4 layers96.5 × 79 mm
4 layers65 × 80.8 mm
Accessory v2
BlueJayRacing/bjr_kicadjhu blue jay racing daq kicad pcb files
- Size
- 65 × 80.8 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 146
- Nets
- 155
- Pads
- 556
- Tracks, vias
- 1,310, 195
- Pours
- 801
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 11 Jun 2024
- Updated
- 29 Oct 2025
Overview
Accessory v2 is an open-source printed circuit board by BlueJayRacing, from the BlueJayRacing/bjr_kicad repository on GitHub. It is a 4-layer board of 65 × 80.8 mm with 146 parts on 155 nets, routed with 1,310 tracks and 195 vias.
It is built around the TRS 2-1211, OPA347PA and AD5689RARUZ-RL7, with the AD7175-8BCPZ-RL7, DEV-16771 and LT6658AHMSE-2.5#PBF among its other parts. Its parts include 65 capacitors, 52 resistors, 21 ICs, 2 transistors and 2 connectors.
Main components
9TRS 2-1211
SMD-6P,11.9x11.3mm-40℃~+90℃ 1 100kHz 11.3mm 11.9mm 1680uF 30mA 400mA 50mVp-p 5V 80% 8mm 9V~18V Short Circuit Protection、Over Current Protection、Automatic fault recovery、Light load efficient mode ±1% SMD-6P,11.9x11.3mm DC-DC Power Modules ROHSTRACO POWERDC-DC Power Modules
OPA347PA
PDIP-8-55℃~+125℃ 0.5pA 1 10pA 170V/ms 17mA 2.3V~5.5V 27uA 2mV 350kHz 3uV/℃ 60nV/√Hz@1kHz 70dB Built-in compensation Rail-to-Rail Input, Rail-to-Rail Output PDIP-8 Operational Amplifier ROHSTexas InstrumentsOperational Amplifier
AD5689RARUZ-RL7
TSSOP-16-40℃~+105℃ 1.1mA 16 2 2.7V~5.5V 5us 8LSB SPI Voltage Buffer TSSOP-16 Digital to Analog Converters (DAC) ROHSAnalog DevicesDigital To Analog Converters (DAC)
AD7175-8BCPZ-RL7
LFCSP-40(6x6)-40℃~+105℃ 16MHz 24 250kHz 250kHz 2ppm/℃ 4.5V~5.5V 8 8.4mA Built-in Built-in External、Built-in SPI Sigma-Delta Yes LFCSP-40(6x6) Analog to Digital Converters (ADC) ROHSAnalog DevicesAnalog To Digital Converters (ADC)DEV-16771
-- New Arrivals ROHSSparkFun ElectronicsUncategorised
LT6658AHMSE-2.5#PBF
MSOP-16-EP-40℃~+125℃@(Tj) 10ppm/℃ 2.5V~6V 20mA 3mA 4.5V~36V Fixed、Adjustable Series ±0.05% MSOP-16-EP Voltage Reference ROHSAnalog DevicesVoltage ReferenceLT6658AHMSE-5#PBF
MSOP-16-EP-40℃~+125℃@(Tj) 10ppm/℃ 20mA 2ppmrms 3mA 5V~6V 7.5V~36V Fixed、Adjustable Series ±0.05% MSOP-16-EP Voltage Reference ROHSAnalog DevicesVoltage Reference
TPS2113ADRBR
SON-8(3x3)-40℃~+125℃ 2.8V~5.5V 2A 84mΩ Soft-start、Under-voltage lockout、Integrated charge pump、Overcurrent Protection、Over temperature protection、Reverse current blocking SON-8(3x3) Power Distribution Switches ROHSTexas InstrumentsAC-DC Controllers And Regulators
BSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETs
README
README.mdbjr_kicad
jhu blue jay racing daq kicad pcb files
Note: 20xt is mainly for legacy
Parts
146| Qty | Value | Footprint | References |
|---|---|---|---|
| 23 | 0.1uF | Capacitor_SMD:C_0402_1005Metric | C2, C10, C12, C16, C17, C21, C22, C24, C25, C26, C27, C32, C34, C36, C37, C39 +7 |
| 12 | 10uF | Capacitor_SMD:C_0603_1608Metric | C3, C8, C9, C13, C18, C20, C23, C30, C31, C35, C38, C41 |
