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Finisar FCLF8522P2BTL 1000BASE-T 100m Gen2 RJ-45 Copper SFP Optical Transceiver

Brand: Finisar
Part Number: FCLF8522P2BTL
UPC: 660165178176
Condition: Factory New Sealed
Availability: In Stock
Shipping: Fast Shipping Across Australia
Delivery: Typically within 2 Business Days
Warranty: 3 Years

A$ 71.50

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4 reviews Write a review

FCLF8522P2BTL 1000BASE-T Copper Small Form Pluggable (SFP) transceivers are based on the SFP Multi Source Agreement (MSA). They are compatible with the Gigabit Ethernet and 1000BASE-T standards as specified in IEEE Std 802.3. The optical transceiver is RoHS compliant as described in Application Note AN-2038. The 1000BASE-T physical layer IC (PHY) can be accessed via I2C, allowing access to all PHY settings and features.

Features

Up to 1.25Gb/s bi-directional data links
Hot-pluggable SFP footprint
Fully metallic enclosure for low EMI
RoHS compliant
Low power dissipation (1.05 W typical)
Compact RJ-45 connector assembly
Access to physical layer IC via 2-wire serial bus
10/100/1000 BASE-T operation in host systems with SGMII interface
Extended case temperature range: -40°C to 85°C

Applications

1.25 Gigabit Ethernet over Cat 5 cable

Specifications

Distance: 100 m
Data Rate (max): 1.25 Gb/s
Protocol: 1000Base-T Compliant
Low End Case Temperature (°C): -40
High End Case Temperature (°C): 85
Diagnostics: N/A
Transmitter: N/A
Receiver: N/A
Voltage Supply: 3.3
Connector: RJ-45

FCLF8522P2BTL

This FCLF8522P2BTL is 100% genuine Finisar product. It won't have any compatibility problem with your Finisar devices. And the Finisar FCLF8522P2BTL 1000BASE-T 100m Gen2 RJ-45 Copper SFP Optical Transceiver is factory new with original packaging. Buy it now and enjoy risk free purchase with fast worldwide delivery from GenuineModules.com

Scott Roberts	29/04/2026 AEST
Solid copper SFP. Plug and play, auto-negotiation worked perfectly, and it runs cool even under load. Full 100m on Cat6 with zero drops. Finisar quality as always. 5

Justin Perez	13/04/2026 AEST
Sometimes you just need a copper port where there isn't one. These Finisar 1000BASE-T SFPs are perfect for that. Gen2 runs cooler than the old ones. Plug and play, no issues. 5

Robert Williams	09/04/2026 AEST
Sometimes you just need a copper port where there isn't one. These Finisar 1000BASE-T SFPs are perfect for that. Gen2 runs cooler than the old ones. Plug and play, no issues. 5

Karen	04/09/2025 AEST
The module installed easily and has been running without issues. Network speed is stable and no compatibility problems so far. A solid option if you need a copper SFP. 5

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Will the Finisar FCLF8522P2BTL work in my switch or router SFP port?

Yes. The Finisar FCLF8522P2BTL is a 1000BASE-T RJ-45 copper SFP designed for host systems with an SGMII interface and follows the SFP MSA. It supports 10/100/1000 Ethernet over Cat5 or better cable up to 100 meters.

How do I install this 1000BASE-T copper SFP transceiver?

Installation is simple: insert the hot-pluggable SFP into a compatible SFP slot, then connect a standard RJ-45 Ethernet cable. No fiber patch cable is needed. For best results, confirm your device supports copper 1000BASE-T SFP modules and SGMII operation.

What is the build quality and operating environment of this Finisar copper SFP?

This module uses a fully metallic enclosure for low EMI, a compact integrated RJ-45 connector, and a RoHS-compliant design. It is built for reliable Gigabit Ethernet performance with low typical power consumption of 1.05W and an extended operating case temperature range of -40°C to 85°C.

What should I do if this RJ-45 SFP is not linking at 1Gb or not being detected?

If the link does not come up, check that your host device supports 1000BASE-T copper SFP modules, verify the port is configured correctly, and test with Cat5e or better cabling under 100 meters. You can also access PHY settings through the 2-wire I2C interface for deeper troubleshooting.

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FCLF8522P2BTL Datasheet

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