Electronic Load Analog Test Board v${VERSION}-${PCBVERSION}
fietser28·EL-Load·EL-Load-Analog/EL-Load-Analog.kicad_pcb
About the Electronic Load Analog Test Board v${VERSION}-${PCBVERSION}
Electronic Load Analog Test Board v${VERSION}-${PCBVERSION} is an open source PCB design by fietser28, published on GitHub. It is a 4-layer board measuring 185 × 95 mm, with 305 components from 99 distinct parts.
Other key parts include the U_SN74LVC1G3157DBVR, LM393A, U_REF5025, U_VO1400AEFTR and U_TL072CDT. By type, the board carries 124 resistors, 90 capacitors, 33 ICs, 25 diodes, 18 transistors and 7 connectors.
From the project
The DCL8010 electronic load module features a DC Electronic Load with several modes and protections. This project is the for the development boards for this project. There is a seperate git project for the firmware.
The DCL8010 electronic load module features a DC Electronic Load with several modes and protections. This project is the for the development boards for this project. There is a seperate git project for the firmware.
Together with [studio] and a BB3 there will be some example dashboards in the near future. For example a application:
Modes: Constant Current (CC), Constant Voltage (CV), Constant Power (CP) and Constand Resistance (CR). CC and CV are implemented in hardware, CP and CR are software controlled and have a slower dynamic response. Limits: Current: 1mA - 10A set and read Voltage…

Main components on the Electronic Load Analog Test Board v${VERSION}-${PCBVERSION}
Electronic Load Analog Test Board v${VERSION}-${PCBVERSION} bill of materials (BOM)
305 components, 99 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | U_SN74LVC1G3157DBVR SN74LVC1G3157DBV | SOT-23-6 | U1 |
| 1 | LM393A | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | U_REF5025 REF5025AD | SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 2 | U_VO1400AEFTR VO1400AEFTR | SO-4_4.4x4.3mm_P2.54mm | U8, U9 |
| 1 | U_TL072CDT TL072/OPA2376 | SOIC-8_3.9x4.9mm_P1.27mm | U10 |
| 2 | U_DAC8555IPW DAC8555 | TSSOP-16_4.4x5mm_P0.65mm | U11, U12 |
| 1 | U_TPS7A2030PDBVR TPS7A2030 | SOT-23-5 | U15 |
| 1 | U_TPS72325DB TPS72325 | SOT-23-5 | U17 |
| 2 | U_MCP6V51T-E/OT MCP6V51 | SOT-23-5 | U18, U19 |
| 1 | U_ADS131M02 ADS131M02 | TSSOP-20_4.4x6.5mm_P0.65mm | U20 |
| 1 | U_LT1964ES5 LT1964-5 | TSOT-23-5 | U21 |
| 1 | U_AZ1117CH-ADJTRG1 AMS1117 | SOT-223-3_TabPin2 | U22 |
| 1 | U_AZ1117CH-5.0TRG1 TLV1117-50 | SOT-223-3_TabPin2 | U23 |
| 4 | U_LM318D LM318D | SOIC-8_3.9x4.9mm_P1.27mm | U201, U202, U205, U206 |
| 4 | U_LTC2050HVCS5 MCP6V51/LTC2050HV | SOT-23-5 | U203, U204, U207, U208 |
| 2 | U_LM833DR LM833 | SOIC-8_3.9x4.9mm_P1.27mm | U301, U302 |
| 2 | U_LTC2050HVCS5 OPA189/MCP6V51/LTC2050HV | SOT-23-5 | U303, U304 |
| 2 | U_74HCT02D 74HCT02 | SO-14_3.9x8.65mm_P1.27mm | U305, U403 |
| 2 | U_LM393 LM393A | SOIC-8_3.9x4.9mm_P1.27mm | U306, U402 |
| 1 | U_AD8038ARZ AD8038 | SOIC-8_3.9x4.9mm_P1.27mm | U401 |
