inductance and 0.65 Ohms resistance are appropriate for the signal path. Consider the dual-channel layout for balanced transmission needs.

Part Context

This component belongs to Pulse Electronics' LAN Transformers product line, specifically categorized under Audio & Signal Transformers. It serves as a critical isolation and impedance matching element in Ethernet physical layer designs, ensuring compliant signal transmission for industrial and commercial networking equipment.

Replacement Considerations

The H1258NL is a documented substitute part number for this component. Verify pinout and electrical parameter equivalence before substitution.