H1012T

Overview

The H1012T is a LAN pulse transformer module manufactured by Pulse Electronics, designed for single-port 10/100 Base-T applications. It features a 1CT:1CT turns ratio for both transmit and receive paths. The component utilizes surface mount technology with dimensions of 1.000 inches in length, 0.390 inches in width, and a maximum height of 0.245 inches. It operates within a temperature range of 0°C to 70°C and weighs approximately 0.11 ounces.

Feature Summary

• Supports 10/100 Base-T Ethernet standards
• Integrated single-port LAN transformer module
• Compatible with major transceiver manufacturers

Applications

• 10/100 Base-T network interface cards
• Ethernet switch ports
• Network adapter modules

Procurement Notes

Verify the specific suffix designation when ordering, as variants such as H1012NL or H1012NLT may exist with different packaging configurations. Confirm RoHS compliance status and moisture sensitivity level requirements prior to integration into the assembly process to ensure supply chain alignment.

Selection Notes

Select this component for designs requiring a compact, single-port solution for 10/100 Mbps Ethernet connectivity. Ensure the PCB layout accommodates the specified SMD footprint and that the operating environment remains within the stated thermal limits. Verify compatibility with the chosen PHY transceiver from Broadcom, Intel, Micrel, National Semiconductor, ICS, or TDK.

Part Context

This part belongs to the family of LAN pulse transformers intended for data communication interfaces. It serves as an isolation and signal conditioning component between the MAC layer and the physical medium. The module integrates primary and secondary windings to facilitate differential signaling over twisted-pair cabling.

Replacement Considerations

Publicly confirmed substitute part numbers include H1012NL and H1012NLT. These variants share identical electrical characteristics but differ in packaging format, such as bulk versus tape and reel.