2 layers152.4 × 76.2 mm
Transistor
apxco/Kicad
Zum Testen von einigen Transistorschaltungen für Verstärker. Noch nicht fertig.
119 parts
2 layers85.7 × 54 mm
Breadboard psu
jammycakes/breadboard-psuRail splitter design for BusBoard breadboards
- Size
- 85.7 × 54 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 44
- Nets
- 24
- Pads
- 109
- Tracks, vias
- 206, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 11 Sep 2026
- Updated
- 11 Sep 2026
Overview
Breadboard psu is an open-source printed circuit board by jammycakes, from the jammycakes/breadboard-psu repository on GitHub. It is a 2-layer board of 85.7 × 54 mm with 44 parts on 24 nets, routed with 206 tracks and 0 vias.
It is built around the BC337, TIP41 and TIP42. Its parts include 13 resistors, 8 connectors, 6 diodes, 4 capacitors and 4 transistors. It belongs with the power boards of this library.
Main components
3Parts
44| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 1N4148 | breadboard-psu:D_T-1_P5.08mm_Horizontal | D1, D2, D3, D4 |
| 3 | TestPoint_Small | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | TP1, TP2, TP3 |
| 2 | 0R1 | Resistor_THT:R_Axial_DIN0411_L9.9mm_D3.6mm_P12.70mm_Horizontal | R12, R13 |
| 2 | 0R33 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R5, R6 |
| 2 | 100R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R9, R11 |
| 2 | 10K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2 |
| 2 | 22K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R8, R10 |
| 2 | 22u | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C3, C4 |
| 2 | 68R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R3, R4 |
| 2 | BC337 | Package_TO_SOT_THT:TO-92_Inline | Q3, Q4 |
| 2 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3, J4 |
| 2 | Heatsink | Heatsink:Heatsink_AAVID_Extruded_531002B02500G_34.9x12.7mm_H25.4mm | HS1, HS2 |
| 2 | LED | LED_THT:LED_D3.0mm | LED1, LED2 |
| 2 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2 |
| 1 | 100n | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C2 |
| 1 | 22R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R7 |
| 1 | 47u | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C1 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Horizontal | J7 |
| 1 | Conn_01x04_Socket | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Horizontal | J8 |
| 1 | Conn_01x07_Pin | Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Horizontal | J5 |
| 1 | Conn_01x07_Socket | Connector_PinSocket_2.54mm:PinSocket_1x07_P2.54mm_Horizontal | J6 |
| 1 | OPA197xD | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | IC1 |
| 1 | SW_DPDT_x2 | breadboard-psu:SW_E-Switch_EG1271_SPDT | SW1 |
| 1 | TIP41 | Package_TO_SOT_THT:TO-220-3_Vertical | Q1 |
| 1 | TIP42 | Package_TO_SOT_THT:TO-220-3_Vertical | Q2 |
| 1 | V+ | Connector:Banana_Jack_1Pin | J1 |
| 1 | V- | Connector:Banana_Jack_1Pin | J2 |
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Questions
How big is the Breadboard psu PCB?
It measures 85.7 × 54 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Breadboard psu use?
44 parts, built around the BC337, TIP41 and TIP42. 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 Breadboard psu KiCad files?
From the jammycakes/breadboard-psu repository on GitHub, at the commit this page was made from: the board is splitter/breadboard-psu.kicad_pcb and its schematic splitter/breadboard-psu.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Breadboard psu design in my own project?
Its repository states no licence, so its author keeps all rights: ask jammycakes before reusing the design.