E81M0-002-01-FT SFP Receptacle Connector Solder Surface Mount 20 Position, Right Angle

The E81M0-002-01-FT is an industrial-standard 20-Position SFP (Small Form-factor Pluggable) Receptacle Connector. Designed to be mounted inside a corresponding metal cage assembly, this right-angle electrical interface provides the critical physical layer (PHY) connection between the host motherboard and pluggable fiber optic or copper transceivers. Conforming to SFF Committee MSA (Multi-Source Agreement) standards, it is the foundational electrical building block for enterprise routing, telecom switching, and high-speed network interface cards (NICs).

Electrically, the E81M0-002-01-FT is engineered for high-bandwidth signal integrity. It utilizes a Surface Mount Technology (SMT) footprint. Unlike through-hole (THT) connectors that introduce parasitic capacitance and signal-degrading via stubs, the SMT architecture keeps the high-speed differential pairs (TX/RX) strictly on the top layer of the PCB (or cleanly routed to internal layers via controlled microvias). This minimizes impedance mismatches and return loss. To ensure long-term electrical reliability across repeated transceiver insertion and extraction cycles, the contacts are engineered with a 15µin (0.38µm) Gold finish. This commercial-grade plating thickness provides robust resistance against fretting corrosion, oxidation, and contact wear in demanding data center environments.

Mechanically, surface-mount connectors are inherently susceptible to alignment shifting during automated manufacturing. To mitigate this Design for Manufacturing (DFM) risk, the E81M0-002-01-FT is equipped with integrated Board Guides (alignment pegs). These alignment features secure the 5.20mm low-profile housing into precisely drilled PCB holes prior to soldering, ensuring absolute pin-to-pad coplanarity during the thermal reflow process and preventing lateral drift.

Operating seamlessly in conjunction with standard SFP EMI cages, this 20-pin receptacle is the definitive surface-mount solution for high-density networking hardware, including Gigabit Ethernet switches, Fibre Channel Host Bus Adapters (HBAs), and telecom media converters.