2 layers75.5 × 65 mm
4 layers44 × 95 mm
Handheld Prototype Zero
ParuHangRai-PRI/WAS_PCB_prototype- Size
- 44 × 95 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 185
- Nets
- 191
- Pads
- 612
- Tracks, vias
- 953, 612
- Pours
- 11
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 19 May 2026
- Updated
- 19 May 2026
Overview
Handheld Prototype Zero is an open-source printed circuit board by ParuHangRai-PRI, from the ParuHangRai-PRI/WAS_PCB_prototype repository on GitHub. It is a 4-layer board of 44 × 95 mm with 185 parts on 191 nets, routed with 953 tracks and 612 vias.
It is built around the AD8626AR, AL8843QSP and LM3478MA, with the TLV271CW5, AP2114H-3.3TRG1 and AMS1117CD-5.0 among its other parts. Its parts include 69 capacitors, 49 resistors, 13 ICs, 11 transistors and 8 diodes. It belongs with the STM32 boards of this library.
Main components
12
AD8626AR
SOIC-8-13V~-2.5V、2.5V~13V -40℃~+85℃ 0.25pA 0.5pA 10mA 17.5nV/√Hz@1kHz 2 2.5uV/℃ 50uV 5MHz 5V/us 5V~26V 630uA 87dB Built-in compensation、High capacitive load driving Rail-to-rail output SOIC-8 FET Input Amplifiers ROHSAnalog DevicesFET Input Amplifiers
AL8843QSP
SOIC-8-EP-40℃~+125℃ 1 1MHz 3A 4% 4.5V~40V Analog、PWM Buck Built-in DC-DC Over-Temperature Protection (OTP)、Short-Circuit Protection SOIC-8-EP LED Drivers ROHSDiodes IncorporatedLED DriversLM3478MA
SOIC-8-40℃~+125℃@(TJ) 1 1MHz 2.97V~40V Boost Boost、SEPIC、Flyback External No SOIC-8 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
TLV271CW5
SOT-25-8V~-1.35V、1.35V~8V 0℃~+70℃ 1 1pA 1pA 2.7V~16V 2MHz 2V/us 35nV/√Hz@1kHz 4mA 500uV 550uA 65dB 6uV/℃ Rail-to-rail output SOT-25 Operational Amplifier ROHSDiodes IncorporatedOperational Amplifier
AP2114H-3.3TRG1
SOT-223-40℃~+85℃@(Ta) 1 1A 3.3V 30uVrms 450mV@(1A) 65dB@(1kHz) 65uA 6V Fixed Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
AMS1117CD-5.0
TO-252-2-40℃~+125℃@(Tj) 0.003%Vout 1 1.3V@(1A) 10mA 18V 1A 5V 75dB@(120Hz) Fixed Over Current Protection Positive TO-252-2 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSUMWVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
PMEG3030EP
SOD-1281 Independent 30V 360mV@3A 3A 50A 5mA@30V SOD-128 Schottky Diodes ROHSNexperiaSchottky Diodes
IRLML6344
SOT-23-55℃~+150℃ 1 N-channel 1.1V 1.3W 29mΩ@4.5V 30V 46pF 5A 6.8nC@4.5V 650pF SOT-23 MOSFETs ROHSGuangdong HottechMOSFETs
MBR0530
SOD-1231 Independent 30V 5.5A 500mA 550mV@500mA 80uA@30V SOD-123 Schottky Diodes ROHSJiangsu Changjing Electronics Technology (CJ)Schottky Diodes
150066RG74000
SMD-4P,1.6x1.6mm-40℃~+85℃ 130° 20mA 2V、3.2V 300mcd、560mcd 515nm、630nm 520nm、625nm 72mW、105mW Discrete Diode Red, Emerald Green Water Clear SMD-4P,1.6x1.6mm LED Indication - Discrete ROHSWürth ElektronikLight Emitting Diodes (LED)DMP3098L
SOT-23-55℃~+150℃ 1 P-Channel 1.08W 120mΩ@4.5V 147pF 2.1V 210pF 3.8A 30V 336pF 8nC@4.5V SOT-23 MOSFETs ROHSDiodes IncorporatedMOSFETs
ESD9B5.0ST5G
SOD-923(0402)-55℃~+125℃ 1 10V 15pF 5V 8.4V 80W@8/20us 80nA 8A@8/20us Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5 SOD-923(0402) ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
README
README.mdPCB projects related to WAS
Created March 19 2026. Paru Hang Rai
Handheld WAS
Schematics of the Handheld version of WAS.
USB PD
Schematics of the Type-C integration with USB-PD using CYPD-3177. Intended as a barrel jack connector replacement.
