4 layers69.9 × 56.3 mm
Jayne
Stab-Rabbit-coding/SecureControllers
unmanned system controllers with security baked in
63 partsCC-BY-4.0
4 layers90 × 65 mm
unmanned system controllers with security baked in
- Size
- 90 × 65 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 67
- Nets
- 50
- Pads
- 270
- Tracks, vias
- 0, 0
- Pours
- 2
- Routed
- Not yet
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 17 Jul 2026
- Updated
- 18 Oct 2026
Overview
Kaylee is an open-source printed circuit board by Stab-Rabbit-coding, from the Stab-Rabbit-coding/SecureControllers repository on GitHub, published under the CC-BY-4.0 licence. It is a 4-layer board of 90 × 65 mm with 67 parts on 50 nets.
It is built around the TPS54620RGYT, TPS54540DDAR and MBRD1045CT, with the PRTR5V0U2X, SMBJ33CA and XT60PW-F among its other parts. Its parts include 3 capacitors, 1 diode and 1 fuse.
Main components
6
TPS54620RGYT
VQFN-14-EP(3.5x3.5)-40℃~+150℃@(TJ) 1 1.6MHz 4.5V~17V 600uA 6A 800mV~15V Adjustable Buck Buck Built-in Yes VQFN-14-EP(3.5x3.5) DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersTPS54540DDAR
SOIC-8-EP-40℃~+150℃@(TJ) 1 146uA 2.5MHz 4.5V~42V 5A 800mV~41.1V Adjustable Buck Buck Built-in No SOIC-8-EP DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
MBRD1045CT
TO-2521 Pair Common Cathode 100uA@45V 10A 150A 45V 600mV@5A TO-252 Schottky Diodes ROHShongjiachengSchottky Diodes
PRTR5V0U2X
SOT-143-55℃~+125℃ 0.3pF、0.8pF 100W 10V、15V 5V 6.5V 6A 80nA ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Three channels Unidirectional SOT-143 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
SMBJ33CA
DO-214AA(SMB)ESD And Surge Protection (TVS/ESD)hongjiacheng
XT60PW-F
-Horizontal plug Yellow - Power connector / plug connectorChangzhou Amass ElecPlug
Parts
67| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 100uF/50V | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C_BEC_SV_IN, C_BEC_SV_OUT, C_BEC1_IN, C_BEC1_OUT, C_BEC2_IN, C_BEC2_OUT |
| 5 | 1mOhm_Kelvin_2512 | FlightEngineer:R_Shunt_CSS2H_2512K | RS_1, RS_2, RS_3, RS_4, RS_MAIN |
| 4 | FuseHolder_Mini_40A | Fuse:Fuseholder_Blade_Mini_Keystone_3568 | F_ESC1, F_ESC2, F_ESC3, F_ESC4 |
| 4 | M3 | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 100k | Resistor_SMD:R_0402_1005Metric | R_FB1_1, R_FB2_1, R_FB6_1 |
| 3 | WE-742792612 | Capacitor_SMD:C_0805_2012Metric | FB_5V1, FB_5V2, FB_6V |
| 3 | WE-744314100_10uH | Inductor_SMD:L_1210_3225Metric | L_BEC1, L_BEC2, L_BEC3 |
| 2 | 22.1k | Resistor_SMD:R_0402_1005Metric | R_FB1_2, R_FB2_2 |
| 2 | 220uF/35V | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C1, C2 |
| 2 | 4.7nF/250V_Y2 | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C_Y1, C_Y2 |
| 2 | M3_Lug | MountingHole:MountingHole_3.2mm_M3_Pad_Via | J_CHASSIS, J_PGND_BATT |
