S558-5999-46-F

Pulse Transformers Overview

The S558-5999-46-F is a LAN pulse transformer module manufactured by Bel Fuse Inc., designed for 10/100 Base-T Ethernet applications. It features an inductance of 420µH and a turns ratio of 1CT:1CT for both transmitter and receiver circuits. The component utilizes a surface mount package with dimensions of 1.000" L x 0.390" W x 0.235" H (25.40mm x 9.91mm x 5.97mm). It operates within a temperature range of 0°C to 70°C and complies with IEEE 802.3 standards.

Pulse Transformers Feature Summary

• Supports 10/100 Base-T LAN magnetic signal transmission
• Integrated single-port transformer module design
• Surface mount construction for automated assembly

Pulse Transformers Applications

• Ethernet network interface cards
• LAN hub and switch ports
• Industrial communication equipment

Pulse Transformers Procurement Notes

Verify the specific suffix '46' against official Bel Fuse documentation to confirm compatibility with target circuit requirements. Ensure that the surface mount footprint matches the PCB layout specifications. Confirm that the operating temperature range meets the environmental conditions of the final application before procurement.

Pulse Transformers Selection Notes

Select this component for designs requiring integrated 10/100 Base-T magnetics with a 420µH inductance value. Consider the physical dimensions and surface mount profile when determining board space allocation. Verify that the 1CT:1CT configuration aligns with the PHY transceiver interface requirements of the system architecture.

Pulse Transformers Part Context

This part belongs to the Bel Fuse LAN discrete transformer modules series, specifically engineered for Ethernet connectivity. It serves as a critical passive component for signal isolation and impedance matching in local area network hardware. The module integrates primary and secondary windings into a single compact unit.

Pulse Transformers Replacement Considerations

Consult official substitution lists for compatible LAN transformer modules from Bel Fuse or other authorized manufacturers. Verify electrical equivalence regarding inductance, turns ratio, and form factor before implementing any alternative components.