H1140NL

Overview

The H1140NL is a LAN transformer module manufactured by Pulse Electronics, designed for Ethernet applications. It features a surface mount (SMD/SMT) termination type and operates within a frequency range of 1 MHz to 100 MHz. The component has an inductance of 350 uH and provides an insulation voltage of 1.5 kV. It is configured as a single-channel device with dimensions of 17.53 mm in length, 12.2 mm in width, and 5.51 mm in height. The unit weight is 2.700 g, and it belongs to the H1140 series.

Feature Summary

• Surface mount construction for automated PCB assembly
• Single-channel isolation for Ethernet signal integrity
• High insulation voltage capability for safety compliance

Applications

• Ethernet LAN network interfaces
• Computer networking hardware
• Telecommunications equipment

Procurement Notes

Verify RoHS and REACH-SVHC compliance status through official datasheets before integration. Confirm moisture sensitivity level (MSL) handling requirements during storage and reflow soldering processes. Ensure the specific package variant matches the design footprint. Check for any recent product change notices that might affect mechanical or electrical specifications.

Selection Notes

Select this component for designs requiring a single-port Ethernet solution with standard isolation requirements. Consider the physical dimensions and SMT profile for board space constraints. Evaluate thermal performance within the specified operating temperature range. Compare against alternative LAN transformers if higher channel counts or different form factors are needed.

Part Context

This part belongs to Pulse Electronics' portfolio of audio and signal transformers, specifically categorized under LAN transformers. It serves as a critical passive component in network interface cards and switches, facilitating galvanic isolation between the PHY chip and the external network medium while maintaining signal fidelity.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer catalogs for cross-reference options based on specific electrical and mechanical requirements.