2 layers25.8 × 36.3 mm
2 layers32 × 32 mm
Candel24h v1
abitwitch/candle_24h- Size
- 32 × 32 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 15
- Nets
- 22
- Pads
- 52
- Tracks, vias
- 109, 16
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 29 May 2024
- Updated
- 31 Jul 2024
Overview
Candel24h v1 is an open-source printed circuit board by abitwitch, from the abitwitch/candle_24h repository on GitHub. It is a 2-layer board of 32 × 32 mm with 15 parts on 22 nets, routed with 109 tracks and 16 vias.
It is built around the 74AHC1G4210GWH and MMBT2222A-TP.
Main components
2
74AHC1G4210GWH
TSSOP-5-1.3mm-40℃~+125℃ 1 10 165MHz 17ns 2V~5.5V Divide-by-2 Falling Edge Up Counter TSSOP-5-1.3mm Counters, Dividers ROHSNexperiaCounters, Dividers
MMBT2222A-TP
SOT-23-55℃~+150℃ 1 NPN 100 10nA 1V 300MHz 350mW 40V 600mA 6V NPN SOT-23 Bipolar (BJT) ROHSMicro Commercial ComponentsBipolar (BJT)
README
README.mdcandle_24h
Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 74AHC1G4210 | Package_TO_SOT_SMD:SOT-353_SC-70-5 | div1, div2, div3 |
| 2 | MMBT2222A-TP | CustomComponents:MTR_MMBT2222A-TP_MCE | TR1, TR2 |
| 1 | 22s CLK | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | 22s |
| 1 | 24h CLK | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | 24h |
| 1 | 5ms CLK | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | 5ms |
| 1 | Battery | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | BAT |
| 1 | LED | LED_THT:LED_D3.0mm_Horizontal_O3.81mm_Z10.0mm | LED |
| 1 | LED | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | LEDsw |
| 1 | R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical | R1 |
| 1 | SPDTswitch | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | SPDT |
| 1 | TC7W74FK_LF | CustomComponents:US8_TOS | flipflop |
| 1 | ~ | CustomComponents:510ACA000383BAGR | CLK |
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Questions
How big is the Candel24h v1 PCB?
It measures 32 × 32 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Candel24h v1 use?
15 parts, built around the 74AHC1G4210GWH and MMBT2222A-TP. 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 Candel24h v1 KiCad files?
From the abitwitch/candle_24h repository on GitHub, at the commit this page was made from: the board is candel24h_v1/candel24h_v1.kicad_pcb and its schematic candel24h_v1/candel24h_v1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Candel24h v1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask abitwitch before reusing the design.