JL251A Compatible HPE X140 40G QSFP+ LC BiDi 100m MM Transceiver
HP compatible JL251A - Key Features
- Compatibility: HP
- Media Type: Multi-Mode Fiber (MMF) -OM3/OM4/OM5
- Connector: Double LC/UPC
- Fiber Count: Duplex
- Maximum Distance: 150 m
- Average Link Budget: 2 dB
- Tx Wavelength: 850 nm
- Supported Data Rate: 41.25 Gbps
- DDM/DOM: Supported
- Temperature Range: Standard 0°-70°C
HP JL251A Price
In Stock - Ships Next Business DayHP compatible JL251A Specifications
Form Factor | QSFP+ |
Modulation | NRZ (Non-Return to Zero) |
Media Type | Multi-Mode Fiber (MMF) -OM3/OM4/OM5 |
Connector | Double LC/UPC |
Fiber Count | Duplex |
Maximum Distance | 150 m |
Average Link Budget | 2 dB |
TX Wavelength | Dual 850/900 nm |
RX Wavelength | Dual 850/900 nm |
Supported Data Rate | 41.25 Gbps |
Supported Ethernet Applications | 40G Ethernet (41.25Gbps) |
Optical Transport Network (OTN) Applications | OTU3 (43.01Gbps), OTU3e2 (44.58Gbps) |
SDH/SONET Standards | STM-256 (39.81 Gbps) |
DDM/DOM | Supported |
Transmitter Type | VSCEL Laser |
Tx Wave Bandwidth | 36nm (Ch1:832-868nm and Ch2: 882-918nm) |
Average Launch Power (Min) Each Lane | -4 dBm |
Average Launch Power (Max) Each Lane | 5 dBm |
Receiver Type | PIN photodiode |
Average Receiver Sensitivity (Min) Each Lane | -6 dBm |
Average Receiver Sensitivity (Max) Each Lane | 3 dBm |
Receiver Overload | 3 dBm |
Temperature Range | Standard 0°-70°C |
Storage Temperature | -40° to 85°C |
Relative Humidity | 5 to 85% |
Power | +3.3V single power supply |
Compliance | IEEE 802.3ba, CE, Class 1 FDA and IEC60825-1 Laser Safety Compliant, INF-8438i, QSFP+ MSA, RoHS, SFF-8436 |
HP compatible JL251A Datasheet
v3Complete technical specifications and product details
HP compatible JL251A Description
EdgeOptic's JL251A compatible is an HPE-coded version of the EdgeOptic BIDI-40G-QSFP-150 multi-vendor 40G BiDi QSFP+ transceiver. HPE markets JL251A as the X140 40G QSFP+ LC BiDi 100m MM Transceiver, and that 100m figure is HPE's own headline reach for this ordering code on OM3 multimode fiber. The underlying BiDi QSFP+ hardware carries a 150m reach on OM4 and OM5 fiber, with 100m the practical distance on OM3, so HPE's "100m MM" naming reflects the OM3 case rather than a hard ceiling on the module itself. Confirm the fiber grade in the run before assuming which distance applies.
The transceiver uses a single duplex LC connector and carries two wavelengths, 850nm and 900nm, over the same fiber pair rather than the four parallel 850nm lanes over an 8-fiber MPO/MTP that standard 40GBASE-SR4 uses, so one duplex LC patch replaces the MPO/MTP cabling that plain 40GBASE-SR4 needs. Transmit and receive optics are VCSEL lasers paired with PIN photodiodes, with launch power from -4 to 5 dBm per lane, receive sensitivity from -6 to 3 dBm per lane, and a receiver overload point of 3 dBm per lane. DDM reporting covers temperature, supply voltage, bias current, and per-lane Tx and Rx power.
JL251A is HPE's ordering code in the X140 BiDi family for QSFP+-equipped HPE switching platforms. The module operates from 0 to 70C and follows the QSFP+ MSA (SFF-8436) and INF-8438i electrical and mechanical interface, with IEEE 802.3ba governing the QSFP+ host electrical interface only, not the BiDi optical scheme itself. The compatible is built to match the HPE X140 series specification for BiDi reach, launch power and DDM reporting, and carries HPE-recognized EEPROM so the module registers on HPE switch platforms without a vendor-override step. Certifications include CE and RoHS.
Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For project-quantity pricing or alternative vendor coding, contact our sales team.
Frequently Asked Questions
Does JL251A reach 150m or 100m over multimode fiber?
HPE names JL251A the 100m MM transceiver, matching its own headline OM3 multimode reach figure for this ordering code. The BiDi QSFP+ hardware behind JL251A carries a 150m reach on OM4 and OM5 multimode fiber, with 100m the reach on OM3. Match the fiber grade in your run to the reach class before assuming which distance applies.
What cable and connector does JL251A use?
JL251A terminates on a single duplex LC connector rather than the MPO/MTP connector used by standard 40GBASE-SR4 QSFP+ modules. The BiDi design carries both transmit and receive signals over the same duplex LC fiber pair using two wavelengths, 850nm and 900nm.
How is JL251A different from the HPE Aruba JL308A 40G QSFP+ BiDi transceiver?
JL251A and JL308A are both HPE ordering codes for a 40G QSFP+ LC BiDi transceiver, differentiated by HPE's own naming: JL251A carries the 100m MM designation and JL308A carries HPE's 150m MMF designation. The underlying BiDi hardware may be common between the two; the difference is primarily HPE's ordering-code and switch supported-transceiver-list scope rather than a confirmed hardware reach gap. Order the part number that HPE lists as supported for your specific switch model.