HC ohm tester
About the HC ohm tester PCB
HC ohm tester is an open source PCB design by Gregification, published on GitHub under the MIT license. It is a 2-layer board measuring 27.1 × 48.3 mm, with 24 components from 14 distinct parts.
Other key parts include the MCP3550-50-EMS, AP63205WU, ISO7731FQDBQQ1, AZ1117-5.0 and ISO7730FQDBQQ1. By type, the board carries 7 capacitors, 6 ICs, 4 connectors, 4 resistors, 2 transistors and 1 inductor.
It belongs with the power & battery designs in this gallery.
From the project
Battery Management System
BMS for University Of Texas At Arlington's FSAE Race team's E27 vehicle. > point of contact for this repo is George Boone
Main components on the HC ohm tester
HC ohm tester bill of materials (BOM)
24 components, 14 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | MCP3550-50-EMS | MSOP-8_3x3mm_P0.65mm | U1, U2 |
| 1 | AP63205WU | TSOT-23-6 | U3 |
| 1 | ISO7731FQDBQQ1 | DBQ16_TEX-M | U4 |
| 1 | AZ1117-5.0 | SOT-223-3_TabPin2 | U5 |
| 1 | ISO7730FQDBQQ1 | DBQ16_TEX-M | U6 |
| 1 | 2N3904 | TO-92_Inline | Q1 |
| 1 | NTMFS0D8N03C | ONSemi_SO-8FL_488AA | Q3 |
| 3 | Conn_01x02_Pin | PinHeader_1x02_P2.54mm_Vertical | J1, J2, J3 |
| 1 | Conn_01x08_Pin | PinHeader_1x08_P2.54mm_Vertical | J5 |
| 1 | 4.7u | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | L1 |
| 2 | 100n | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C6 |
| 1 | 10u | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C2 |
| 4 | 22u | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C3, C4, C5, C7 |
| 4 | ~50k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R2, R3, R6 |
HC ohm tester design files
The KiCad project lives in the Gregification/BeeMS repository on GitHub; these links point at the commit this page was built from.
HC ohm tester: common questions
How big is the HC ohm tester PCB?
The HC ohm tester measures 27.1 × 48.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the HC ohm tester?
24 components, from 14 distinct parts. The full bill of materials is listed on this page.
Where can I download the HC ohm tester design files?
From the Gregification/BeeMS repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the HC ohm tester design in my own project?
Yes, under the terms of its MIT license, which Gregification chose for the repository.
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