2 layers100 × 50 mm
2 layers100 × 50 mm
Sfp receiver
b4ck5p4c3/caroline1🕰️ Primary Clock & Frequency Reference
- Size
- 100 × 50 mm
- Copper layers
- 2
- Thickness
- 1.58 mm
- Parts
- 32
- Nets
- 27
- Pads
- 134
- Tracks, vias
- 149, 0
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 22 Aug 2025
- Updated
- 30 Aug 2026
Overview
Sfp receiver is an open-source printed circuit board by b4ck5p4c3, from the b4ck5p4c3/caroline repository on GitHub, published under the MIT licence. It is a 2-layer board of 100 × 50 mm with 32 parts on 27 nets, routed with 149 tracks and 0 vias.
It is built around the 74LVC2G17GW, 74LVC1GU04DRL and SN65MLVD200AD, with the CAT16-472J4LF, PESD12VS1UB and SS14 among its other parts. Its parts include 7 resistors, 6 capacitors, 4 ICs, 4 diodes and 4 connectors. It belongs with the lEDs and displays boards of this library.
Main components
6
74LVC2G17GW
SOT-363-40℃~+125℃ 1 1.65V~5.5V 10uA 2 24mA 24mA 5.4ns@3.3V,50pF 74LVC Schmitt trigger Unidirectional SOT-363 Buffers, Drivers, Receivers, Transceivers ROHSTECH PUBLICBuffers, Drivers, Receivers, Transceivers
74LVC1GU04DRL
-- Logic Gates ROHSTexas InstrumentsLogic Gates
SN65MLVD200AD
SOIC-8100Mbps 3V~3.6V SOIC-8 LVDS ICs ROHSTexas InstrumentsLVDS ICs
CAT16-472J4LF
0603x44 4.7kΩ 62.5mW 8 ±200ppm/℃ ±5% 0603x4 Resistor Networks, Arrays ROHSBournsResistor Networks & Arrays
PESD12VS1UB
SOD-523-55℃~+125℃ 1 12V 150W@8/20us 15V 19V、30V 200nA 35pF IEC 61000-4-2、IEC 61000-4-4 TVS Unidirectional SOD-523 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
SS14
SMA(DO-214AC)-55℃~+150℃ 1A 25A 300uA@40V 40V 550mV@1A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
README
README.mdProject Caroline
Stratum 1 NTP server and clock reference based on surplus Huawei LMPT board.
TBD
License
These licenses apply to this repository, unless otherwise noted:
- MIT X11 License for software, configuration files, and documentation.
- CERN-OHL-S for hardware design files.
Acknowledgments
Parts
32| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | M3 Pad Hole | MountingHole:MountingHole_3.2mm_M3_Pad_TopBottom | H1, H2, H3, H4 |
| 3 | 0.1uF 6.3V | Capacitor_SMD:C_0805_2012Metric | C2, C3, C6 |
| 2 | 10uF 16V | Capacitor_SMD:C_0805_2012Metric | C1, C5 |
| 2 | 33R | Resistor_SMD:R_0805_2012Metric | R9, R10 |
| 2 | 470R | Resistor_SMD:R_0805_2012Metric | R5, R6 |
| 2 | 5K1 | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 1 | 100K | Resistor_SMD:R_0805_2012Metric | R4 |
| 1 | 470uF 16V | Capacitor_SMD:C_Elec_10x10.2 | C4 |
| 1 | 74LVC1GU04DRL | Package_TO_SOT_SMD:SOT-553 | U3 |
| 1 | 74LVC2G17 | Package_TO_SOT_SMD:SOT-23-6 | U4 |
| 1 | Amber | LED_SMD:LED_1206_3216Metric | D3 |
| 1 | Blue | LED_SMD:LED_1206_3216Metric | D4 |
| 1 | CAT16-472J4 | Resistor_SMD:R_Array_Concave_4x0603 | RN1 |
| 1 | CLK | TestPoint:TestPoint_Pad_D1.5mm | TP1 |
| 1 | CLK1 | Connector_Coaxial:SMA_Amphenol_132203-12_Horizontal | J2 |
| 1 | CLK2 | Connector_Coaxial:SMA_Amphenol_132203-12_Horizontal | J3 |
| 1 | GND | TestPoint:TestPoint_Pad_1.5x1.5mm | TP2 |
| 1 | Jack-DC | Connector_BarrelJack:BarrelJack_Horizontal | J6 |
| 1 | LT1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | PESD12VS1UB | Diode_SMD:D_SOD-523 | D1 |
| 1 | SFP | BKSP:Connector_SFP_Cage_NoKeepout | J1 |
| 1 | SN65MLVD200AD | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | SS14 | Diode_SMD:D_SMA | D2 |
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Questions
How big is the Sfp receiver PCB?
It measures 100 × 50 mm and has 2 copper layers, 1.58 mm thick.
What parts does the Sfp receiver use?
32 parts, built around the 74LVC2G17GW, 74LVC1GU04DRL, SN65MLVD200AD and CAT16-472J4LF. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Sfp receiver KiCad files?
From the b4ck5p4c3/caroline repository on GitHub, at the commit this page was made from: the board is hardware/sfp-receiver/sfp-receiver.kicad_pcb and its schematic hardware/gnss-smt360-carrier/gnss-smt360-carrier.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sfp receiver design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).