H1012NL

Overview

The H1012NL is a single-port LAN transformer module manufactured by Pulse Electronics, designed for 10/100Base-T applications. It features surface-mount (SMD) termination and operates within a frequency range of 1 MHz to 100 MHz. Key electrical specifications include an inductance of 350 uH and an insulation voltage of 1.5 kV. The component supports a 1CT:1CT turns ratio and functions at temperatures between 0°C and +70°C. Its physical dimensions are 17.78 mm in length, 12.95 mm in width, and 9.4 mm in height.

Feature Summary

• Supports 10/100Base-T Ethernet standards with integrated signal transformation
• Provides 1.5 kV isolation voltage for circuit protection
• Compatible with major transceiver manufacturers including Broadcom, Intel, Micrel, National Semiconductor, ICS, and TDK

Applications

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

Procurement Notes

Verify the specific suffix designation when ordering, as packaging variations such as tube or tape-and-reel may exist within the product family. Confirm RoHS compliance status through official datasheets prior to integration. Ensure the selected variant matches the required channel count and mounting style for the target PCB layout.

Selection Notes

Select this component for designs requiring a single-port solution for 10/100 Mbps Ethernet connections. The unshielded configuration suits applications where external shielding is managed separately. Verify that the operating temperature range of 0°C to +70°C aligns with the environmental constraints of the final assembly.

Part Context

This part belongs to Pulse Electronics' LAN transformer module series, specifically engineered for telecommunications and data interface applications. It serves as a critical isolation and impedance matching component in Ethernet PHY circuits, ensuring signal integrity across twisted-pair cabling systems.

Replacement Considerations

Consult official substitution lists for compatible alternatives. Potential equivalents within the same family include H1019NL, H1042NL, H1086NL, H1089NL, and H1138NL, subject to specific pinout and electrical parameter verification.