Show 79 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 7 | Q_2N7002 2N7002 | SOT-23 | Q1, Q2, Q201, Q202, Q205, Q206, Q301 |
| 2 | Q_MMBT5551 MMBT5551 | SOT-23 | Q3, Q6 |
| 1 | Q_MMBT3904 MMBT3904 | SOT-23 | Q4 |
| 1 | Q_MMBT5401 MMBT5401 | SOT-23 | Q5 |
| 1 | AOSP66923 | SO-8_3.9x4.9mm_P1.27mm | Q7 |
| 1 | MMBT5401 | SOT-23 | Q8 |
| 1 | TIP42C | TO-220-3_Vertical | Q101 |
| 4 | Q_IRFP250MPBF IRFP250M | TO-247-3_Vertical | Q203, Q204, Q207, Q208 |
| 1 | H_JST_XH_PCB_2P_VERT Temp Sensor PCB | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J1 |
| 1 | H_BANANA_SOCKET_24A_BLACK SWEB8094AU-SW | SWEB-8094-AU | J2 |
| 1 | H_MALE_1X40_VERTICAL_THT Conn_02x08_Odd_Even | PinHeader_2x08_P2.54mm_Vertical | J4 |
| 1 | H_BANANA_SOCKET_24A_RED SWEB8094AU-RT | SWEB-8094-AU | J5 |
| 1 | H_PLUG_2P_3.81MM_PCB_HOR Conn_01x02_Socket | PhoenixContact_MC_1,5_2-G-3.81_1x02_P3.81mm_Horizontal | J7 |
| 1 | H_FEMALE_2X8_SMD Conn_02x08_Odd_Even | PinSocket_2x08_P2.54mm_Vertical_SMD | J8 |
| 1 | H_JST_XH_PCB_2P_VERT Temp Sensor heatsink | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J9 |
| 1 | Fuse | Fuseholder_Cylinder-5x20mm_Schurter_0031_8201_Horizontal_Open | F1 |
| 1 | Heatsink | LAM3K | HS102 |
| 1 | Jumper_2_Open | SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP305 |
| 1 | Jumper_2_Open | SolderJumper-2_P1.3mm_Bridged2Bar_RoundedPad1.0x1.5mm | JP306 |
| 1 | ER_EE2-5TNU-L EE2-5TNU | Relay_DPDT_Kemet_EE2_NU_DoubleCoil | K2 |
| 1 | -5V | TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP1 |
| 1 | +5V | TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP2 |
| 1 | GND | TestPoint_Loop_D2.50mm_Drill1.0mm | TP3 |
| 4 | PESD3V3L1BAF | D_SOD-323 | D1, D4, D5, D6 |
| 4 | D_1N4148_MINIMELF 1N4148 | D_MiniMELF | D2, D3, D301, D302 |
| 2 | TZMB16-GS08 | D_MiniMELF | D7, D8 |
| 6 | 1N4148 | D_MiniMELF | D9, D10, D11, D12, D13, D14 |
| 8 | D_Z_16V_MINIMELF TZMB16-GS08 | D_MiniMELF | D201, D202, D204, D205, D206, D207, D208, D209 |
| 1 | D_1.5KE100A_SMC 1.5KE100A (smd) | D_SMC | D203 |
| 2 | 1n | C_0805_2012Metric | C1, C310 |
| 1 | 33N 33n | C_0805_2012Metric | C2 |
| 1 | R46KI3100CKM1K 100nF | C_Rect_L18.0mm_W5.0mm_P15.00mm_FKS3_FKP3 | C3 |
| 48 | 100N 100n | C_0805_2012Metric | C4, C21, C22, C23, C24, C25, C26, C36 +40 |
| 9 | 10N 10n | C_0805_2012Metric | C5, C6, C18, C40, C41, C43, C48, C54 +1 |
| 1 | 100n | C_0805_2012Metric | C7 |
| 10 | 1u | C_0805_2012Metric | C10, C12, C19, C20, C29, C32, C42, C44 +2 |
| 3 | 22U 22u | C_0805_2012Metric | C11, C51, C53 |
| 5 | 10U 10u | C_0805_2012Metric | C27, C28, C49, C50, C52 |
| 3 | 2U2 2u2 | C_0805_2012Metric | C34, C35, C316 |
| 1 | 220N 220n | C_0805_2012Metric | C45 |
| 4 | 470P 1n | C_0805_2012Metric | C213, C214, C227, C228 |
| 1 | 100P 100p | C_0805_2012Metric | C315 |
| 1 | 670N 680n | C_0805_2012Metric | C401 |
| 1 | FMP300FRF73-1K5 1k5 (3W) | R_Axial_DIN0516_L15.5mm_D5.0mm_P5.08mm_Vertical | R2 |
