2 layers140.1 × 50 mm
2 layers90.9 × 33.5 mm
Caiman
Teusner/Caiman- Size
- 90.9 × 33.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 134
- Nets
- 149
- Pads
- 510
- Tracks, vias
- 675, 214
- Pours
- 260
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 12 May 2026
- Updated
- 1 Jun 2026
Overview
Caiman is an open-source printed circuit board by Teusner, from the Teusner/Caiman repository on GitHub. It is a 2-layer board of 90.9 × 33.5 mm with 134 parts on 149 nets, routed with 675 tracks and 214 vias.
It is built around the SN74LV1T34DBV, NRF24L01P-R and AP63203WU, with the AP63205WU, LSM6DSO and SK6812 among its other parts. Its parts include 51 capacitors, 32 resistors, 15 connectors, 10 ICs and 5 inductors. It belongs with the STM32 boards of this library.
Main components
9
SN74LV1T34DBV
SOT-23-5-40℃~+125℃ 1 1 1.6V~5.5V 10uA 5.5ns@5V,15pF 74LV 8mA 8mA Level shifting Push-pull Unidirectional SOT-23-5 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers
NRF24L01P-R
QFN-20-EP(4x4)-40℃~+85℃ -82dBm 0dBm 1.9V~3.6V 11.3mA 13.5mA 2.4GHz 2.4GHz~2.525GHz 2Mbps ISM Power-on reset function、Supports RSSI function、CRC check function、Automatic response function、Automatic retransmission function SPI transceiver QFN-20-EP(4x4) RF Transceiver ICs ROHSNordic SemiconRF Transceiver ICs
AP63203WU
TSOT-23-6-40℃~+85℃@(TA) 1 1.1MHz 22uA 2A 3.3V 3.8V~32V Buck Built-in Fixed Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting、Hiccup current limiting、EMI optimization (spread spectrum) Step-down type Yes TSOT-23-6 DC-DC Converters ROHSDiodes IncorporatedDC-DC ConvertersAP63205WU
TSOT-23-6-40℃~+85℃@(TA) 1 1.1MHz 22uA 2A 3.8V~32V 5V Buck Built-in Fixed Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting、Hiccup current limiting、EMI optimization (spread spectrum) Step-down type Yes TSOT-23-6 DC-DC Converters ROHSDiodes IncorporatedDC-DC Converters
LSM6DSO
LGA-14(2.5x3)-40℃~+85℃ 1.71V~3.6V 9KB Accelerometer Gyroscope SPI、I2C X,Y,Z X,Y,Z ±16g ±2000dps LGA-14(2.5x3) Accelerometers ROHSSTMicroelectronicsAccelerometers
SK6812
SMD-4P,5.4x5mm-40℃~+85℃ 0.6mA 1.6mm 120° 160mcd~320mcd 1kHz 2000V 280mcd~515mcd 3.7V~5.5V 460nm~470nm 520nm~530nm 620nm~625nm 800Kbit/s 815mcd~1275mcd Built-in power-on reset circuit Semi-transparent lens SMD-4P,5.4x5mm RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)
AON6262E
PDFN-8(5.2x5.6)-55℃~+150℃ 1 N-channel 1.65V 1.65nF 30nC@10V 40A 52pF 6.2W 6.2mΩ 60V PDFN-8(5.2x5.6) MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
MMSZ5245
SOD-1231 Independent 100nA@11V 15V 16Ω 500mW 600Ω SOD-123 Zener Diodes ROHSonsemiZener Diodes
SMBJ33CA
DO-214AA(SMB)ESD And Surge Protection (TVS/ESD)hongjiacheng
README
README.mdCaiman
Electronics
Parts
134| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 100nf | Capacitor_SMD:C_0402_1005Metric | C12, C13, C14, C15, C16, C17, C18, C19, C20, C23, C27, C31, C32, C40, C43 |
| 8 | 10k | Resistor_SMD:R_0402_1005Metric | R8, R9, R10, R11, R12, R14, R15, R16 |
| 6 | 22ohm | Resistor_SMD:R_0402_1005Metric | R20, R22, R24, R25, R27, R28 |
| 4 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C47, C49, C50, C51 |
| 4 | 2.2k | Resistor_SMD:R_0402_1005Metric | R26, R29, R30, R32 |
| 4 | 22uF, 16V | Capacitor_SMD:C_0603_1608Metric | C4, C5, C7, C8 |
| 4 | Conn_01x04_Pin | Connector_JST:JST_GH_BM04B-GHS-TBT_1x04-1MP_P1.25mm_Vertical | J3, J10, J11, J12 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_4.3mm_M4_ISO7380_Pad_TopBottom | H1, H2, H3, H4 |
| 3 | , , | ||
| 3 | 100k | Resistor_SMD:R_0603_1608Metric | R1, R4, R6 |
| 3 | 22 ohm | Resistor_SMD:R_0402_1005Metric | R17, R18, R19 |
| 3 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1, J4, J15 |
| 3 | SK6812 | LED_SMD:LED_SK6812_PLCC4_5.0x5.0mm_P3.2mm | D2, D3, D4 |
| 2 | 0.1uF, 50V | Capacitor_SMD:C_0805_2012Metric | C9, C10 |
| 2 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric | R3, R7 |
| 2 | 10uf | Capacitor_SMD:C_0402_1005Metric | C30, C44 |
