2 layers100 × 100 mm
2 layers50 × 50 mm
Mfx link2
GBert/misc99miscellaneous stuff / unsorted
- Size
- 50 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 66
- Nets
- 46
- Pads
- 193
- Tracks, vias
- 569, 62
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 29 Aug 2013
- Updated
- 15 Jan 2026
Overview
Mfx link2 is an open-source printed circuit board by GBert, from the GBert/misc repository on GitHub. It is a 2-layer board of 50 × 50 mm with 66 parts on 46 nets, routed with 569 tracks and 62 vias.
It is built around the PIC16F1709-E/P, 78L05 and LM393, with the US1M, 53040C and B5819W among its other parts. Its parts include 24 resistors, 13 diodes, 8 connectors, 7 capacitors and 5 ICs. It belongs with the PIC boards of this library.
Main components
7
PIC16F1709-E/P
PDIP-20-40℃~+125℃ 10bit 14KB 18 1KB 2.3V~5.5V 32MHz 8 Bit 8bit Built-in FLASH PIC PDIP-20 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
78L05
SOT-89-3-20℃~+120℃@(Tj) 1 1.7V 100mA 2mA 30V 40uV 49dB@(120Hz) 5V Fixed Over Temperature Protection、Short Circuit Protection Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSUMWVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
LM393
SOP-8-16V~16V 0℃~+70℃ 2 2.5mA 250nA 2V~36V 36V 5mV 5nA Fail-safe function Open-drain SOP-8 Comparators ROHSMSKSEMIComparators
US1M
SMA-55℃~+150℃ 1 Independent 1.65V@1A 1A 1kV 30A 5uA@1kV 75ns SMA Fast Recovery / High Efficiency Diodes ROHSMDDFast Recovery / High Efficiency Diodes53040C
SMD-8P,8.3x7.2mm50kHz~500kHz 7mΩ Vertical welding SMD-8P,8.3x7.2mm Current Sense Transformers ROHSMurataCurrent Sense Transformers
B5819W
SOD-123-55℃~+125℃ 1.5A 1mA@40V 25A 40V 600mV@1A Standalone SOD-123 Schottky Diodes ROHSMDDSchottky Diodes
MMBT5551
SOT-23-55℃~+150℃ 1 NPN 160V 200 200mV 300MHz 300mW 50nA 600mA 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
README
RPi-Rail/README.mdParts
66| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 1k | Resistor_SMD:R_1206_HandSolderingII | R10, R11, R12, R13, R14 |
| 5 | US1M | Diode_SMD:D_SMA | D1, D2, D3, D4, D5 |
| 4 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C3, C6 |
| 4 | 4k7 | Resistor_SMD:R_0805_HandSolderingII | R4, R6, R16, R19 |
| 3 | 1N4148 | Diode_SMD:D_SOD-323F | D6, D7, D8 |
| 2 | 10k | Resistor_SMD:R_0805_HandSolderingII | R17, R23 |
| 2 | 10uF | Capacitor_SMD:CP_Elec_5x5.9 | C4, C5 |
| 2 | 1K | Resistor_SMD:R_1206_HandSolderingII | R8, R9 |
| 2 | 3k3 | Resistor_SMD:R_0805_HandSolderingII | R20, R21 |
| 2 | 820 | Resistor_SMD:R_0805_HandSolderingII | R0, R1 |
| 2 | US1M | w_smd_diode:do214ac | D11, D12 |
| 1 | 1k | Resistor_SMD:R_0805_HandSolderingII | R7 |
| 1 | 1k5 | Resistor_SMD:R_0805_HandSolderingII | R15 |
| 1 | 1nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C7 |
| 1 | 22 | Resistor_SMD:R_0805_HandSolderingII | R3 |
| 1 | 390 | Resistor_SMD:R_0805_HandSolderingII | R2 |
| 1 | 39k | Resistor_SMD:R_0805_HandSolderingII | R22 |
| 1 | 53040C | Divers:530x0C | T1 |
| 1 | 560 | Resistor_SMD:R_0805_HandSolderingII | R18 |
| 1 | 6N137 | w_pth_circuits:dil_8-300_socket | U1 |
| 1 | 7805 | Package_TO_SOT_SMD:TO-252-2 | U2 |
| 1 | 78L05 | Package_TO_SOT_SMD:SOT-89-3 | U4 |
| 1 | 82 | Resistor_SMD:R_0805_HandSolderingII | R5 |
| 1 | B5819W | Diode_SMD:D_SOD-123 | D9 |
| 1 | CONN_02X03 | Pin_Headers:Pin_Header_Straight_2x03 | P6 |
| 1 | Conn_01x03 | Connector_PinHeader_1.27mm:PinHeader_1x03_P1.27mm_Vertical | J1 |
| 1 | Conn_01x04 | w_conn_mkds:akl0711,5-4 | P1 |
| 1 | Gleisbox | w_conn_pt-1,5:pt_1,5-2-3,5-h | P2 |
| 1 | I2C | w_conn_jst-ph:b4b-ph-kl | P5 |
| 1 | IBT-2 | Socket_Strips:Socket_Strip_Straight_2x04 | P8 |
| 1 | ICSP | ICSP:ICSP | JP1 |
| 1 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D13 |
| 1 | LEDR | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D10 |
| 1 | LM393 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | LOGO | w_logo:Logo_copper_CC-BY-NC-SA_5x2mm | G*** |
| 1 | MMBT5551 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | PIC16F1709 | w_smd_dil:soic-20 | U5 |
| 1 | POTI | Pin_Headers:Pin_Header_Straight_1x03 | P7 |
| 1 | SW_PUSH | w_switch:PCB_PUSH | SW1 |
| 1 | UART | w_conn_jst-ph:b4b-ph-kl | P4 |
The 62 most common of 66 parts.
Questions
How big is the Mfx link2 PCB?
It measures 50 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Mfx link2 use?
66 parts, built around the PIC16F1709-E/P, 78L05, LM393 and US1M. 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 Mfx link2 KiCad files?
From the GBert/misc repository on GitHub, at the commit this page was made from: the board is mfx-link2/mfx-link2.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mfx link2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask GBert before reusing the design.
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