| 3 | 5k 0.1% | R_0805_2012Metric | R3, R6, R315 |
| 20 | 100k 0.1% | R_0805_2012Metric | R4, R5, R26, R29, R30, R31, R211, R212 +12 |
| 2 | 10K 330 | R_0805_2012Metric | R8, R21 |
| 2 | 22K 750 | R_0805_2012Metric | R9, R10 |
| 5 | 0 | R_0805_2012Metric | R11, R12, R24, R25, R45 |
| 3 | 100K 100k | R_0805_2012Metric | R16, R20, R321 |
| 7 | 10K 10k | R_0805_2012Metric | R17, R201, R202, R403, R502, R507, R509 |
| 2 | 100K 470 | R_0805_2012Metric | R18, R19 |
| 1 | 22K 47k | R_0805_2012Metric | R22 |
| 4 | 10k 0.1% | R_0805_2012Metric | R27, R28, R305, R306 |
| 7 | 1k | R_0805_2012Metric | R32, R33, R34, R35, R322, R401, R402 |
| 3 | 47 | R_0805_2012Metric | R36, R37, R38 |
| 2 | 22k | R_0805_2012Metric | R39, R58 |
| 1 | 1K8 200 | R_0805_2012Metric | R40 |
| 1 | 220 1k8 | R_0805_2012Metric | R41 |
| 1 | 10K 22k | R_0805_2012Metric | R42 |
| 1 | 47K 47k | R_0805_2012Metric | R43 |
| 1 | 10K 4k7 | R_0805_2012Metric | R44 |
| 4 | 10k | R_0805_2012Metric | R46, R55, R56, R57 |
| 2 | 4k7 | R_0805_2012Metric | R47, R48 |
| 7 | 1M | R_0805_2012Metric | R49, R51, R52, R209, R210, R229, R230 |
| 2 | 100k | R_0805_2012Metric | R53, R54 |
| 4 | 100K 22k | R_0805_2012Metric | R203, R205, R223, R225 |
| 4 | 20k 0.1% | R_0805_2012Metric | R204, R206, R224, R226 |
| 4 | 100 | R_0805_2012Metric | R207, R208, R227, R228 |
| 8 | 1k1 0.1% | R_0805_2012Metric | R215, R216, R217, R218, R235, R236, R237, R238 |
| 4 | 10M 10m | R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R219, R220, R239, R240 |
| 2 | 10K 0 | R_0805_2012Metric | R221, R222 |
| 7 | 2k | R_0805_2012Metric | R301, R302, R303, R304, R325, R404, R405 |
| 2 | 1k 0.1% | R_0805_2012Metric | R307, R308 |
| 2 | 39k 0.1% | R_0805_2012Metric | R317, R318 |
| 1 | 7K5 7k5 | R_0805_2012Metric | R320 |
| 2 | 15K 15k | R_0805_2012Metric | R323, R503 |
| 1 | 2K2 2k2 | R_0805_2012Metric | R330 |
| 1 | 220 | R_0805_2012Metric | R504 |
Electronic Load Analog Test Board v${VERSION}-${PCBVERSION} design files
The KiCad project lives in the fietser28/EL-Load repository on GitHub; these links point at the commit this page was built from.
Electronic Load Analog Test Board v${VERSION}-${PCBVERSION}: common questions
How big is the Electronic Load Analog Test Board v${VERSION}-${PCBVERSION}?
The Electronic Load Analog Test Board v${VERSION}-${PCBVERSION} measures 185 × 95 mm, has 4 copper layers and is 1.57252 mm thick.
How many components are on the Electronic Load Analog Test Board v${VERSION}-${PCBVERSION}?
305 components, from 99 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 Electronic Load Analog Test Board v${VERSION}-${PCBVERSION} design files?
From the fietser28/EL-Load repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Electronic Load Analog Test Board v${VERSION}-${PCBVERSION} design in my own project?
The repository has no license, so all rights stay with fietser28. Use it as a reference, and ask the author before reusing the design.