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Juniper / Juniper optical transceivers

Juniper EX-SFP-1GE-LX40K · 740-017726

P/N: 740-017726

Optical TransceiverEX-SFP-1GE-LX40K

Juniper optical module or interconnect cable. Confirm platform/Junos compatibility, fiber, connectors, length, breakout and FEC. Reach applies to the stated profile, not every link. Speed: Gigabit Ethernet · Form Factor: SFP · Connector: Duplex LC PC/UPC · 1GbE-EX / Distance: 40 km

Enquire ↗+998 77 161 11 11 ↗ +998 97 741 55 00 ↗
Juniper EX-SFP-1GE-LX40K · 740-017726 — Specification schematic, not a product photograph or installation drawing.
Specification schematic, not a product photograph or installation drawing. Citadex Systems · Specification source
01 / Specifications
MPN / P/N
740-017726
Manufacturer model
EX-SFP-1GE-LX40K
Part Number
740-017726
Speed
Gigabit Ethernet
Breakout Capable
No
Form Factor
SFP
Product Type
Optical Transceiver
Connector
Duplex LC PC/UPC
Monitoring Available
Yes
Digital Optical Monitoring
Yes
1GbE-EX / Cable type
SMF
1GbE-EX / Core size/cladding
9/125 µm
1GbE-EX / Digital Diagnostic Monitoring
Transceiver Temperature Transceiver Supply Voltage Tx Bias Current Tx output power Rx received optical power
1GbE-EX / Distance
40 km
1GbE-EX / MSA compliance (SFF, for e.g. SFF-8665)
INF-8074i SFF-8472
1GbE-EX / Maximum Power consumption (W)
1.0 W
1GbE-EX / Operating Temperature (range)
0° C to 70° C
1GbE-EX / Receive lane wavelengths (range)
1260 nm to 1380 nm
1GbE-EX / Receiver input power, each lane (maximum)
0 dBm
1GbE-EX / Receiver input power, each lane (minimum)
22.5 dBm
1GbE-EX / Receiver sensitivity (OMA), each lane (maximum)
-22.5 dBm (average power)
1GbE-EX / Signaling rate, each lane
1.25 GBd
1GbE-EX / Standards compliance (Ethernet/OTN Standard, for e.g. 100GBASE-LR4)
Multivendor agreement
1GbE-EX / Storage temperature
–40° C to 85° C
1GbE-EX / Transmitter fibers
SMF
1GbE-EX / Transmitter output power, each lane (maximum)
0 dBm
1GbE-EX / Transmitter output power, each lane (minimum)
-4.5 dBm
1GbE-EX / Transmitter wavelengths (range)
1270 nm to 1355 nm
1GbE-EX / Typical Weight & Dimensions
Width: 14 mm Height: 12.05 mm Length: 57.5 mm Weight: 0.15 lb
Documented selection limits
Reach, rate, form factor and breakout support apply only to the listed standard/mode, fiber grade and platform/port configuration. Keep source qualifiers for FEC, attenuation, transmit/receive limits, temperature, active/passive operation and cable ends. Check Juniper HCT for the exact host, interface module, port mode, Junos release, required QSA adapter and qualifications before ordering. Do not infer universal interoperability or combine power/temperature/reach across model profiles. Optical link budgets are not calculated or inferred.

Specification source: Juniper ↗
Checked against documentation: 19.10.2026

Reference catalogue for quotation requests. Availability, production status, condition, price, lead time and warranty are individually confirmed. A listed part number is not a stock claim.

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