| 2 | 18pF | Capacitor_SMD:C_0402_1005Metric | C24, C28 |
| 2 | 2.2uF | Capacitor_SMD:C_0402_1005Metric | C42, C45 |
| 2 | 22pF | Capacitor_SMD:C_0402_1005Metric | C39, C46 |
| 2 | Conn_01x04_Pin | Connector_JST:JST_GH_BM06B-GHS-TBT_1x06-1MP_P1.25mm_Vertical | J2, J5 |
| 1 | 1.5pF | Capacitor_SMD:C_0402_1005Metric | C38 |
| 1 | 100nF | Capacitor_SMD:C_0402_1005Metric | C26 |
| 1 | 10nf | Capacitor_SMD:C_0402_1005Metric | C33 |
| 1 | 10uF, 16v | Capacitor_SMD:C_0805_2012Metric | C6 |
| 1 | 10uF, 50v | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 15k | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 16MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y2 |
| 1 | 1M | Resistor_SMD:R_0402_1005Metric | R23 |
| 1 | 1nf | Capacitor_SMD:C_0402_1005Metric | C34 |
| 1 | 1pF | Capacitor_SMD:C_0402_1005Metric | C37 |
| 1 | 1uF | Capacitor_SMD:C_0402_1005Metric | C21 |
| 1 | 2.2nF | Capacitor_SMD:C_0402_1005Metric | C35 |
| 1 | 2.7nH | Inductor_SMD:L_0402_1005Metric | L3 |
| 1 | 220nf | Capacitor_SMD:C_0402_1005Metric | C29 |
| 1 | 22k | Resistor_SMD:R_0402_1005Metric | R21 |
| 1 | 27k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 3.9nH | Inductor_SMD:L_0402_1005Metric | L5 |
| 1 | 3.9uH | PCM_Inductor_SMD_AKL:L_Wuerth_MAPI-4020 | L2 |
| 1 | 330 | Resistor_SMD:R_0603_1608Metric | R31 |
| 1 | 33nf | Capacitor_SMD:C_0402_1005Metric | C41 |
| 1 | 4.7pF | Capacitor_SMD:C_0402_1005Metric | C36 |
| 1 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C25 |
| 1 | 4.7uH | PCM_Inductor_SMD_AKL:L_Wuerth_MAPI-4020 | L1 |
| 1 | 4.7uf | Capacitor_SMD:C_0402_1005Metric | C22 |
| 1 | 470uF | PCM_Capacitor_SMD_AKL:CP_Elec_8x10 | C48 |
| 1 | 47k | Resistor_SMD:R_0402_1005Metric | R13 |
| 1 | 47uF, 50v | PCM_Capacitor_SMD_AKL:CP_Elec_8x10 | C11 |
| 1 | 50 ohm | Connector_Coaxial:U.FL_Hirose_U.FL-R-SMT-1_Vertical | J14 |
| 1 | 8.2nH | Inductor_SMD:L_0402_1005Metric | L4 |
| 1 | 8MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | AON6262E | Package_TO_SOT_SMD:TDSON-8-1 | Q2 |
| 1 | AP63203WU | Package_TO_SOT_SMD:TSOT-23-6 | U2 |
| 1 | AP63205WU | Package_TO_SOT_SMD:TSOT-23-6 | U1 |
| 1 | Conn_01x02_Pin | Connector_AMASS:AMASS_XT30UPB-M_1x02_P5.0mm_Vertical | J7 |
| 1 | Conn_01x02_Pin | Connector_AMASS:AMASS_XT60-M_1x02_P7.20mm_Vertical | J8 |
| 1 | Conn_01x02_Pin | Connector_AMASS:AMASS_XT60-F_1x02_P7.20mm_Vertical | J9 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J6 |
| 1 | LIS2MDLTR | Package_LGA:LGA-12_2x2mm_P0.5mm | U6 |
| 1 | LM74700 | Package_TO_SOT_SMD:SOT-23-6 | U4 |
| 1 | LPS22HBTR | Package_LGA:ST_HLGA-10_2x2mm_P0.5mm_LayoutBorder3x2y | U5 |
| 1 | LSM6DSO | Package_LGA:LGA-14_3x2.5mm_P0.5mm_LayoutBorder3x4y | U8 |
| 1 | MMSZ5245 | PCM_Diode_SMD_AKL:D_SOD-123F_Zener | DZ1 |
| 1 | Micro_SD_Card | Connector_Card:microSD_HC_Hirose_DM3AT-SF-PEJM5 | J13 |
| 1 | Q_PMOS-E_Generic_SSSGD | Package_SO:PowerPAK_SO-8L_Single | Q1 |
| 1 | SMBJ33CA | PCM_Diode_SMD_Handsoldering_AKL:D_SMB_TVS | D1 |
| 1 | SN74LV1T34DBV | Package_TO_SOT_SMD:SOT-23-5 | U10 |
| 1 | STM32F765VITx | Package_QFP:LQFP-100_14x14mm_P0.5mm | U7 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1 |
| 1 | US1881 | Package_TO_SOT_THT:TO-92 | U3 |
| 1 | nRF24L01P | Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm | U9 |
The 130 most common of 134 parts.
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Questions
How big is the Caiman PCB?
It measures 90.9 × 33.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Caiman use?
134 parts, built around the SN74LV1T34DBV, NRF24L01P-R, AP63203WU and AP63205WU. 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 Caiman KiCad files?
From the Teusner/Caiman repository on GitHub, at the commit this page was made from: the board is electronics/caiman.kicad_pcb and its schematic electronics/caiman.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Caiman design in my own project?
Its repository states no licence, so its author keeps all rights: ask Teusner before reusing the design.