Ch224base
About the Ch224base PCB
Ch224base is an open source PCB design by SdtElectronics, published on GitHub under the CERN-OHL-W-2.0 license. It is a 2-layer board measuring 50.9 × 18.5 mm, with 35 components from 22 distinct parts.
Other key parts include the NCP1117, 74LS32, MPM3620GQV-Z and 74LVC161. By type, the board carries 8 resistors, 6 capacitors, 5 switches, 5 LEDs, 4 ICs and 3 connectors.
It belongs with the dev boards & breakouts and power & battery designs in this gallery.
From the project
Miscellaneous PCB Works
The layout of this board took special consideration on soldering: All footprints with small pitches are arranged on the bottom side so they can be soldered easily with paste and heat guns or PTC heating tables. Components on the top side should be dealt afterwards.
Besides the pin headers, the sunk voltage is also supplied with a pad for connectors of 5.08mm pitches. On the right side, if the pad for external regulator is unused, it can also act as a 3.3V supply.
Main components on the Ch224base
Ch224base bill of materials (BOM)
35 components, 22 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | NCP1117 | SOT-223 | IC1 |
| 1 | 74LS32 | TSSOP-14_4.4x5mm_P0.65mm | U1 |
| 1 | MPM3620GQV-Z | CONV_MPM3620AGQV-P | U2 |
| 1 | 74LVC161 | TSSOP-16_4.4x5mm_P0.65mm | U3 |
| 2 | Conn_02x04_Counter_Clockwise | PinHeader_2x04_P2.54mm_Vertical | J1, J3 |
| 1 | Conn_01x02 | PhoenixContact_MCV_1,5_2-G-5.08_1x02_P5.08mm_Vertical | J2 |
| 1 | Conn_02x04_Counter_Clockwise | DIP-8_W12.7mm | CH224Core1 |
| 1 | Fuse | Fuse_2920_7451Metric_Castellated | F1 |
| 1 | Jumper | SOLDER-JUMPER_1-WAY | JP1 |
| 5 | SW_DIP_x01 | SW_SPST_CK_RS282G05A3 | SW1, SW2, SW3, SW4, SW5 |
| 5 | LED | LED_0603_1608Metric | 5V, 9V, 12V, 15V, 20V |
| 1 | D | D_0603_1608Metric | D1 |
| 3 | 1u | C_0603_1608Metric | C1, C2, C3 |
| 1 | 22u | C_0805_2012Metric | C4 |
| 1 | 47u | C_0805_2012Metric | C5 |
| 1 | 10u | C_0805_2012Metric | C6 |
| 1 | 1.5k | R_0603_1608Metric | R2 |
| 2 | 4.7k | R_0603_1608Metric | R3, R7 |
| 1 | 51k | R_0603_1608Metric | R4 |
| 1 | 160k | R_0603_1608Metric | R5 |
Show 2 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 56k | R_0603_1608Metric | R6 |
| 2 | R_Pack04 | R_Array_Convex_4x0603 | RN1, RN2 |
Ch224base design files
The KiCad project lives in the SdtElectronics/Biscuits repository on GitHub; these links point at the commit this page was built from.
Ch224base: common questions
How big is the Ch224base PCB?
The Ch224base measures 50.9 × 18.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Ch224base?
35 components, from 22 distinct parts. The full bill of materials is listed on this page.
Where can I download the Ch224base design files?
From the SdtElectronics/Biscuits repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Ch224base design in my own project?
Yes, under the terms of its CERN-OHL-W-2.0 license, which SdtElectronics chose for the repository.
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