H1141NL

Overview

The H1141NL is a Pulse Electronics transformer module designed for 10/100Base-TX applications. It functions as an isolation and data interface component, specifically configured for MDI/MDIX operations. The device utilizes a surface mount mounting type and features an encapsulated construction to ensure environmental protection and mechanical stability. Its physical dimensions are specified as 12.57mm in length by 12.07mm in width, with a weight of approximately 1.14g. This component serves as a critical interface element in Ethernet network hardware, providing the necessary galvanic isolation between the media access controller and the physical layer transceiver.

Feature Summary

• Provides electrical isolation and signal coupling for Ethernet data interfaces
• Supports both MDI and MDIX port configurations for flexible network connectivity
• Encapsulated design ensures durability and protection against environmental factors

Applications

• 10/100Base-TX Ethernet network interface cards
• Ethernet switch ports requiring MDI/MDIX auto-crossover functionality
• Network hub internal circuitry

Procurement Notes

Verify that the specific revision of the H1141NL matches the required PCB footprint and pinout configuration for your design. Confirm compliance with relevant electromagnetic compatibility standards if applicable to your end product. Ensure storage conditions align with manufacturer recommendations to maintain component integrity prior to assembly.

Selection Notes

Select this component when designing systems requiring integrated isolation transformers for Fast Ethernet connections. The encapsulated form factor simplifies assembly processes compared to discrete transformer solutions. Consider the physical size constraints of the target application to ensure the 12.57mm x 12.07mm package fits within the available board space without interfering with adjacent components.

Part Context

This part belongs to the family of Pulse Electronics network transformers intended for copper-based Ethernet communications. It replaces older discrete transformer designs by integrating multiple windings and shielding into a single compact module. The H1141NL is distinct from common mode chokes or power inductors due to its specific role in differential signal transmission and impedance matching for twisted pair cabling.

Replacement Considerations

Consult official substitution lists for direct replacements. Generic equivalents may not match the precise winding ratios or isolation voltage ratings required for certified network equipment.