| 2 | MBRD1045CT | Package_TO_SOT_SMD:TO-252-3_TabPin2 | D_OR1, D_OR2 |
| 2 | TPS54620RGYT | Package_DFN_QFN:Texas_RGP0020D_VQFN-20-1EP_4x4mm_P0.5mm_EP2.7x2.7mm | U_BEC_5V_1, U_BEC_5V_2 |
| 2 | WE-SL5_7440640500 | FlightEngineer:CMC_WE-SL5_7440640500 | CM1, CM2 |
| 1 | 0R | Resistor_SMD:R_0402_1005Metric | R_CHGND |
| 1 | 100nF/50V | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric | R_DSG_G |
| 1 | 10uF/50V | Inductor_SMD:L_1210_3225Metric | C_DM1 |
| 1 | 2.2k | Resistor_SMD:R_0402_1005Metric | R_ALERT |
| 1 | 30.1k | Resistor_SMD:R_0402_1005Metric | R_FB6_2 |
| 1 | AON6556 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | Q_BATT_DSG |
| 1 | FuseHolder_MAXI_150A | FlightEngineer:FuseHolder_MAXI_PCB | F1 |
| 1 | INA226_0x40 | Package_SO:MSOP-10_3x3mm_P0.5mm | U_IS1 |
| 1 | INA226_0x41 | Package_SO:MSOP-10_3x3mm_P0.5mm | U_IS2 |
| 1 | INA226_0x42 | Package_SO:MSOP-10_3x3mm_P0.5mm | U_IS3 |
| 1 | INA226_0x43 | Package_SO:MSOP-10_3x3mm_P0.5mm | U_IS4 |
| 1 | INA226_0x44 | Package_SO:MSOP-10_3x3mm_P0.5mm | U_IS_MAIN |
| 1 | JST-GH_2P_ALERT | Connector_JST:JST_GH_BM02B-GHS-TBT_1x02-1MP_P1.25mm_Vertical | J_ALERT |
| 1 | JST-GH_4P_I2C | Connector_JST:JST_GH_BM04B-GHS-TBT_1x04-1MP_P1.25mm_Vertical | J_I2C |
| 1 | NanoFit-4P_5V | Connector_Molex:Molex_Nano-Fit_105309-xx04_1x04_P2.50mm_Vertical | J_5V |
| 1 | NanoFit-4P_6V | Connector_Molex:Molex_Nano-Fit_105309-xx04_1x04_P2.50mm_Vertical | J_6V |
| 1 | PRTR5V0U2X | Package_TO_SOT_SMD:SOT-363_SC-70-6 | D_I2C |
| 1 | SMBJ33CA | Diode_SMD:D_SMB | D1 |
| 1 | TPS54540DDAR | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U_BEC_6V |
| 1 | XT30PW-F_ESC1 | Connector_AMASS:AMASS_XT30PW-F_1x02_P2.50mm_Horizontal | J_ESC1 |
| 1 | XT30PW-F_ESC2 | Connector_AMASS:AMASS_XT30PW-F_1x02_P2.50mm_Horizontal | J_ESC2 |
| 1 | XT30PW-F_ESC3 | Connector_AMASS:AMASS_XT30PW-F_1x02_P2.50mm_Horizontal | J_ESC3 |
| 1 | XT30PW-F_ESC4 | Connector_AMASS:AMASS_XT30PW-F_1x02_P2.50mm_Horizontal | J_ESC4 |
| 1 | XT60PW-F | Connector_AMASS:AMASS_XT60PW-F_1x02_P7.20mm_Horizontal | J_BATT |
Questions
How big is the Kaylee PCB?
It measures 90 × 65 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Kaylee use?
67 parts, built around the TPS54620RGYT, TPS54540DDAR, MBRD1045CT and PRTR5V0U2X. 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 Kaylee KiCad files?
From the Stab-Rabbit-coding/SecureControllers repository on GitHub, at the commit this page was made from: the board is kicad/Kaylee/kicads/Kaylee.kicad_pcb and its schematic kicad/ENC-NACELLE-1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Kaylee design in my own project?
Its repository publishes it under the CC-BY-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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