HX1148NL

Overview

The HX1148NL is a single-port LAN transformer module designed for 100BaseTX applications. It features surface mount (SMD) termination and operates within a frequency range of 1 MHz to 100 MHz. The component provides electrical isolation with an insulation voltage of 1.5 kV and maintains a primary inductance of 350 uH. Physical dimensions are 25.4 mm in length, 9.91 mm in width, and 6.22 mm in height. It supports a temperature range from -40°C to +85°C and utilizes a tube packaging format.

Feature Summary

• Provides electrical circuit isolation compliant with IEEE 802.3 standards for signal integrity
• Optimized for use with major LAN transceivers in demanding network environments
• Features unshielded construction suitable for specific layout requirements

Applications

• 100BaseTX network interface circuits
• Single-port Ethernet connectivity modules
• LAN transceiver isolation interfaces

Procurement Notes

Verify the specific ordering suffix and package type during procurement, as the HX1148NL designation typically corresponds to tube packaging, whereas variants like HX1148NLT utilize tape and reel formats. Confirm that the required application does not necessitate Power over Ethernet (PoE) capabilities, as this model is specified for non-PoE implementations. Ensure compatibility with the target PCB footprint dimensions of 25.4 mm by 9.91 mm before finalizing orders.

Selection Notes

Select the HX1148NL when designing 100BaseTX systems requiring single-channel isolation without PoE support. This component is appropriate for applications needing a 1:1 turns ratio for both transmitter and receiver paths. Consider the unshielded design if electromagnetic interference mitigation is handled elsewhere in the system architecture. Verify that the operating temperature range of -40°C to +85°C aligns with the environmental constraints of the end device.

Part Context

The HX1148NL belongs to the HX series of LAN discrete transformer modules manufactured by Pulse Electronics. These modules are engineered to provide robust isolation between the PHY chip and the external network medium. The series is characterized by its optimization for various LAN transceivers while maintaining signal integrity across standard Ethernet frequencies. This specific part represents a non-PoE solution for single-port deployments.

Replacement Considerations

Public documentation identifies TM5272-23ANL by Taoglas Limited as a similar substitute option. Verify mechanical footprint compatibility and electrical parameter alignment before substitution.