H0126NLT

Overview

The H0126NLT is a single-port LAN pulse transformer module manufactured by Pulse Electronics, designed for surface-mount technology (SMD) applications. It supports 10/100Base-T Ethernet standards and features an unshielded construction with a 1:1 turns ratio. The component operates within a frequency range of 1 MHz to 100 MHz and provides an insulation voltage of 1.5 kV. Key electrical parameters include an inductance of 350 uH and a DC resistance of 0.65 Ohms. The device functions reliably across a temperature range of 0°C to +70°C and has a maximum height of 9.4 mm.

Feature Summary

• Supports 10/100Base-T network protocols
• Provides galvanic isolation via integrated transformer
• Surface-mount design for automated assembly

Applications

• Ethernet port interface circuits
• Network interface card (NIC) designs
• Industrial communication modules

Procurement Notes

Verify the specific suffix and package variant against the official datasheet to ensure compatibility with your PCB footprint and reflow profile requirements. Confirm moisture sensitivity level handling procedures prior to assembly. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and current production status before finalizing procurement orders.

Selection Notes

Select this component when designing for standard 10/100 Mbps Ethernet connectivity requiring a compact, single-port solution. Consider the operating temperature range and physical dimensions relative to your enclosure constraints. Ensure the unshielded configuration meets your electromagnetic interference requirements or supplement with external shielding if necessary for your specific application environment.

Part Context

This part belongs to Pulse Electronics' LAN transformer portfolio, specifically tailored for data interface isolation. It serves as a critical passive component in Ethernet PHY transceivers, providing signal coupling and impedance matching. The module integrates primary and secondary windings into a single SMD package to save board space compared to discrete transformer solutions.

Replacement Considerations

Consult official substitution guides for compatible alternatives such as the HX1260NLT or H1012NLT. Verify that any substitute part matches the required inductance, insulation voltage, and physical footprint specifications before implementation.