HM0068BNLT

Overview

The HM0068BNLT is a single-channel LAN transformer module manufactured by Pulse Electronics, designed for Surface Mount Device (SMD) applications. It supports 100Base-TX Ethernet standards and is specified as Non-PoE. The component features an inductance of 350 µH and a DC resistance of 0.65 ohms. It operates within a frequency range of 100 kHz to 200 MHz and withstands an insulation voltage of 1.5 kV. The physical dimensions are 0.5 inches in length, 0.347 inches in width, and 0.082 inches in height. The unit is rated for operating temperatures between -40°C and +105°C.

Feature Summary

• Integrated magnetic module providing galvanic isolation for Ethernet signal transmission
• Optimized for 100Base-TX network interface controller connectivity
• Surface mount construction suitable for automated PCB assembly processes

Applications

• 100Base-TX Ethernet port implementation
• Network interface card (NIC) design
• Industrial communication equipment requiring isolated signal paths

Procurement Notes

Verify the specific suffix 'BNLT' against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Ensure the selected variant matches the required Non-PoE configuration and impedance characteristics for the target 100Base-TX circuit design. Cross-reference RoHS compliance status with the latest environmental declarations provided by Pulse Electronics prior to final procurement authorization.

Selection Notes

Select this component when designing for 100Base-TX applications requiring a compact, single-port solution. The 350 µH inductance value must align with the common mode choke requirements of the specific PHY transceiver being utilized. Verify that the 0.65 ohm DC resistance fits within the power budget and thermal constraints of the end application. Confirm that the SMD footprint matches the PCB layout guidelines provided in the official mechanical drawing.

Part Context

This part belongs to the HM series of LAN transformers from Pulse Electronics, which are engineered for high-reliability networking applications. The HM series typically offers integrated magnetics to reduce board space and simplify assembly. The HM0068BNLT specifically targets Fast Ethernet (100 Mbps) segments, distinguishing it from Gigabit variants like the HX or H6062 series which support higher data rates and different pin configurations.

Replacement Considerations

Public confirmed substitute part numbers: HM0068ANL, HM0068NL.