Finisar FTLX1871 Series Compatible 10GBASE-ZR 80km SFP+

Finisar
SFP+
10G
Duplex
80 km
Finisar FTLX1871y3BxL Compatible 10G 80KM SMF SFP+ module

Finisar compatible FTLX1871y3BxL - Key Features

  • Compatibility: Finisar
  • Media Type: Single-Mode Fiber (SMF)
  • Fiber Count: Duplex
  • Connector: Double LC/UPC
  • Maximum Distance: 80 km
  • Average Link Budget: 23 dB
  • Tx Wavelength: 1550 nm
  • Supported Data Rate: 1.25 Gbps - 11.32 Gbps
  • DDM/DOM: Supported
  • Temperature Range: Standard 0°-70°C

Finisar FTLX1871y3BxL Price

Lead timeIn Stock - Ships Next Business Day
Standard recommended retail price ex VAT:
88.36
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Telecoms & Integrators Globally

Finisar compatible FTLX1871y3BxL Specifications

Form Factor
SFP+
Media Type
Single-Mode Fiber (SMF)
Fiber Count
Duplex
Connector
Double LC/UPC
Maximum Distance
80 km
Average Link Budget
23 dB
TX Wavelength
1550 nm
RX Wavelength
1550 nm
Supported Data Rate
1.25 Gbps - 11.32 Gbps
Supported Ethernet Applications
10G Ethernet (10.31Gbps), Gigabit Ethernet (1.25 Gbps)
Supported Fiber Channel Applications
10G Fiber Channel (10.52 Gbps), 1G Fiber Channel (1.0625 Gbps), 2G Fiber Channel (2.125 Gbps), 4G Fiber Channel (4.25 Gbps), 8G Fiber Channel (8.5 Gbps)
SDH/SONET Standards
STM-64 (9.95Gbps)
DDM/DOM
Supported
Tx Wavelength Bandwidth
37 nm (1528-1565 nm)
Rx Wavelength Bandwidth
37 nm (1528-1565 nm)
Minimum Transmitting Power
0 dBm
Maximum Transmitting Power
5 dBm
Receiver Sensitivity
-24 dBm
Dispersion
1600 ps/nm
Transmitter Type
EML Laser
Receiver Type
APD Photodiode
Temperature Range
Standard 0°-70°C
Power
+3.3V single power supply
Compliance
CE,Class 1 FDA and IEC60825-1 Laser Safety Compliant,RoHS,SFF-8431,SFP MSA

Finisar compatible FTLX1871y3BxL Datasheet

v3

Complete technical specifications and product details

Updated:Jan 16, 2026Format:PDF

Finisar compatible FTLX1871y3BxL Description

EdgeOptic's FTLX1871 series compatible is a Finisar-coded version of the EdgeOptic 10G-SFP-80 multi-vendor 10GBASE-ZR transceiver. It is a 1550 nm SFP+ optic built to drop in for the Finisar FTLX1871 family, carrying multiple vendor codes from a single universal part. The module reaches 80 km over duplex single-mode fiber on a 23 dB link budget.

The transmitter is a 1550 nm cooled EML laser with output between 0 and +5 dBm. The receiver uses an APD photodiode rated to −24 dBm sensitivity, with chromatic dispersion tolerance of 1600 ps/nm. The optic supports a 1.25 to 11.32 Gbps rate range covering 10G Ethernet ZR, Gigabit Ethernet, 1G through 10G Fibre Channel, and SDH STM-64 at 9.95 Gbps. DDM/DOM diagnostics report live temperature, voltage, bias current, and optical power. The module runs on +3.3V and connects through a duplex LC interface.

FTLX1871y3BxL is the notation Finisar uses in its catalog to group the FTLX1871 family rather than a single orderable part number. The orderable Finisar codes are FTLX1871D3BCL, FTLX1871D3BNL, FTLX1871M3BCL, and FTLX1871M3BNL. They divide along two lines: the D3 codes have no internal CDR while the M3 codes carry internal transmitter and receiver CDR for SONET and SDH jitter compliance, and the BCL codes are rated for a standard −5 to +70 °C case temperature while the BNL codes are rated for an extended −5 to +85 °C range. Each of the four concrete SKUs has a dedicated compatible page.

All four variants share the 10GBASE-ZR optical engine. The EdgeOptic compatible is built to the 10G-SFP-80 specification with a 0 to 70 °C operating range. The module is CE marked, Class 1 laser safe per IEC 60825-1 and FDA, RoHS compliant, and built to the SFF-8431 SFP+ MSA. Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. To match the exact CDR and temperature variant your deployment needs, contact our sales team.

Frequently Asked Questions

What does the FTLX1871y3BxL notation cover and which part do I order?

FTLX1871y3BxL is the notation Finisar uses in its catalog to represent the FTLX1871 family as a group, not a single orderable part. The orderable codes are FTLX1871D3BCL and FTLX1871D3BNL (no internal CDR) and FTLX1871M3BCL and FTLX1871M3BNL (internal CDR), where the BCL forms are standard −5 to +70 °C and the BNL forms are extended −5 to +85 °C. Pick the CDR and temperature combination your deployment needs, or contact our sales team to confirm the right variant.