H0126NL

Overview

The H0126NL is a single-channel LAN 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 1.5 kV isolation voltage rating. The component operates within a frequency range of 1 MHz to 100 MHz and provides an inductance of 350 uH. It is rated for a maximum operating temperature of +70°C and a minimum of 0°C. The physical dimensions are 17.78 mm in length, 12.95 mm in width, and 9.4 mm in height, packaged in tubes.

Feature Summary

• Supports 10/100Base-T network transmission standards
• Provides 1.5 kVrms electrical isolation between circuits
• Designed for surface-mount assembly on printed circuit boards

Applications

• 10/100 Base-T Ethernet port interfaces
• Network interface card (NIC) designs
• Ethernet switch port connections

Procurement Notes

Verify the specific datasheet version and RoHS compliance status prior to ordering, as manufacturer specifications may be updated. Confirm that the SMD package dimensions align with your PCB footprint requirements. Ensure the operating temperature range meets your environmental constraints. Check for any recent product change notifications or lifecycle status updates from Pulse Electronics to confirm availability for new production runs.

Selection Notes

Select the H0126NL when designing systems requiring integrated magnetics for 10/100 Mbps Ethernet connectivity without Power over Ethernet (PoE) support. This component is suitable for space-constrained applications due to its compact SMD form factor. Consider the unshielded design implications regarding electromagnetic interference in dense layouts. Verify compatibility with standard Ethernet PHY controllers that utilize isolated transformer interfaces for signal coupling.

Part Context

The H0126NL belongs to Pulse Electronics' LAN Transformers category, specifically under Audio & Signal Transformers. It is part of a family of modules designed for data communication applications. Similar models in the lineup include the H1012NL and H0126NL variants, which share comparable functional characteristics but may differ in packaging or specific electrical tolerances. These components are essential for maintaining signal integrity and galvanic isolation in Ethernet networks.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult official distributor databases or contact Pulse Electronics directly for qualified alternatives. Cross-referencing pinouts, inductance values, and isolation ratings is critical when evaluating potential replacements to ensure system compatibility.