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The iNRCORE 1000B-5003FXT is a surface-mount LAN pulse transformer designed for 10/100/1000 Base-T applications. It features a 1:1 turns ratio and an inductance of 350 µH. The component provides 1500 Vrms isolation voltage and supports two channels. Operating temperatures range from -55°C to +125°C. Dimensions are 27.94 mm length, 10.54 mm width, and 8.64 mm height. It is supplied in tape and reel packaging.
Verify the specific suffix 'FXT' corresponds to the Tape and Reel packaging configuration. Confirm that the -55°C to +125°C temperature rating meets your environmental requirements. Ensure the SMD termination style matches your PCB footprint design. Check RoHS compliance status as indicated in official documentation.
Select this component when Gigabit Ethernet signal integrity is required with extended temperature capabilities. The dual-channel design suits full-duplex applications. Verify that the 350 µH inductance aligns with your transformer specifications. Consider the physical dimensions for board space constraints.
This part belongs to the iNRCORE LAN transformer series. It serves as a critical interface component in Ethernet PHY circuits. The model number indicates specific electrical and mechanical characteristics within the manufacturer's portfolio.
Publicly confirmed parameter-equivalent substitutes include 1000B-5003FXNL and 1000B-5003FXNLT. These alternatives share similar electrical specifications but may differ in packaging or lead time availability.