2 layers89.2 × 62.1 mm
Dce pcb v1
DeniseViltes/dce-g5-proyecto_integrador
FIUBA - Electrónica - Taller de Diseño de Circuitos Electrónicos -Proyecto de diseño: Sistema de alimentación para aplicaciones industriales y automotrices
59 parts1
2 layers91.4 × 94 mm
Simple electronic load
johnysmrz/ElectronicLoadYet another simple electronic load with a flair.
- Size
- 91.4 × 94 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 48
- Nets
- 32
- Pads
- 125
- Tracks, vias
- 428, 26
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 7 Feb 2026
- Updated
- 7 Feb 2026
Overview
Simple electronic load is an open-source printed circuit board by johnysmrz, from the johnysmrz/ElectronicLoad repository on GitHub. It is a 2-layer board of 91.4 × 94 mm with 48 parts on 32 nets, routed with 428 tracks and 26 vias.
It is built around the IRM-10-12, LM324 and NE555P, with the BC557B among its other parts. Its parts include 15 resistors, 9 connectors, 8 capacitors, 3 ICs and 3 diodes. It belongs with the power boards of this library.
Main components
4
IRM-10-12
插件,45.7x5.4mm插件,45.7x5.4mm Power Module/Power Supply ROHSMWPower Module/Power Supply
LM324
SOP-14-1.5V~10V 0℃~+70℃ 24V 250nA 3V~20V 4 40mA 50nA 700uA 7mV 80dB SOP-14 Operational Amplifier ROHSHXY MOSFETOperational Amplifier
NE555P
DIP-80℃~+70℃ 100kHz 10mA 4.5V~16V DIP-8 555 Timers / Counters ROHSTexas InstrumentsTimers / Counters
BC557B
TO-921 PNP 100mA 100nA 150MHz 180 45V 5V 625mW 650mV PNP TO-92 Bipolar (BJT) ROHSLGEBipolar (BJT)
Parts
48| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 68k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3, R4, R5, R6 |
| 3 | 100n | Capacitor_THT:C_Disc_D7.5mm_W5.0mm_P7.50mm | C3, C4, C7 |
| 3 | 560R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R7, R8, R9 |
| 2 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2 |
| 2 | 10k | Potentiometer_THT:Potentiometer_Bourns_3299Z_Horizontal | RV1, RV2 |
| 2 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R14, R15 |
| 2 | 220u | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C5, C8 |
| 2 | 47nF | Capacitor_THT:C_Disc_D9.0mm_W5.0mm_P7.50mm | C1, C2 |
| 2 | Conn_01x01 | Connector_Wire:SolderWire-0.5sqmm_1x01_D0.9mm_OD2.3mm | J8, J9 |
| 2 | NE555P | Package_DIP:DIP-8_W7.62mm | U1, U2 |
| 1 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R11 |
| 1 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R12 |
| 1 | 1k | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | TH2 |
| 1 | 20k | Potentiometer_THT:Potentiometer_Bourns_3299Z_Horizontal | RV3 |
| 1 | 20k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R13 |
| 1 | 2k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R10 |
| 1 | 470pF | Capacitor_THT:C_Disc_D8.0mm_W5.0mm_P7.50mm | C6 |
| 1 | BC557B | Package_TO_SOT_THT:TO-92_Wide | T1 |
| 1 | Conn_01x02 | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J5 |
| 1 | Conn_01x03 | Connector_JST:JST_EH_B3B-EH-A_1x03_P2.50mm_Vertical | J7 |
| 1 | Fuse | Fuse:Fuseholder_Cylinder-5x20mm_Schurter_0031_8201_Horizontal_Open | F1 |
| 1 | High LED | Connector_Wire:SolderWire-0.25sqmm_1x02_P4.5mm_D0.65mm_OD2mm | D2 |
| 1 | IRM-10-12 | simple_electronic_load:Converter_ACDC_MeanWell_IRM-10-xx_THT | PS1 |
| 1 | LM324 | Package_DIP:DIP-14_W7.62mm | U3 |
| 1 | Line | faston:Faston_6,3_vertical_14mm | J3 |
| 1 | Low LED | Connector_Wire:SolderWire-0.25sqmm_1x02_P4.5mm_D0.65mm_OD2mm | D3 |
| 1 | Low/Hi BTN | Connector_Wire:SolderWire-0.25sqmm_1x02_P4.5mm_D0.65mm_OD2mm | J2 |
| 1 | Main POT | Connector_Wire:SolderWire-0.5sqmm_1x03_P4.6mm_D0.9mm_OD2.1mm | J6 |
| 1 | Neutral | faston:Faston_6,3_vertical_14mm | J4 |
| 1 | On LED | Connector_Wire:SolderWire-0.25sqmm_1x02_P4.5mm_D0.65mm_OD2mm | D1 |
| 1 | On/Off | Connector_Wire:SolderWire-0.25sqmm_1x02_P4.5mm_D0.65mm_OD2mm | J1 |
| 1 | TestPoint | TestPoint:TestPoint_Pad_D3.0mm | TP1 |
| 1 | TestPoint | TestPoint:TestPoint_Pad_3.0x3.0mm | TP2 |
| 1 | Thermistor_NTC | Resistor_THT:R_Box_L14.0mm_W5.0mm_P9.00mm | TH1 |
Questions
How big is the Simple electronic load PCB?
It measures 91.4 × 94 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Simple electronic load use?
48 parts, built around the IRM-10-12, LM324, NE555P and BC557B. 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 Simple electronic load KiCad files?
From the johnysmrz/ElectronicLoad repository on GitHub, at the commit this page was made from: the board is simple_electronic_load.kicad_pcb and its schematic simple_electronic_load.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Simple electronic load design in my own project?
Its repository states no licence, so its author keeps all rights: ask johnysmrz before reusing the design.
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