EX-SFP-1GE-SX: Juniper 1000BASE-SX SFP Optical Transceiver Module
Also listed as: 740-011613, HFBR-57E0P-J, FTRJ8519P3BNL-J1
The Juniper EX-SFP-1GE-SX is a 1000BASE-SX SFP optical transceiver providing Gigabit Ethernet connectivity up to 550 meters over multimode fibre for EX Series switches.
Specifications
| Part number | EX-SFP-1GE-SX |
|---|---|
| Brand | Juniper |
| Type | Transceivers |
| Other numbers | 740-011613, HFBR-57E0P-J, FTRJ8519P3BNL-J1 |
| Status | current |
| Form factor | SFP |
| Speed | 1GbE |
| Wavelength nm | 850 |
| Connector | LC duplex |
| Cable type | Multimode Fibre |
| Max distance m | 550 |
About the EX-SFP-1GE-SX
The Juniper EX-SFP-1GE-SX optical transceiver provides standard Gigabit Ethernet optical connectivity across building risers and short campus runs. Utilizing an 850 nanometer VCSEL transmitter over multimode optical cabling, it enables high reliability interconnects between legacy network gear and modern enterprise access switches.
Compatibility
Compatible with Juniper EX2200, EX2300, EX3300, EX3400, EX4200, EX4300, EX4400, and SRX Series security gateways. It operates in standard SFP cages as well as dual-rate SFP+ ports configured for 1Gbps operational mode across Junos OS network environments.
How to identify a genuine unit
Enclosed in a compact SFP metal shell featuring a black optical release latch bail indicating 850nm multimode operation. The adhesive label displays the Juniper Networks logo, part number EX-SFP-1GE-SX, factory assembly code 740-011613, and serial barcode.
Buying used
Verify that the optical bore is free from dust or microscopic scratching and check that the spring-loaded release lever latches securely. Install into a target switch port and confirm that Junos OS identifies the SFP type correctly and reports link up at 1000Mbps full duplex.
Fits these models
- Juniper EX Series EX2200
- Juniper EX Series EX2300
- Juniper EX Series EX2300-C
- Juniper EX Series EX3300
- Juniper EX Series EX3400
- Juniper EX Series EX4200
- Juniper EX Series EX4300
- Juniper EX Series EX4300 Multigigabit
- Juniper EX Series EX4400
- Juniper EX Series EX4400 Multigigabit
- Juniper EX Series EX9204
- Juniper EX Series EX9208
- Juniper EX Series EX9214
- Juniper SRX Series SRX300
- Juniper SRX Series SRX320
- Juniper SRX Series SRX340
- Juniper SRX Series SRX345
- Juniper SRX Series SRX380
- Juniper SRX Series SRX550
Check compatibility with Juniper
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Juniper has tested with the Juniper EX-SFP-1GE-SX.
- Compatibility Juniper Hardware Compatibility Tool (optics and modules)
- Specifications Juniper TechLibrary
- Support Juniper Support
FAQ
What is the maximum reach of the EX-SFP-1GE-SX module?
It supports links up to 550 meters on 50-micron multimode fibre and 220 meters on 62.5-micron fibre.
Can EX-SFP-1GE-SX be installed in SFP+ ports?
Yes, on Juniper switches with dual-speed SFP/SFP+ ports configured for 1GbE speed.
Buying or selling EX-SFP-1GE-SX?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Juniper Hardware Compatibility Tool EX-SFP-1GE-SX, checked 2026-10-27