S558-5999-W2-F

Pulse Transformers Overview

The S558-5999-W2-F is a LAN pulse transformer module manufactured by Bel Fuse Inc. Designed for surface mount applications, it supports 10/100 Base-T Ethernet standards with a 1CT:1CT turns ratio for both transmitter and receiver circuits. The component features an inductance of 350µH and operates within a temperature range of -40°C to +85°C. It utilizes a standard profile package suitable for telecommunications and datacom environments.

Pulse Transformers Feature Summary

• Integrated LAN magnetic module supporting 10/100 Base-T transmission and reception
• Surface mount construction with gull wing termination style
• Operates reliably in extended industrial temperature ranges

Pulse Transformers Applications

• Telecommunications equipment requiring isolated LAN connectivity
• Datacom infrastructure utilizing 10/100 Base-T interfaces
• Industrial networking hardware operating in extreme temperatures

Pulse Transformers Procurement Notes

Verify the specific suffix W2-F against official Bel Fuse documentation to confirm the exact thermal profile and RoHS compliance status. Ensure the ordering information matches the required 10/100 Base-T specification rather than Gigabit variants. Confirm package dimensions align with PCB layout requirements before finalizing procurement.

Pulse Transformers Selection Notes

Select this component when designing systems requiring integrated isolation for 10/100 Base-T networks. The wide operating temperature range makes it suitable for harsh environments. Verify that the surface mount footprint and gull wing leads fit the assembly process constraints. Compare electrical characteristics against system impedance requirements.

Pulse Transformers Part Context

This part belongs to Bel Fuse's discrete magnetics portfolio, specifically engineered for LAN applications. It integrates primary and secondary windings into a single compact module. The series provides standardized solutions for network interface cards and embedded communication devices requiring galvanic isolation.

Pulse Transformers Replacement Considerations

Consult official substitution lists for verified equivalents. Generic replacements may not match the specific 350µH inductance or 1CT:1CT configuration. Validate compatibility with existing PCB footprints and thermal management strategies before switching suppliers.