Pulse Fixed Timer
About the Pulse Fixed Timer PCB
Pulse Fixed Timer is an open source PCB design by synthesissolutions, published on GitHub. It is a 4-layer board measuring 27.9 × 43.2 mm, with 40 components from 18 distinct parts.
Other key parts include the C105643, C575551 and C19631717. By type, the board carries 23 capacitors, 11 resistors, 3 ICs, 1 transistor, 1 connector and 1 fuse.
Main components on the Pulse Fixed Timer
Pulse Fixed Timer bill of materials (BOM)
40 components, 18 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C105643 NE555PWR | TSSOP-8_4.4x3mm_P0.65mm | U1 |
| 1 | C575551 DRV8876PWPR | HTSSOP-16-1EP_4.4x5mm_P0.65mm_EP3.4x5mm_Mask2.46x2.31mm | U2 |
| 1 | C19631717 MAX809R | SOT-23 | U3 |
| 1 | C10487 SI2301CDS-T1-GE3 | SOT-23 | Q1 |
| 1 | Load | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J3 |
| 1 | C22374902 1.5A | Fuse_1210_3225Metric | F2 |
| 11 | C307331 100nF | C_0402_1005Metric | C1, C2, C3, C4, C8, C12, C16, C18 +3 |
| 2 | C45783 22uF | C_0805_2012Metric | C5, C13 |
| 3 | C52923 1uF | C_0402_1005Metric | C6, C9, C14 |
| 4 | C15195 10nF | C_0402_1005Metric | C7, C10, C11, C17 |
| 1 | C96446 10uF | C_0603_1608Metric | C15 |
| 1 | C1532 22nF | C_0402_1005Metric | C20 |
| 1 | C3001213 47uF | CP_Elec_6.3x5.4 | C23 |
| 2 | C11702 1k | R_0402_1005Metric | R1, R12 |
| 5 | C25741 100k | R_0402_1005Metric | R2, R3, R4, R5, R6 |
| 2 | C23192 500k | R_0603_1608Metric | R7, R8 |
| 1 | C25765 20k | R_0402_1005Metric | R10 |
| 1 | C25771 27k | R_0402_1005Metric | R11 |
Pulse Fixed Timer design files
The KiCad project lives in the synthesissolutions/geeksforkids repository on GitHub; these links point at the commit this page was built from.
Pulse Fixed Timer: common questions
How big is the Pulse Fixed Timer PCB?
The Pulse Fixed Timer measures 27.9 × 43.2 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Pulse Fixed Timer?
40 components, from 18 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Pulse Fixed Timer design files?
From the synthesissolutions/geeksforkids repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Pulse Fixed Timer design in my own project?
The repository has no license, so all rights stay with synthesissolutions. Use it as a reference, and ask the author before reusing the design.
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