4 layers90.2 × 95.9 mm
4 layers62 × 70 mm
LinkTest
pete4radio/LinkTest_PCBPCB for Dual LinkTesting
- Size
- 62 × 70 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 78
- Nets
- 96
- Pads
- 454
- Tracks, vias
- 108, 0
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 1 Jan 2026
- Updated
- 4 Jan 2026
Overview
LinkTest is an open-source printed circuit board by pete4radio, from the pete4radio/LinkTest_PCB repository on GitHub. It is a 4-layer board of 62 × 70 mm with 78 parts on 96 nets, routed with 108 tracks and 0 vias.
It is built around the ADM1176-1ARMZ-R7, NFM18CC101R1C3D and IRLML2803. Its parts include 12 capacitors, 11 resistors, 4 ICs, 3 diodes and 3 connectors. It belongs with the RP2040 boards of this library.
Main components
3
ADM1176-1ARMZ-R7
MSOP-10-40℃~+85℃ 1 3.15V~16.5V MSOP-10 Surge Protection Devices (SPDs) ROHSAnalog DevicesSurge Protection Devices (SPDs)
NFM18CC101R1C3D
SMD-3P,1.6x0.8mm-55℃~+125℃ 100pF 16V 300mΩ 500mA ±20% SMD-3P,1.6x0.8mm Feed Through Capacitors ROHSMurataFeed Through Capacitors
IRLML2803
SOT-231 N-channel 1.2A 15pF 1V 250mΩ@10V 3.3nC 30V 34pF 540mW 85pF N-Channel SOT-23 MOSFETs ROHSGuangdong HottechMOSFETs
README
README.mdLinkTest_PCB
PCB for Dual LinkTesting
Parts
78| Qty | Value | Footprint | References |
|---|---|---|---|
| 31 | NFM18CC101R1C3D | NFM18CC101R1C3D:FIL_NFM18CC101R1C3D | FL1, FL2, FL10, FL11, FL12, FL13, FL14, FL15, FL16, FL17, FL18, FL19, FL20, FL21, FL22, FL23 +15 |
| 8 | MountingHole_Pad | MountingHole:MountingHole_2.7mm_M2.5_DIN965_Pad | H1, H2, H3, H4, H5, H6, H7, H8 |
| 3 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C5, C10, C11 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric | R6, R9, R10 |
| 2 | 1K | Resistor_SMD:R_0603_1608Metric | R11, R12 |
| 2 | 22uF | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 3.3nF | Capacitor_SMD:C_0603_1608Metric | C8, C12 |
| 2 | 47uF | Capacitor_SMD:C_1210_3225Metric | C3, C4 |
| 2 | Conn_01x01 | TestPoint:TestPoint_Keystone_5019_Miniature | J4, J5 |
| 2 | GREEN LED | LED_SMD:LED_0603_1608Metric | D2, D3 |
| 2 | IRLML2803 | ssi_transistor:SOT-23 | Q1, Q2 |
| 1 | 0.02 | Resistor_SMD:R_2512_6332Metric | R7 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C6 |
| 1 | 121k | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 1655 | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D1 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C9 |
| 1 | 22.1k | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 22pF | Capacitor_SMD:C_0603_1608Metric | C7 |
| 1 | 3.3V EN | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | 3.3uH | ssi_inductor:L_2141 | L1 |
| 1 | 330k | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | ADM1176-1ARMZ-R7 | ssi_IC:ADM1176-1ARMZ-R7 | U4 |
| 1 | Conn_01x04_Socket | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | Jumper_3_Bridged12 | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP2 |
| 1 | LORA1280F27-TCXO | ssi_IC:LORA128XF27 | U3 |
| 1 | RFM98PW | ssi_IC:RFM98PW | U1 |
| 1 | RaspberryPi_Pico | Module:RaspberryPi_Pico_SMD | A1 |
| 1 | TPS54426PWPR | ssi_IC:PWP14_2P31X2P46-L | U2 |
Questions
How big is the LinkTest PCB?
It measures 62 × 70 mm and has 4 copper layers, 1.6 mm thick.
What parts does the LinkTest use?
78 parts, built around the ADM1176-1ARMZ-R7, NFM18CC101R1C3D and IRLML2803. 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 LinkTest KiCad files?
From the pete4radio/LinkTest_PCB repository on GitHub, at the commit this page was made from: the board is LinkTest.kicad_pcb and its schematic LEDS.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LinkTest design in my own project?
Its repository states no licence, so its author keeps all rights: ask pete4radio before reusing the design.
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