Always maintain appropriate gitignore before pushing
Parts
185| Qty | Value | Footprint | References |
|---|---|---|---|
| 30 | 0.1u | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C303, C304, C305, C307, C403, C504, C505, C506, C507, C508, C509, C510, C511, C512, C513, C514 +14 |
| 9 | 10u | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C306, C401, C404, C501, C525, C602, C605, C801, C813 |
| 9 | TestPoint | TestPoint:TestPoint_Pad_D1.5mm | TP301, TP302, TP401, TP501, TP502, TP503, TP504, TP601, TP801 |
| 8 | 10u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C201, C301, C402, C502, C522, C529, C802, C805 |
| 7 | 10k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R401, R402, R511, R703, R706, R711, R802 |
| 6 | 4.7k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R305, R306, R307, R701, R705, R710 |
| 6 | MMBT3904LG | Package_TO_SOT_SMD:SOT-23 | Q302, Q303, Q401, Q701, Q702, Q703 |
| 5 | 100 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R503, R504, R505, R709, R804 |
| 4 | 100u | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C302, C521, C524, C527 |
| 4 | 5k1 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R508, R509, R707, R708 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H101, H102, H103, H104 |
| 3 | 1k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R302, R304, R805 |
| 3 | 22u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C503, C523, C528 |
| 3 | 470 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R601, R605, R606 |
| 3 | PMEG3030EP | Diode_SMD:D_SOD-128 | D501, D502, D801 |
| 2 | 0 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R507, R510 |
| 2 | 0.022R | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R301, R801 |
| 2 | 10R | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R502, R506 |
| 2 | 2.2p | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C532, C534 |
| 2 | 2.2u | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C535, C536 |
| 2 | 30p | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C530, C531 |
| 2 | AP2114H-3.3TRG1 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U502, U503 |
| 2 | Conn_01x01 | TestPoint:TestPoint_Pad_D1.5mm | J501, J502 |
| 2 | INA180A2 | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U301, U803 |
| 2 | IRLML6344 | Package_TO_SOT_SMD:SOT-23 | Q801, Q802 |
| 2 | MBR0530 | Diode_SMD:D_SOD-123 | D201, D601 |
| 2 | SMMBT3906LG | Package_TO_SOT_SMD:SOT-23 | Q402, Q601 |
| 1 | 0.15R | Resistor_SMD:R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R807 |
| 1 | 0.1n | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C810 |
| 1 | 0.1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C202 |
| 1 | 0.68R | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R201 |
| 1 | 1.4k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R604 |
| 1 | 1.8k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R806 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R512 |
| 1 | 100u | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C807 |
| 1 | 10M | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R602 |
| 1 | 10p | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C812 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C519 |
| 1 | 150066RG74000 | Addendum:LED_RG74000_WRE | LED701 |
| 1 | 15k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R803 |
| 1 | 180 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R702 |
| 1 | 1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C203 |
| 1 | 2 cell female connector | Connector_JST:JST_PH_S4B-PH-SM4-TB_1x04-1MP_P2.00mm_Horizontal | J301 |
| 1 | 2.4p | Addendum:CAP_1111_HIQ_KNO | C603 |
| 1 | 20k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R309 |
| 1 | 220 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R704 |
| 1 | 220p | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C811 |
| 1 | 3.3k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R808 |
| 1 | 33k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R308 |
| 1 | 33u | Custom:33u inductor | L201 |
| 1 | 4.3K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R603 |
| 1 | 47R | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R501 |
| 1 | 47u | Capacitor_SMD:CP_Elec_6.3x5.8 | C808 |
| 1 | 8.2k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R303 |
| 1 | AD8626 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U601 |
| 1 | AL8843Q | Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm_ThermalVias | U201 |
| 1 | AMS1117CD-5.0 | Package_TO_SOT_SMD:TO-252-2 | U501 |
| 1 | Boot 0 | Custom:3 pad | JP501 |
| 1 | Buzzer | Addendum:BUZ_SMD_FUET-5020 | BZ701 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J201 |
| 1 | DMP3098L | Package_TO_SOT_SMD:SOT-23 | Q301 |
| 1 | D_Photo | Custom:S1226-5BK_PCB_Solder | D602 |
| 1 | ESD9B5.0ST5G | Diode_SMD:D_SOD-923 | D503 |
| 1 | Fuse | Fuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F301 |
| 1 | LM3478MA | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U802 |
| 1 | LM74700 | Package_TO_SOT_SMD:SOT-23-6_Handsoldering | U804 |
| 1 | LOGO | pri-logo:pri_logo_5mm | G*** |
| 1 | NRST_SW | Addendum:SW-SMD_L3.9-W3.0-P4.45 | SW501 |
| 1 | NetTie_2 | NetTie:NetTie-2_SMD_Pad0.5mm | NT501 |
| 1 | OLED-Mount | Addendum:OLED_0.96 | J701 |
| 1 | PSTMAA4030-8R2MB | Addendum:IND_PSTMAA4030-8R2MB | L801 |
| 1 | Q13FC1350004900, 6p | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y502 |
| 1 | SMS-402F | Addendum:SMS402F | SH601 |
| 1 | STLINK_V3_MINIE | WAS_footprints:CONN_3220-14-0300-00_CNC | J503 |
| 1 | STM32H743ZITx | Package_QFP:LQFP-144_20x20mm_P0.5mm | U504 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP301 |
| 1 | SolderJumper_3_Open | Jumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm | JP801 |
| 1 | TL431DBZ | Package_TO_SOT_SMD:SOT-23 | U602 |
| 1 | TLV271CW5 | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U401 |
| 1 | TLV70033_SOT23-5 | Package_TO_SOT_SMD:SOT-23-5 | U801 |
The 181 most common of 185 parts.
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Questions
How big is the Handheld Prototype Zero PCB?
It measures 44 × 95 mm and has 4 copper layers, 1.61 mm thick.
What parts does the Handheld Prototype Zero use?
185 parts, built around the AD8626AR, AL8843QSP, LM3478MA and TLV271CW5. 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 Handheld Prototype Zero KiCad files?
From the ParuHangRai-PRI/WAS_PCB_prototype repository on GitHub, at the commit this page was made from: the board is Handheld WAS/Handheld_Prototype_Zero.kicad_pcb and its schematic Handheld WAS/Boost.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Handheld Prototype Zero design in my own project?
Its repository states no licence, so its author keeps all rights: ask ParuHangRai-PRI before reusing the design.