Blink timer
About the Blink timer PCB
Blink timer is an open source PCB design by sjm42, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 44 × 21 mm, with 14 components from 12 distinct parts.
Other key parts include the TLE2426XD. By type, the board carries 6 resistors, 3 diodes, 2 capacitors, 1 IC, 1 transistor and 1 connector.
From the project
Various electronics projects
Main components on the Blink timer
Blink timer bill of materials (BOM)
14 components, 12 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TLE2426XD LM393 | SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | IRF4905 | TO-263-3_TabPin2 | Q1 |
| 1 | Conn_01x04_Socket | Altech_AK100_1x04_P5.00mm | J1 |
| 1 | SS310 1N4148 | D_MiniMELF | D1 |
| 1 | 1N4148 | D_MiniMELF | D2 |
| 1 | SS310 | D_SMA | D3 |
| 2 | 10µ | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2 |
| 1 | 3.3K 220k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 3.3K 4.7k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2 |
| 2 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R5 |
| 1 | 4.7k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 47k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6 |
Blink timer design files
The KiCad project lives in the sjm42/electronics repository on GitHub; these links point at the commit this page was built from.
Blink timer: common questions
How big is the Blink timer PCB?
The Blink timer measures 44 × 21 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Blink timer?
14 components, from 12 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 Blink timer design files?
From the sjm42/electronics 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 Blink timer design in my own project?
Yes, under the terms of its Apache-2.0 license, which sjm42 chose for the repository.
