H1631CG

Overview

The H1631CG is a single-port LAN pulse transformer manufactured by Mentech Technology USA Inc., designed for 10/100 BASE-T Ethernet applications. It features a surface-mount package with dimensions of 13.2mm length and 7.6mm width, weighing 0.28g. The component provides an isolation voltage of 1.5kV and utilizes a 1CT:1CT transformer configuration. It includes internal common mode chokes and is compliant with the ROHS directive.

Feature Summary

• Engineered specifically for 10/100 BASE-T Ethernet signal transmission
• Provides high-voltage electrical isolation between circuit ports
• Integrates common mode filtering within the transformer structure
• Designed for reliable surface-mount assembly on PCBs

Applications

• Ethernet network interface cards (NICs)
• RJ45 connector modules for data communication
• Industrial Ethernet equipment requiring galvanic isolation

Procurement Notes

Verify the manufacturer designation as Mentech Technology USA Inc. or Dongguan Mentech Optical & Magnetic to ensure authenticity. Confirm the package dimensions match the 13.2x7.6mm specification. Check for ROHS compliance documentation if required by project standards. Ensure the part number suffix matches the specific variant needed for your design.

Selection Notes

Select this component when a single-port solution for 10/100 Mbps networks is required. The integrated common mode choke simplifies the schematic by reducing external component count. The surface-mount form factor suits automated assembly processes. Verify that the 1.5kV isolation rating meets the safety requirements of the target application environment.

Part Context

This component belongs to the LAN transformer family used in Ethernet physical layer circuits. It serves as a critical interface between the MAC controller and the physical medium via the RJ45 jack. The design supports standard twisted-pair cabling protocols. It replaces discrete transformer and filter combinations in compact designs.

Replacement Considerations

The YKT-221631NL is identified as a cross-reference part for the H1631CG. Verify pinout compatibility and electrical specifications before substitution. Ensure the replacement maintains the same isolation voltage and impedance characteristics.