Juniper / Juniper optical transceivers

Juniper QSFP-100G-ZR4 · 740-120240

P/N: 740-120240

Optical TransceiverQSFP-100G-ZR4

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: 100 Gigabit Ethernet · Form Factor: QSFP28 · Connector: Duplex LC PC/UPC · Juniper Custom / Distance: 2 m to 60 km

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Juniper QSFP-100G-ZR4 · 740-120240 — 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
740-120240
Manufacturer model
QSFP-100G-ZR4
Part Number
740-120240
Speed
100 Gigabit Ethernet
Breakout Capable
No
Form Factor
QSFP28
Product Type
Optical Transceiver
Connector
Duplex LC PC/UPC
Monitoring Available
Yes
Digital Optical Monitoring
Yes
Juniper Custom / Cable type
SMF
Juniper Custom / Core size/cladding
9/125 µm
Juniper Custom / Digital Diagnostic Monitoring
Transceiver Temperature Transceiver Supply Voltage Tx Bias Current Tx output power Rx received optical power
Juniper Custom / Distance
2 m to 60 km
Juniper Custom / Distance / source qualification
For distance beyond 60 km, check the Additional Information for more details.
Juniper Custom / MSA compliance (SFF, for e.g. SFF-8665)
SFF-8636
Juniper Custom / Maximum Power consumption (W)
5.5 W
Juniper Custom / Operating Temperature (range)
0° C to 70° C
Juniper Custom / Receive lane wavelengths (range)
1294.53nm to 1296.59nm 1299.02nm to 1301.09nm 1303.54nm to 1305.63nm 1308.09nm to 1310.19nm
Juniper Custom / Receiver input power, each lane (maximum)
4.5 dBm
Juniper Custom / Receiver input power, each lane (minimum)
-28 dBm
Juniper Custom / Receiver sensitivity (OMA), each lane (maximum)
-26.5 dBm
Juniper Custom / Signaling rate, each lane
25.78125 Gbd, +/-100ppm
Juniper Custom / Storage temperature
–40° C to 85° C
Juniper Custom / Stressed receiver sensitivity (OMA) each lane (maximum)
-26.5 dBm
Juniper Custom / Transmitter fibers
1
Juniper Custom / Transmitter output power, each lane (maximum)
+7 dBm
Juniper Custom / Transmitter output power, each lane (minimum)
+2 dBm
Juniper Custom / Transmitter wavelengths (range)
1294.53nm to 1296.59nm 1299.02nm to 1301.09nm 1303.54nm to 1305.63nm 1308.09nm to 1310.19nm
Juniper Custom / Typical Weight & Dimensions
Weight: 100 gram Height: 8.5 mm Width: 18.35 mm Depth: 72.56 mm
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. Standard reach in the table is 2 m–60 km. Longer links require an engineered attenuation/connector/TDP budget, not an unconditional 80 km claim. Fully populated QFX AFI chassis have separate altitude-dependent ambient limits in sourceQualifications; the module operating-temperature range is not a chassis ambient guarantee.
HCT interoperability and reach qualifications
QSFP-100G-ZR4 has a tabulated reach of 2 m–60 km; longer links require separate loss-budget engineering, not an unconditional rating. With every QSFP28 port populated by these optics, AFI chassis ambient limits at sea level / 6000 ft are: QFX5120-48YM 43/37°C; QFX5210-64C 42/36°C; QFX5120-48T 34/28°C. The named AFO versions do not receive this reduction. Module temperature is not the chassis ambient rating.

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.