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Small metallic SFP transceiver with RJ-45 port and latch

Finisar Corporation

Finisar Corporation FCLF8522P2BTL 1000BASE-T SFP transceiver

SKU CH-XE41-H6PJX MPN FCLF8522P2BTL

A hot-pluggable SFP transceiver with an RJ-45 port for 1.25 Gbps copper links up to 100 m, rated for -40 °C to +85 °C operation

  • Port countRJ-45
  • Product typeTransceiver
  • Maximum range100 m
  • Transfer speed1.25 Gbit/s
  • Gigabit copper links up to 100 m over Cat5e
  • Hot-pluggable SFP form factor enables live module swaps
  • Extended operating range from -40 °C to +85 °C
  • Metallic enclosure reduces electromagnetic interference
  • Low 1.05 W typical power draw cuts heat load

1000BASE-T Copper SFP Transceiver

The Finisar FCLF8522P2BTL is a hot-pluggable SFP transceiver designed for Gigabit Ethernet links over copper cabling. It suits network engineers and system integrators deploying 1000BASE-T connections in switches, routers or media converters.

100 m Reach Over RJ-45

The module delivers a 1.25 Gbps bi-directional data rate with a maximum link distance of 100 metres over standard twisted-pair cable. Its RJ-45 connector assembly fits the SFP MSA footprint while the extended case temperature range of -40°C to +85°C supports industrial environments.

Upgrades Fibre SFP Ports to Copper

This transceiver replaces a fibre SFP when the link must run over existing copper infrastructure. The jump is worth it when the deployment requires a fully metallic enclosure for low EMI, 1.05 W typical power dissipation and I2C access to the physical layer IC for diagnostics.

How it compares

Measured against everything we stock in SFP & SFP+ Transceiver Modules, at today’s prices. Recalculated every night.

Price $48.99
Cheaper than about 74% of the 1,471 comparable items (median $138.99).

Specifications

Product
Brand nameFinisar Corporation
Model nameFCLF8522P2BTL
Product typeTransceiver
Performance
Transfer speed1.25 Gbit/s
Connectivity
Maximum range100 m
Ports & slots
Port countRJ-45
Size & build
Shipping weight0.07 kg
Package size97 × 69 × 18 mm

Questions about this item

Which of the Finisar 1000BASE-T Copper SFP models — FCLF8520P2BTL, FCLF8521P2BTL or FCLF8522P2BTL — should I choose?

The three models share the same SFP footprint, 1.25 Gbps rate, 100 m reach, extended temperature range and RoHS compliance. Select the exact part number your switch or router vendor lists as qualified.

What does the 1.25 Gbps transfer rate mean once the transceiver is installed in a switch?

It delivers a full-duplex Gigabit Ethernet link over Cat5e or better copper cable up to 100 metres, with the PHY accessible via the 2-wire serial bus for diagnostics.

The module uses an SFP interface — what does that cap in practice?

The SFP MSA footprint limits the module to 1.25 Gbps Ethernet over RJ-45 copper, hot-pluggable operation, and a maximum power draw of 1.05 W typical.

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