4 layers82.3 × 55.3 mm
2 layers97 × 150.9 mm
ActiveLoadPCB
try-except/TitoSync- Size
- 97 × 150.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 59
- Nets
- 33
- Pads
- 139
- Tracks, vias
- 282, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 4 Sep 2025
- Updated
- 3 Dec 2025
Overview
ActiveLoadPCB is an open-source printed circuit board by try-except, from the try-except/TitoSync repository on GitHub. It is a 2-layer board of 97 × 150.9 mm with 59 parts on 33 nets, routed with 282 tracks and 0 vias.
It is built around the LM358, 2N2222A and TIP142, with the BZX85C3V3 among its other parts. Its parts include 29 resistors, 12 transistors, 7 capacitors, 7 connectors and 2 diodes.
Main components
4
LM358
SOP-8-18V~18V 0℃~+70℃ 1.2MHz 10nA 2 24mA 3V~36V 500uA 50nA 5mV 80dB Built-in compensation SOP-8 Operational Amplifier ROHSMSKSEMIOperational Amplifier
2N2222A
TO-92-55℃~+150℃ 1 NPN 100MHz 100nA 400 40V 5V 600mA 600mV 625mW NPN TO-92 Bipolar (BJT) ROHSSlkorBipolar (BJT)
TIP142
TO-247AC-31000 100V 10A 125W 1mA 3V 3V 5V NPN TO-247AC-3 Darlington Transistors ROHSSTMicroelectronicsDarlington Transistors
BZX85C3V3
DO-41Zener DiodeonsemiUncategorised
Parts
59| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 0.5 | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R13, R15, R17, R18, R20, R21, R23, R24, R26, R27 |
| 7 | 2N2222A | Package_TO_SOT_THT:TO-92L_Inline_Wide | Q1, Q2, Q4, Q6, Q8, Q10, Q12 |
| 6 | 220 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R7, R10, R16, R19, R22, R25 |
| 5 | TIP142 | Package_TO_SOT_THT:TO-247-3_Vertical | Q3, Q5, Q7, Q9, Q11 |
| 4 | 470 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R9 |
| 3 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1, J2, J6 |
| 2 | 100n | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C4, C7 |
| 2 | 100u | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C2, C5 |
| 2 | 10u | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C3, C6 |
| 2 | 3.3k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4, R5 |
| 2 | 4.7 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R12, R14 |
| 1 | 100k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R29 |
| 1 | 10k | Kicad_TitoSync_Footprints:Potentiometer | RV1 |
| 1 | 1n | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C1 |
| 1 | 2.2k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R8 |
| 1 | 33 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R11 |
| 1 | 360 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R28 |
| 1 | 39k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R6 |
| 1 | BZX85C3V3 | Diode_THT:D_T-1_P5.08mm_Horizontal | D3 |
| 1 | LED | LED_THT:LED_D3.0mm | D2 |
| 1 | LM358 | Package_DIP:DIP-8_W7.62mm_Socket | U1 |
| 1 | LOAD+ | MountingHole:MountingHole_4.3mm_M4_DIN965_Pad | J7 |
| 1 | LOAD- | MountingHole:MountingHole_4.3mm_M4_DIN965_Pad | J8 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type055_RT01502HDWU_1x02_P5.00mm_Horizontal | J4 |
| 1 | Screw_Terminal_01x03 | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type055_RT01503HDWU_1x03_P5.00mm_Horizontal | J3 |
Questions
How big is the ActiveLoadPCB PCB?
It measures 97 × 150.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ActiveLoadPCB use?
59 parts, built around the LM358, 2N2222A, TIP142 and BZX85C3V3. 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 ActiveLoadPCB KiCad files?
From the try-except/TitoSync repository on GitHub, at the commit this page was made from: the board is ActiveLoad/ActiveLoadPCB/ActiveLoadPCB.kicad_pcb and its schematic ActiveLoad/ActiveLoadPCB/ActiveLoadPCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ActiveLoadPCB design in my own project?
Its repository states no licence, so its author keeps all rights: ask try-except before reusing the design.
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