HX1148NLT

Overview

The HX1148NLT is a single-port LAN pulse transformer module manufactured by Pulse Electronics, designed for surface-mount assembly. It supports 100BaseTX applications with a frequency range of 1 MHz to 100 MHz and an inductance of 350 uH. The component provides 1.5 kV isolation voltage and operates within a temperature range of -40°C to +85°C. Physical dimensions are 25.4 mm in length, 9.91 mm in width, and 6.22 mm in height. It features a 1CT:1 turns ratio for both transmitter and receiver paths.

Feature Summary

• Provides electrical circuit isolation compliant with IEEE 802.3 standards for signal integrity
• Optimized for compatibility with major LAN transceivers from Broadcom, Intel, Micrel, National Semiconductor, ICS, and TDK
• Features a peak reflow temperature rating of 245°C suitable for standard SMD processes

Applications

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

Procurement Notes

Verify the specific suffix 'NLT' to confirm tape-and-reel packaging versus the 'NL' tube variant. Ensure the selected component matches the required moisture sensitivity level (MSL 3) and RoHS compliance status for your manufacturing process. Cross-reference the manufacturer part number against official distributor catalogs to avoid confusion with similar series components.

Selection Notes

Select this module when a single-port solution for 100BaseTX is required without Power over Ethernet capabilities. Consider the physical footprint of 25.4 x 9.91 mm for PCB layout constraints. Verify that the 1.5 kV isolation voltage meets the safety requirements of the target application environment compared to lower-rated alternatives.

Part Context

This component belongs to the HX series of LAN discrete transformer modules from Pulse Electronics. These modules are engineered to maintain signal integrity while providing necessary galvanic isolation for Ethernet networks. The series is widely used in networking equipment requiring reliable data transmission interfaces.

Replacement Considerations

TM5272-23ANL by Taoglas Limited is listed as a similar substitute part.