2 layers100 × 50 mm
2 layers25.4 × 25.4 mm
Indicator
vrnambur/IndicatorA Custom PCB for 9V Battery Voltage Indicator
- Size
- 25.4 × 25.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 22
- Pads
- 68
- Tracks, vias
- 171, 21
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 25 Aug 2015
- Updated
- 25 Aug 2015
Overview
Indicator is an open-source printed circuit board by vrnambur, from the vrnambur/Indicator repository on GitHub. It is a 2-layer board of 25.4 × 25.4 mm with 28 parts on 22 nets, routed with 171 tracks and 21 vias.
It is built around the LM2903 and 2SC1815. Its parts include 13 resistors, 8 diodes, 5 transistors, 1 IC and 1 connector.
Main components
2Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 1k | Resistors_SMD:R_0201 | R2, R4, R7, R9, R12 |
| 3 | 100k | Resistors_SMD:R_0201 | R3, R8, R11 |
| 3 | 2SC1815 | Housings_TO-92:TO-92_Inline_Narrow_Oval | Q1, Q3, Q5 |
| 3 | LED | LEDs:LED-0603 | D3, D6, D8 |
| 2 | 2 | Resistors_SMD:R_0201 | R1, R6 |
| 2 | 2SA1016 | Housings_TO-92:TO-92_Inline_Narrow_Oval | Q2, Q4 |
| 1 | 1V | Diodes_SMD:SOD-523 | D2 |
| 1 | 200 | Resistors_SMD:R_0201 | R10 |
| 1 | 3.3V | Diodes_SMD:SOD-523 | D5 |
| 1 | 450 | Resistors_SMD:R_0201 | R13 |
| 1 | 5V | Diodes_SMD:SOD-523 | D1 |
| 1 | 6V | Diodes_SMD:SOD-523 | D7 |
| 1 | 7V | Diodes_SMD:SOD-523 | D4 |
| 1 | 90 | Resistors_SMD:R_0201 | R5 |
| 1 | BARREL_JACK | Connect:BARREL_JACK | CON1 |
| 1 | LM2903 | SMD_Packages:SOIC-8-N | U1 |
Questions
How big is the Indicator PCB?
It measures 25.4 × 25.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Indicator use?
28 parts, built around the LM2903 and 2SC1815. 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 Indicator KiCad files?
From the vrnambur/Indicator repository on GitHub, at the commit this page was made from: the board is Indicator.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Indicator design in my own project?
Its repository states no licence, so its author keeps all rights: ask vrnambur before reusing the design.
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