2 layers47 × 28 mm
MVP1000717-waterProofFanControl
allardMVP/MVP1000717-waterProofFanControl
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14 parts
4 layers55 × 30 mm
Current measure
Luk9091/Analog_ditheringnA current meter for master class
- Size
- 55 × 30 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 59
- Nets
- 69
- Pads
- 204
- Tracks, vias
- 279, 98
- Pours
- 14
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 15 Oct 2025
- Updated
- 1 Feb 2026
Overview
Current measure is an open-source printed circuit board by Luk9091, from the Luk9091/Analog_dithering repository on GitHub. It is a 4-layer board of 55 × 30 mm with 59 parts on 69 nets, routed with 279 tracks and 98 vias.
It is built around the OPA350UA, ISO6521D and MIC5365-3.3YD5-TR, with the MBR1020VL and SI2319CDS among its other parts. Its parts include 23 capacitors, 14 resistors, 7 ICs, 5 connectors and 4 diodes. It belongs with the STM32 boards of this library.
Main components
5
OPA350UA
SOIC-8-55℃~+150℃ 1 10pA 10pA 2.7V~5.5V 22V/us 38MHz 40mA 4uV/℃ 5.2mA 500uV 7nV/√Hz@10kHz 90dB Built-in compensation Rail-to-Rail Input, Rail-to-Rail Output SOIC-8 Operational Amplifier ROHSTexas InstrumentsPrecision Op AmpsISO6521D
SOIC-8-40℃~+125℃ 1 1 1.71V~5.5V 1.71V~5.5V 11ns 150kV/us 50Mbps Fail-safe output High Level SOIC-8 Digital Isolators ROHSTexas InstrumentsDigital Isolators
MIC5365-3.3YD5-TR
TSOT-23-5-40℃~+125℃@(Tj) 1 150mA 200uVrms 3.3V 310mV@(150mA) 39uA 5.5V 70dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection、Enable Positive TSOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMicrochip TechnologyVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MBR1020VL
SOD-123F-55℃~+125℃ 1 Independent 1A 20V 340mV@1A 45A 600uA@20V SOD-123F Schottky Diodes ROHSonsemiSchottky Diodes
SI2319CDS
SOT-23-55℃~+150℃ 1 P-Channel 108mΩ@4.5V 2.5V 2.5W 21nC@10V 4.4A 40V 595pF 61pF 76pF P-Channel SOT-23 MOSFETs ROHSVishay IntertechnologyMOSFETs
Parts
59| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 100n | Capacitor_SMD:C_0805_2012Metric | C5, C7, C10, C11, C12, C13, C17, C18, C20, C23 |
| 4 | 1k | Resistor_SMD:R_0805_2012Metric | R1, R3, R11, R12 |
| 3 | 1u | Capacitor_SMD:C_0805_2012Metric | C4, C14, C22 |
| 2 | 0.1µ | Capacitor_SMD:C_0805_2012Metric | C8, C16 |
| 2 | 100 | Resistor_SMD:R_0805_2012Metric | R2, R9 |
| 2 | 10u | Capacitor_SMD:C_0805_2012Metric | C3, C21 |
| 2 | 2k | Potentiometer_THT:Potentiometer_Bourns_3296Z_Horizontal | RV1, RV2 |
| 2 | 4.7k | Resistor_SMD:R_0805_2012Metric | R13, R14 |
| 2 | 4.7u | Capacitor_SMD:C_0805_2012Metric | C2, C15 |
| 2 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D3, D4 |
| 2 | MBR1020VL | Diode_SMD:D_SOD-123F | D1, D2 |
| 1 | 0.1u | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 1.62M | Resistor_SMD:R_0805_2012Metric | R8 |
| 1 | 10 | Resistor_SMD:R_0805_2012Metric | R7 |
| 1 | 100k | Resistor_SMD:R_0805_2012Metric | R5 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R6 |
| 1 | 10n | Capacitor_SMD:C_0805_2012Metric | C19 |
| 1 | 19.1k | Resistor_SMD:R_0805_2012Metric | R4 |
| 1 | 220 | Resistor_SMD:R_0805_2012Metric | R10 |
| 1 | 22n | Capacitor_SMD:C_0805_2012Metric | C6 |
| 1 | 4.7µ | Capacitor_SMD:C_0805_2012Metric | C9 |
| 1 | 8MHz | Crystal:Resonator_SMD_Murata_CSTxExxV-3Pin_3.0x1.1mm | Y1 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | Conn_01x04 | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J6 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | Conn_02x03_Counter_Clockwise | Connector_PinSocket_2.54mm:PinSocket_2x03_P2.54mm_Vertical | J5 |
| 1 | INA186 | Package_TO_SOT_SMD:SOT-363_SC-70-6_Handsoldering | U2 |
| 1 | ISO652 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | MIC5365-3.3YD5 | Package_TO_SOT_SMD:TSOT-23-5_HandSoldering | U1 |
| 1 | OPA333xxDBV | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U7 |
| 1 | OPA333xxDBV | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | OPA350 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U5 |
| 1 | STM32G431C8Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U6 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_PTS647_Sx38 | SW1 |
| 1 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_Xinya_XY308-2.54-2P_1x02_P2.54mm_Horizontal | J3 |
| 1 | Si2319CDS | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | SolderJumper_3_Open | Jumper:SolderJumper-3_P1.3mm_Open_Pad1.0x1.5mm | JP1 |
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Questions
How big is the Current measure PCB?
It measures 55 × 30 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Current measure use?
59 parts, built around the OPA350UA, ISO6521D, MIC5365-3.3YD5-TR and MBR1020VL. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Current measure KiCad files?
From the Luk9091/Analog_dithering repository on GitHub, at the commit this page was made from: the board is Schematic/current_measure.kicad_pcb and its schematic Schematic/current_measure.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Current measure design in my own project?
Its repository states no licence, so its author keeps all rights: ask Luk9091 before reusing the design.