CJ125 Wide O2
About the CJ125 Wide O2 PCB
CJ125 Wide O2 is an open source PCB design by rusefi, published on GitHub. It is a 2-layer board measuring 18.2 × 34.3 mm, with 39 components from 30 distinct parts.
Other key parts include the CJ125. By type, the board carries 22 resistors, 9 capacitors, 2 connectors, 2 diodes, 1 IC and 1 transistor.
From the project
In this repo we archive rusEfi-related abandoned hardware files
2019 status: known to work, but documentation is very limited :(
On this board UR and UA do NOT have build-in resistor dividers.
There is an opinion that for open air UA divider is required.
Main components on the CJ125 Wide O2
CJ125 Wide O2 bill of materials (BOM)
39 components, 30 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CJ125 | SOIC-24_7.5x15.4mm_Pitch1.27mm | U1 |
| 1 | FDS2734 | SO8E_ST | Q1 |
| 1 | CONN_02X03 | Socket_Strip_Straight_2x03 | P4 |
| 1 | CONN_02X05 | Socket_Strip_Straight_2x05 | P8 |
| 2 | TEST | R_0603 | W1, W2 |
| 1 | LED-RED | LED_0805_2012Metric | D1 |
| 1 | LED-GRN | LED_0603_1608Metric | D2 |
| 1 | 1000PF 1000pF | C_0805_2012Metric | C1 |
| 3 | 0.033UF 0.033uF | C_0805_2012Metric | C2, C6, C8 |
| 1 | 0.1UF DNP | C_0805_2012Metric | C3 |
| 1 | 0.1UF 0.1uF | C_0805_2012Metric | C4 |
| 1 | 220PF 220pf | C_0805_2012Metric | C5 |
| 1 | 0.1UF 0.1uF | C_0603_1608Metric | C7 |
| 1 | 0.01UF 0.033uF | C_0603_1608Metric | C9 |
| 4 | 10K 10k | R_0805_2012Metric | R1, R5, R7, R16 |
| 1 | 21K6 21k6 | R_0805_2012Metric | R2 |
| 1 | 160 0R | R_0805_2012Metric | R3 |
| 1 | 61.9 | R_0805_2012Metric | R4 |
| 1 | 6.8K 6.8k | R_0805_2012Metric | R6 |
| 1 | 1k | R_0805_2012Metric | R8 |
Show 10 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 82.5 | R_0805_2012Metric | R9 |
| 1 | 117.5 220 | R_0805_2012Metric | R10 |
| 1 | 4.7K 5.11k | R_0805_2012Metric | R11 |
| 1 | 100K 100k | R_0603_1608Metric | R12 |
| 1 | 100K 100k | R_0805_2012Metric | R13 |
| 1 | 470K 511k | R_0805_2012Metric | R14 |
| 2 | 1k | R_0603_1608Metric | R15, R22 |
| 2 | 6.8k | R_0805_2012Metric | R17, R19 |
| 2 | 10k | R_0805_2012Metric | R18, R20 |
| 1 | 4.7k | R_0805_2012Metric | R21 |
CJ125 Wide O2 design files
The KiCad project lives in the rusefi/hw_legacy repository on GitHub; these links point at the commit this page was built from.
CJ125 Wide O2: common questions
How big is the CJ125 Wide O2 PCB?
The CJ125 Wide O2 measures 18.2 × 34.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the CJ125 Wide O2?
39 components, from 30 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 CJ125 Wide O2 design files?
From the rusefi/hw_legacy repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the CJ125 Wide O2 design in my own project?
The repository has no license, so all rights stay with rusefi. Use it as a reference, and ask the author before reusing the design.
More boards in hw_legacy
M52
145 × 118 mm226 parts2LNo license2
STM32Frankenso
147.6 × 102 mm127 parts2LNo license2
Frankenso foundation
154.1 × 161.7 mm75 parts2LNo license2
AVR/ArduinoWBO2
67.4 × 40.6 mm51 partsNo license2
Ion
66 × 31.8 mm34 parts2LNo license2
Frankenstein foundation
100 × 100 mm14 parts2LNo license2
Low Z injector driver
13.5 × 15.5 mm12 partsNo license2