| 12 | 20R | Resistor_SMD:R_0402_1005Metric | R41, R42, R43, R44, R46, R47, R48, R49, R54, R55, R56, R57 |
| 10 | 100p | Capacitor_SMD:C_0402_1005Metric | C43, C45, C46, C50, C51, C52, C56, C57, C58, C62 |
| 10 | 1nF | Capacitor_SMD:C_0402_1005Metric | C47, C48, C49, C53, C54, C55, C59, C60, C61, C63 |
| 10 | 27.7k | Resistor_SMD:R_0402_1005Metric | R21, R22, R23, R27, R28, R29, R33, R34, R35, R39 |
| 10 | 99.1k | Resistor_SMD:R_0402_1005Metric | R24, R25, R26, R30, R31, R32, R36, R37, R38, R40 |
| 10 | OPA347 | Package_TO_SOT_SMD:SOT-23-5 | U3, U4, U5, U6, U7, U8, U9, U10, U11, U12 |
| 8 | 1uF | Capacitor_SMD:C_0402_1005Metric | C1, C5, C11, C14, C19, C28, C33, C40 |
| 6 | 350 | Resistor_SMD:R_0402_1005Metric | R13, R14, R15, R16, R17, R18 |
| 5 | 10k | Resistor_SMD:R_0402_1005Metric | R5, R6, R7, R11, R12 |
| 2 | 100k | Resistor_SMD:R_0402_1005Metric | R8, R20 |
| 2 | 20 | Resistor_SMD:R_0402_1005Metric | R3, R4 |
| 2 | 22uF | Capacitor_SMD:C_0603_1608Metric | C15, C29 |
| 2 | 52.5 | Resistor_SMD:R_0402_1005Metric | R9, R10 |
| 2 | BSS138 | Package_TO_SOT_SMD:SOT-23-3 | Q1, Q2 |
| 2 | INA821IDGKT | 21xt_footprints:SOP65P490X110-8N | IC4, IC5 |
| 2 | R | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 1 | 200R | Resistor_SMD:R_0402_1005Metric | R19 |
| 1 | 749013011 | 21xt_footprints:749013011 | T1 |
| 1 | AD5689RARUZ-RL7 | 21xt_footprints:SOP65P640X120-16N | IC8 |
| 1 | AD7175-8BCPZ-RL7 | 21xt_footprints:AD7175-8BCPZ-RL7 | IC9 |
| 1 | Battery_Cell | 21xt_footprints:1220 holder | BT1 |
| 1 | Conn_02x23_Counter_Clockwise | 21xt_footprints:aaren_mouser_db44_screws | J1 |
| 1 | DEV-16771 | 21xt_footprints:MODULE_DEV-16771 | U1 |
| 1 | D_Schottky | Diode_SMD:D_1206_3216Metric | D2 |
| 1 | LT6658AHMSE-2.5#PBF | 21xt_footprints:SOP50P490X110-17N | IC1 |
| 1 | LT6658AHMSE-5#PBF | 21xt_footprints:SOP50P490X110-17N | IC2 |
| 1 | Mezzanine Edge | 21xt_footprints:Double Sided Mezzanine Card Edge_Edge Side | J3 |
| 1 | REF3425IDBVR | 21xt_footprints:REF3425IDBVR | IC7 |
| 1 | REF3450IDBVR | 21xt_footprints:REF3450IDBVR | IC3 |
| 1 | TPS2113ADRBR | 21xt_footprints:TPS2113ADRBR | IC10 |
| 1 | TRS_2-1211 | 21xt_footprints:CONV_TRS_2-2419 | PS1 |
| 1 | TXB0108PWR | 21xt_footprints:SOP65P640X120-20N | IC6 |
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Questions
How big is the Accessory v2 PCB?
It measures 65 × 80.8 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Accessory v2 use?
146 parts, built around the TRS 2-1211, OPA347PA, AD5689RARUZ-RL7 and AD7175-8BCPZ-RL7. 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 Accessory v2 KiCad files?
From the BlueJayRacing/bjr_kicad repository on GitHub, at the commit this page was made from: the board is 21xt/01-accessory/accessory_v2/accessory_v2.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Accessory v2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask BlueJayRacing before reusing the design.