2 layers89.2 × 30.3 mm
2 layers71 × 39 mm
TDA7294
jaka/electronicsschematics and PCBs
- Size
- 71 × 39 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 29
- Nets
- 20
- Pads
- 83
- Tracks, vias
- 147, 0
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 9 Jun 2026
- Updated
- 27 Sep 2026
Overview
TDA7294 is an open-source printed circuit board by jaka, from the jaka/electronics repository on GitHub. It is a 2-layer board of 71 × 39 mm with 29 parts on 20 nets, routed with 147 tracks and 0 vias.
It is built around the TDA7294V. Its parts include 10 capacitors, 8 resistors, 3 crystals, 1 IC and 1 diode.
Main components
1README
Flashing Lights Triple Duo/README.mdFlashing Lights Triple Duo
This circuit consists of two 555 timers configured at different frequencies. These frequencies are selected so that red LED’s and blue LED’s alternatively flashes. Moreover each group (red or blue) flashes aproximately three times before colour is switched, similar to american police strobe lights.
- EDA: Kicad 7.0.11
Parts
29| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_4.3mm_M4 | H1, H2, H3, H4 |
| 3 | 220n | Capacitor_THT:C_Rect_L7.0mm_W3.5mm_P2.50mm_P5.00mm | C1, C2, C10 |
| 2 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5, R6 |
| 2 | 10u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C5, C6 |
| 2 | 2200u | Capacitor_THT:CP_Radial_D10.0mm_P2.50mm_P5.00mm | C3, C4 |
| 2 | 22k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2 |
| 2 | 22u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C8, C9 |
| 1 | 10u | Capacitor_THT:C_Rect_L7.0mm_W3.5mm_P2.50mm_P5.00mm | C7 |
| 1 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1 |
| 1 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 1 | 33k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7 |
| 1 | 4R7 | Resistor_THT:R_Axial_DIN0414_L11.9mm_D4.5mm_P5.08mm_Vertical | R8 |
| 1 | 680 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4 |
| 1 | IN | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | X1 |
| 1 | J | Wire:Wire4mm | NT2 |
| 1 | J | Wire:Wire13mm | NT1 |
| 1 | MUTE/SDBY | Connector_JST:JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | X3 |
| 1 | OUT/PWR | Connector_Phoenix_MC:PhoenixContact_MC_1,5_5-G-3.81_1x05_P3.81mm_Horizontal | X2 |
| 1 | TDA7294 | Package_TO_SOT_THT:TO-220-15_P2.54x2.54mm_StaggerOdd_Lead4.58mm_Vertical | U1 |
Questions
How big is the TDA7294 PCB?
It measures 71 × 39 mm and has 2 copper layers, 1.6 mm thick.
What parts does the TDA7294 use?
29 parts, built around the TDA7294V. 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 TDA7294 KiCad files?
From the jaka/electronics repository on GitHub, at the commit this page was made from: the board is Amplifier TDA7294/TDA7294.kicad_pcb and its schematic Amplifier TDA2030/TDA2030.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the TDA7294 design in my own project?
Its repository states no licence, so its author keeps all rights: ask jaka before reusing the design.
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