Juniper JNP-SFP-25G-SR (740-068639) Compatible 25GBASE-SR SFP28 for QFX5120 and EX4650

EdgeOptic’s JNP-SFP-25G-SR compatible is a Juniper-coded 25GBASE-SR SFP28 version of the EdgeOptic 25G-SFP28-100 multi-vendor 25GBASE-SR SFP28 transceiver. It is a direct replacement for Juniper Networks’ JNP-SFP-25G-SR optical module (Juniper orderable part number 740-068639) and ships with Juniper-recognized EEPROM, so QFX and EX switching chassis identify the module as a native Juniper 25G SR optic. JNP-SFP-25G-SR is the Juniper product model name; 740-068639 is the OPN used in Juniper procurement, spare-part ordering and distributor catalogs. Both strings reference the same module.

Optical performance follows IEEE 802.3by Clause 112: 100 m reach on OM4 or OM5 multimode fiber, 70 m on OM3. Transmit power is −5 to +2.4 dBm, receive sensitivity is −10.3 dBm, link budget 5.3 dB with host RS-FEC (IEEE 802.3by Clause 108). The module uses an 850 nm VCSEL transmitter, a PIN photodiode receiver, and an LC/UPC duplex connector. DOM follows SFF-8472. Line rate is 10.31 to 25.78 Gbps, covering both 10GBASE-SR and 25GBASE-SR host rates. Power consumption is 0.3 W maximum over the 0 to 70°C commercial case temperature range.

JNP-SFP-25G-SR is validated against the 25G-capable Juniper hardware line. On the QFX data-center switching side: QFX5120 Series (25G leaf; QFX5120-48Y carries 48x 25G SFP28 server-facing ports with 8x 100G QSFP28 uplinks; QFX5120-48YM carries the same port map with extended-temperature optics and expanded forwarding-table sizing for service-provider deployments). QFX5220 Series uses QSFP28 cages natively; JNP-SFP-25G-SR applies here only via QSFP28-to-SFP28 breakout cables (4x25G from a single 100G QSFP28 cage), the typical pattern in 100G-to-25G spine-leaf topologies. On the EX campus switching side: EX4650 Series (25G high-density enterprise campus). Confirm the exact sub-model and Junos release against the Juniper Hardware Compatibility Tool at apps.juniper.net/hct before commissioning; Juniper updates the HCT alongside Junos releases and platform interface changes.

On OPN disambiguation: 740-068639 is the Juniper orderable part number for JNP-SFP-25G-SR. It is not the same as 740-071562, which is the JNP-SFP-25G-LR (25GBASE-LR SMF SFP28, 1310 nm, 10 km), a different optical envelope in a different product class and not interchangeable. Some procurement systems surface only the leading-zero-stripped OPN fragment (068639) rather than the full 740-068639 string, especially when legacy distributor feeds are involved; both representations reference the same module, and the full 740-068639 form is the one to use for Junos-side compatibility validation.

DOM readout on Juniper platforms surfaces through Junos transceiver telemetry views where the platform exposes per-port SFP28 optical diagnostics. The SFF-8472 parameter set (transmit power, receive power, laser bias, case temperature, supply voltage) is reported in the Junos transceiver-diagnostics output; the exact CLI path varies by Junos release and chassis PIC type. Certifications: CE, RoHS, Class 1 FDA, IEC 60825-1.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For Junos-release-specific compatibility confirmation on your QFX or EX chassis, multi-site JNP-SFP-25G-SR volume pricing, or reconciliation of 740-068639 against other 740-prefix Juniper OPNs in your procurement system, contact our sales team.