Comp75
About the Comp75 PCB
Comp75 is an open source PCB design by benzooku, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 304.9 × 120.7 mm, with 373 components from 35 distinct parts.
Other key parts include the BQ24075RGT, SN74LVC1T45DBV, ESDR0502NMUTAG and E73-2G4M08S1C. By type, the board carries 172 diodes, 94 capacitors, 85 relays, 11 resistors, 4 ICs and 2 transistors.
It belongs with the keyboards designs in this gallery.
From the project
Keyboard Project with PCB design. 75% layout
Main components on the Comp75
Comp75 bill of materials (BOM)
373 components, 35 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BQ24075RGT | VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm | U2 |
| 1 | SN74LVC1T45DBV Texas Instruments | SOT-363_SC-70-6 | U4 |
| 1 | ESDR0502NMUTAG | UDFN-6_1.2x1.0mm_P0.4mm | U5 |
| 1 | E73-2G4M08S1C | E73-2G4M08S1C | U6 |
| 1 | 2N7002 Changjiang Electronics Tech (CJ) | SOT-23 | Q1 |
| 1 | AO3401A Alpha & Omega Semicon | SOT-23 | Q2 |
| 1 | USB_C_RECEPTACLE_USB2.0 USB_C_Receptacle_USB2.0 | USB_C_Receptacle_G-Switch_GT-USB-7010ASV | J1 |
| 1 | SWD | PinHeader_1x05_P1.00mm_Vertical | J2 |
| 1 | C206938 500mA hold | Fuse_0402_1005Metric | F1 |
| 75 | KEYSW | SW_Cherry_MX_1.00u_PCB | K0_0, K0_1, K0_2, K0_3, K0_4, K0_5, K0_6, K0_7 +67 |
| 1 | KEYSW | SW_Cherry_MX_2.00u_PCB | K1_13 |
| 1 | KEYSW | SW_Cherry_MX_1.50u_PCB | K2_0 |
| 1 | KEYSW | SW_Cherry_MX_ISOEnter_PCB | K2_13 |
| 2 | KEYSW | SW_Cherry_MX_1.75u_PCB | K3_0, K4_12 |
| 4 | KEYSW | SW_Cherry_MX_1.25u_PCB | K4_0, K5_0, K5_1, K5_2 |
| 1 | KEYSW | SW_Cherry_MX_6.25u_PCB | K5_3 |
| 1 | KMR231GLFS RESET C&K | SW_Push_1P1T_NO_CK_KMR2 | SW1 |
| 85 | D | D_SOD-123F | D0_0, D0_1, D0_2, D0_3, D0_4, D0_5, D0_6, D0_7 +77 |
| 85 | WS2812C SK6812MINI-E Worldsemi | SK6812MINIE | D2, D4, D6, D7, D8, D9, D10, D11 +77 |
| 1 | C160478 ORANGE | LED_0603_1608Metric | D3 |
Show 15 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PMEG4010CEJ | D_SOD-123F | D5 |
| 1 | 10UH 10uH | L_0603_1608Metric | L4 |
| 1 | 100NF 100nF | C_0603_1608Metric | C3 |
| 3 | 4.7UF 4.7uF | C_0603_1608Metric | C14, C24, C25 |
| 1 | 10NF 10nF | C_0603_1608Metric | C19 |
| 1 | CC0603KRX7R9BB104 1uF YAGEO | C_0603_1608Metric | C23 |
| 1 | 4.7UF 4.7uF | C_0402_1005Metric | C26 |
| 87 | CC0603KRX7R9BB104 100n YAGEO | C_0603_1608Metric | C27, C28, C29, C30, C31, C32, C33, C34 +79 |
| 1 | 3.9K 3.9k | R_0402_1005Metric | R1 |
| 2 | 2M | R_0603_1608Metric | R3, R12 |
| 1 | 10M | R_0603_1608Metric | R4 |
| 1 | 0603WAF5101T5E 10k Uniroyal Elec | R_0402_1005Metric | R6 |
| 2 | 10K 10k | R_0402_1005Metric | R7, R8 |
| 2 | 5.1K 5.1k | R_0603_1608Metric | R9, R10 |
| 2 | 0603WAF5101T5E 5K1 Uniroyal Elec | R_0603_1608Metric | R13, R14 |
Comp75 design files
The KiCad project lives in the benzooku/comp75 repository on GitHub; these links point at the commit this page was built from.
Comp75: common questions
How big is the Comp75 PCB?
The Comp75 measures 304.9 × 120.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Comp75?
373 components, from 35 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 Comp75 design files?
From the benzooku/comp75 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 Comp75 design in my own project?
Yes, under the terms of its GPL-3.0 license, which benzooku chose for the repository.
Similar boards
Lily58 Lite Rev3 TOP Case
kata0510
142.5 × 106.4 mm34 parts2LMIT2.3k
Lily58 Pro BOTTOM
142.5 × 106.3 mm5 parts2LMIT2.3k
Lily58
142.5 × 106.3 mm83 parts2LMIT2.3k
Lily58 Pro
142.5 × 106.3 mm83 parts2LMIT2.3k
KLOR
GEIGEIGEIST
160.2 × 118.3 mm79 parts2LGPL-3.01.2k
Pcb top
tompi
132.5 × 95.1 mm18 parts2LCC-BY-4.01.2k