HX1148T

Overview

The HX1148T is a LAN discrete transformer module manufactured by Pulse Electronics, designed for Surface Mount Device (SMD) applications. It supports 100Base-TX Ethernet standards and provides electrical circuit isolation compliant with IEEE 802.3 requirements. The component operates within a frequency range of 100 kHz to 100 MHz, featuring an inductance of 350 µH and an insulation voltage rating of 1.5 kV. It has a single channel configuration and unshielded construction. Physical dimensions are 25.4 mm in length, 12.83 mm in width, and 6.22 mm in height. The operating temperature range spans from -40°C to +85°C.

Feature Summary

• Provides electrical circuit isolation meeting IEEE 802.3 standards while maintaining signal integrity for demanding applications.
• Optimized for major LAN transceivers with a peak reflow temperature rating of +245°C.
• Supports 100Base-TX non-PoE applications with SMD termination style.

Applications

• 100Base-TX Ethernet network interfaces
• LAN discrete transformer modules for transceivers
• Signal transformers requiring IEEE 802.3 compliance

Procurement Notes

Verify RoHS compliance status carefully, as some sources indicate the HX1148T may be non-compliant or have specific REACH-SVHC details that require confirmation against current regulatory lists. Confirm whether the specific order suffix corresponds to RoHS3 compliance if required by project specifications. Ensure the supplier documentation explicitly states the version of the datasheet being referenced to avoid discrepancies regarding environmental certifications.

Selection Notes

Select this component when designing for 100Base-TX environments requiring surface mount integration. Consider the physical footprint of 25.4 x 12.83 mm and the 6.22 mm seated height for PCB layout constraints. Verify thermal management capabilities given the -40°C to +85°C operating range and the +245°C peak reflow rating. Ensure the application does not require Power over Ethernet (PoE) support, as this model is specified as Non-PoE.

Part Context

The HX1148T belongs to the HX series of LAN discrete transformer modules from Pulse Electronics. This series is engineered to provide robust isolation and signal integrity for various LAN transceivers. The module type indicates it integrates multiple transformer windings into a single package, simplifying assembly compared to discrete components. It falls under the broader category of Audio & Signal Transformers, specifically tailored for networking applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official distributor cross-reference tools or manufacturer engineering change notices for potential alternatives. Verify pinout compatibility and electrical parameter equivalence before considering any generic replacements.