2 layers315.6 × 129.8 mm
2 layers80 × 50 mm
Chao Recruit
scottcjx/Chao-Recruit- Size
- 80 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 137
- Nets
- 121
- Pads
- 453
- Tracks, vias
- 637, 207
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 6 Jan 2025
- Updated
- 22 Mar 2025
Overview
Chao Recruit is an open-source printed circuit board by scottcjx, from the scottcjx/Chao-Recruit repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 80 × 50 mm with 137 parts on 121 nets, routed with 637 tracks and 207 vias.
It is built around the STM32F072C8T6, TJA1042T/3/1J and AMS1117-3.3, with the AMS1117-5.0, USBLC6-2SC6 and AO3400A among its other parts. Its parts include 44 resistors, 27 diodes, 23 capacitors, 10 transistors and 9 connectors. It belongs with the STM32 boards of this library.
Main components
11
STM32F072C8T6
LQFP-48(7x7)-40℃~+85℃ 1.65V~3.6V 12bit 12bit 16KB 32 Bit 37 48MHz 64KB ARM Cortex-M0 Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
TJA1042T/3/1J
SOIC-8-40℃~+150℃ 15uA 4.5V~5.5V 5Mbps 70mA SOIC-8 CAN Transceivers ROHSNXP SemiconductorsCAN Transceivers
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsAMS1117-5.0
SOT-223-40℃~+125℃ 1 1.3V 15V 1A 5V 60dB Fixed Positive Short Circuit Protection、Thermal shutdown SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
CESD12VD3
SOD-3231 12V 16.5V 1uA 220W@8/20us 24V 45pF 9A@8/20us ESD IEC 61000-4-2 Unidirectional SOD-323 ESD and Surge Protection (TVS/ESD) ROHSJiangsu Changjing Electronics Technology (CJ)ESD And Surge Protection (TVS/ESD)CESD5V0D3 ZA
SOD-32310uA 15.5V 15A 350W 350pF 5V 7.3V ESD IEC 61000-4-2 Unidirectional SOD-323 ESD and Surge Protection (TVS/ESD) ROHSJiangsu Changjing Electronics Technology (CJ)ESD And Surge Protection (TVS/ESD)
CBG160808U121T
06031 120Ω@100MHz 200mA 300mΩ ±25% 0603 Ferrite Beads ROHSGuangdong Fenghua Advanced Tech (FH)Ferrite BeadsESDCAN24-2BLY
SOT-23140W@8/20us 2 24V 26.7V 40V 4A@8/20us 7pF、10pF、18pF 80nA Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 SOT-23 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
SMD0805-050-16V
0805-40℃~+85℃ 100A 150mΩ 16V 1A 500mA 500mW 850mΩ 8s 0805 Resettable Fuses ROHSTECHFUSEResettable Fuses
Parts
137| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 100n | Capacitor_SMD:C_0402_1005Metric | C101, C102, C103, C104, C107, C108, C109, C112, C113, C116, C201, C202, C203, C204, C501, C502 |
| 13 | 4k7 | Resistor_SMD:R_0402_1005Metric | R102, R106, R107, R201, R204, R207, R210, R213, R216, R219, R222, R226, R233 |
| 10 | 10 | Resistor_SMD:R_0402_1005Metric | R205, R206, R211, R212, R217, R218, R223, R224, R227, R234 |
| 10 | 100k | Resistor_SMD:R_0402_1005Metric | R202, R203, R208, R209, R214, R215, R220, R221, R225, R231 |
| 10 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q201, Q202, Q203, Q204, Q205, Q206, Q207, Q208, Q209, Q210 |
| 7 | 10u | Capacitor_SMD:C_0603_1608Metric | C105, C106, C110, C111, C114, C115, C301 |
| 7 | D | Diode_SMD:D_SOD-323 | D101, D202, D205, D209, D212, D214, D216 |
| 5 | 10k | Resistor_SMD:R_0402_1005Metric | R101, R104, R105, R228, R229 |
| 5 | Yellow | LED_SMD:LED_0603_1608Metric | D201, D204, D208, D211, D213 |
| 5 | Yellow LED | LED_SMD:LED_0603_1608Metric | D203, D207, D210, D215, D217 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_4.3mm_M4_DIN965_Pad_TopBottom | H101, H102, H103, H104 |
| 4 | SW_Push | NVF-Kicad:PushBtn_TS-1187A-B-A-B | SW101, SW102, SW201, SW202 |
| 3 | 1k | Resistor_SMD:R_0402_1005Metric | R103, R230, R232 |
| 3 | CESD12VD3 | Diode_SMD:D_SOD-323 | D106, D109, D206 |
| 3 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J211, J213, J214 |
| 2 | 5k1 | Resistor_SMD:R_0402_1005Metric | R301, R302 |
| 2 | CESD5V0D3ZA | Diode_SMD:D_SOD-323 | D110, D301 |
| 2 | RV 10k | NVF-Kicad:RV_Bourns_3362 | RV201, RV202 |
| 2 | Red | LED_SMD:LED_0603_1608Metric | D108, D111 |
| 1 | 120 | Resistor_SMD:R_0402_1005Metric | R501 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U102 |
| 1 | AMS1117-5.0 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U103 |
| 1 | ANA1_TP | TestPoint:TestPoint_THTPad_D1.5mm_Drill0.7mm | TP201 |
| 1 | ANA2_TP | TestPoint:TestPoint_THTPad_D1.5mm_Drill0.7mm | TP203 |
| 1 | CBG160808U121T | Inductor_SMD:L_0603_1608Metric | L101 |
| 1 | CESD3V3D3ZA | Diode_SMD:D_SOD-323 | D107 |
| 1 | CanBus | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J207 |
| 1 | ESDCAN24-2BLY | Package_TO_SOT_SMD:SOT-23 | D501 |
| 1 | Fuse | NVF-Kicad:FUSE-Littelfuse_Nano2_154x | F101 |
| 1 | GND_TP | TestPoint:TestPoint_THTPad_D1.5mm_Drill0.7mm | TP202 |
| 1 | Jumper_2_Open | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP101 |
| 1 | OPA2197IDR | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U201 |
| 1 | Pwr | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J205 |
| 1 | Pwr Interconnect | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical | J202 |
| 1 | Red LED | LED_SMD:LED_0603_1608Metric | D103 |
| 1 | SMD0805-050-16V | Fuse:Fuse_0805_2012Metric | F301 |
| 1 | SN74HC245PWR | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U202 |
| 1 | STM32F072C8T6 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U101 |
| 1 | SWD | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J101 |
| 1 | Sig Interconnect | Connector_PinHeader_2.54mm:PinHeader_2x16_P2.54mm_Vertical | J204 |
| 1 | TJA1042T-3 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U501 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U301 |
| 1 | USB_C | NVF-Kicad:USBC_HRO_TYPE-C-31-M-12 | J301 |
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Questions
How big is the Chao Recruit PCB?
It measures 80 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Chao Recruit use?
137 parts, built around the STM32F072C8T6, TJA1042T/3/1J, AMS1117-3.3 and AMS1117-5.0. 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 Chao Recruit KiCad files?
From the scottcjx/Chao-Recruit repository on GitHub, at the commit this page was made from: the board is HDK/Chao Recruit.kicad_pcb and its schematic HDK/Chao Recruit.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Chao Recruit design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).