Comparator
About the Comparator PCB
Comparator is an open source PCB design by richardjmarini, published on GitHub under the GPL-3.0 license. It is a board, with 113 components from 22 distinct parts.
By type, the board carries 34 diodes, 32 transistors, 18 resistors, 12 capacitors, 9 connectors and 2 fuses.
From the project
Discrete Comparator
Comparator bill of materials (BOM)
113 components, 22 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 22 | BC557 | TO-92_Inline | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +14 |
| 10 | BC547 | TO-92_Inline | Q10, Q12, Q13, Q14, Q15, Q26, Q28, Q29 +2 |
| 1 | 1761681-3 | TE_1761681-3 | J1 |
| 2 | Non-Inverting Input | Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J2, J7 |
| 2 | Inverting Input | Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J3, J6 |
| 2 | Output | Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J4, J8 |
| 2 | InvertedOutput | Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J5, J9 |
| 2 | Polyfuse | FUSRB510W81L1358T310H1980 | F1, F2 |
| 2 | 10k | Potentiometer_TT_P0915N | RV1, RV3 |
| 2 | 100k | Potentiometer_TT_P0915N | RV2, RV4 |
| 2 | 1N5394B | D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2 |
| 26 | 1N4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D3, D4, D5, D6, D7, D8, D9, D10 +18 |
| 2 | BAT46 | D19, D20 | |
| 4 | LED_Dual_Bidirectional | D31, D32, D33, D34 | |
| 2 | FerriteBead | FB1, FB2 | |
| 2 | 10uf | CP_Radial_D10.0mm_P2.50mm | C1, C2 |
| 4 | 0.1uf | C_Disc_D5.0mm_W2.5mm_P2.50mm | C3, C4, C7, C8 |
| 2 | 1n | C_Rect_L9.0mm_W2.5mm_P7.50mm_MKT | C5, C6 |
| 4 | 1uf | C9, C10, C11, C12 | |
| 10 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R5, R7, R8, R9, R10, R11, R12 +2 |
Show 2 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 6 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R3, R15, R16, R17, R18 |
| 2 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4, R6 |
Comparator design files
The KiCad project lives in the richardjmarini/Comparator repository on GitHub; these links point at the commit this page was built from.
- SchematicMainBoard/MainBoard.kicad_sch
Comparator: common questions
How many components are on the Comparator?
113 components, from 22 distinct parts. The full bill of materials is listed on this page.
Where can I download the Comparator design files?
From the richardjmarini/Comparator repository on GitHub, which has the schematic; the links under Design files point to each one.
Can I use the Comparator design in my own project?
Yes, under the terms of its GPL-3.0 license, which richardjmarini chose for the repository.