Locks
About the Locks PCB
Locks is an open source PCB design by marmbrus, published on GitHub. It is a 4-layer board measuring 70 × 45 mm, with 54 components from 26 distinct parts.
Other key parts include the MCP23008-XML, ADS1115IDGS, BTS70021EPPXUMA1 and TPS54202DDC. By type, the board carries 17 resistors, 15 capacitors, 10 connectors, 5 ICs, 5 diodes and 1 inductor.
Main components on the Locks
Locks bill of materials (BOM)
54 components, 26 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MCP23008-XML MCP23008-xML | QFN-20-1EP_4x4mm_P0.5mm_EP2.7x2.7mm | U1 |
| 1 | ADS1115IDGS | TSSOP-10_3x3mm_P0.5mm | U2 |
| 2 | BTS70021EPPXUMA1 | PG-TSDSO-14_L4.9-W3.9-P0.65-LS6.0-BL-EP | U3, U6 |
| 1 | TPS54202DDC | SOT-23-6 | U4 |
| 7 | 39-30-1020 | CONN-TH_2P-P5.50_39-30-1020 | CN1, CN3, CN4, CN5, CN6, CN7, CN8 |
| 1 | C160390 BM04B-SRSS-TB(LF)(SN) | CONN-SMD_BM04B-SRSS-TB | CN2 |
| 1 | CONN_02X03_ODD_EVEN Conn_02x03_Odd_Even | PinHeader_2x03_P2.54mm_Vertical | J1 |
| 1 | CONN_02X04_ODD_EVEN Conn_02x04_Odd_Even | PinHeader_2x04_P2.54mm_Vertical | J2 |
| 1 | 01550900M | FUSE-SMD_L9.8-W5.0_01550900M | FH1 |
| 1 | SP0503BAHT | SOT-143 | D1 |
| 2 | LED | LED_0603_1608Metric | D2, D4 |
| 2 | C151256 D_TVS | D_SMB | D3, D5 |
| 1 | XGL4040-153MEC | IND-SMD_L4.0-W4.0_XAL4040-103 | L1 |
| 5 | 100NF 100nF | C_0603_1608Metric | C1, C4, C5, C9, C10 |
| 3 | 1UF 1uf | C_0603_1608Metric | C2, C3, C6 |
| 2 | 10UF 10uf | C_0603_1608Metric | C7, C8 |
| 4 | 22UF 22uF | C_1206_3216Metric | C11, C12, C14, C15 |
| 1 | 75PF 75pF | C_0603_1608Metric | C13 |
| 4 | 10K 10k | R_0603_1608Metric | R1, R2, R3, R4 |
| 4 | 3.3K 3.3k | R_0805_2012Metric | R5, R6, R7, R8 |
Show 6 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 1.5K 1.5k | R_0603_1608Metric | R9, R15 |
| 2 | 4.7K 4.7k | R_0603_1608Metric | R10, R16 |
| 2 | 3.3K 3.3k | R_0603_1608Metric | R11, R17 |
| 1 | 49.9 | R_0603_1608Metric | R12 |
| 1 | 100K 100k | R_0603_1608Metric | R13 |
| 1 | 13.3K 13.3k | R_0603_1608Metric | R14 |
Locks design files
The KiCad project lives in the marmbrus/circuits repository on GitHub; these links point at the commit this page was built from.
- Layoutlocks/locks.kicad_pcb
- Schematiclocks/locks.kicad_sch
- BOMlocks/production/bom.csv
Locks: common questions
How big is the Locks PCB?
The Locks measures 70 × 45 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Locks?
54 components, from 26 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 Locks design files?
From the marmbrus/circuits 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 Locks design in my own project?
The repository has no license, so all rights stay with marmbrus. Use it as a reference, and ask the author before reusing the design.
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