2 layers100 × 80 mm
2 layers177.8 × 107.9 mm
WaCS-52KX R1
dtatum7/WaCS-52KXControl board upgrade for a 13.8 V 50 A linear bench power supply
- Size
- 177.8 × 107.9 mm
- Copper layers
- 2
- Thickness
- 1.61 mm
- Parts
- 113
- Nets
- 39
- Pads
- 176
- Tracks, vias
- 192, 406
- Pours
- 147
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 8 Apr 2026
- Updated
- 8 Apr 2026
Overview
WaCS-52KX R1 is an open-source printed circuit board by dtatum7, from the dtatum7/WaCS-52KX repository on GitHub, published under the MIT licence. It is a 2-layer board of 177.8 × 107.9 mm with 113 parts on 39 nets, routed with 192 tracks and 406 vias.
It is built around the TIP41C, UA723CD and RSMF1JT2R20, with the C320C104K5R5TA, RNF14FTD3K32 and UVY1H102MHD among its other parts. Its parts include 22 resistors, 17 capacitors, 5 diodes, 2 ICs and 1 transistor. It belongs with the power boards of this library.
Main components
12
TIP41C
TO-220-3L-55℃~+150℃ 1 NPN 1.5V 100V 15 2W 3MHz 400uA 5V 6A NPN TO-220-3L Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
UA723CD
SOIC-140℃~+70℃@(Ta) 1 150mA 2.3mA 20uV 2V~37V 40V 86dB@(10kHz) Adjustable Over Current Protection Positive and Negative SOIC-14 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
RSMF1JT2R20
插件,D3.2xL9mm-55℃~+200℃ 1W 2.2Ω Metal Oxide Film Resistor ±200ppm/℃ ±5% 插件,D3.2xL9mm Through Hole Resistors ROHSStackpole Electronics (SEI)Through Hole Resistors
C320C104K5R5TA
插件,P=2.54mm100nF 2.54mm 50V X7R ±10% Plugin,P=2.54mm Multilayer Ceramic Capacitors MLCC - Leaded ROHSKEMETMultilayer Ceramic Capacitors MLCC - Leaded
RNF14FTD3K32
插件,D2.4xL6.4mm-55℃~+155℃ 250mW 3.32kΩ Metal Film Resistor ±1% ±100ppm/℃ 插件,D2.4xL6.4mm Through Hole Resistors ROHSStackpole Electronics (SEI)Through Hole Resistors
UVY1H102MHD
插件,D12.5xL25mm-55℃~+105℃ 1000hrs@105℃ 1000uF 12.5mm 25mm 50V 5mm 950mA@120Hz ±20% 插件,D12.5xL25mm Aluminum Electrolytic Capacitors - Leaded ROHSNichiconAluminum Electrolytic Capacitors - LeadedRNF14FTD825R
插件,D2.4xL6.4mm-55℃~+155℃ 250mW 825Ω Metal Film Resistor ±1% ±100ppm/℃ 插件,D2.4xL6.4mm Through Hole Resistors ROHSStackpole Electronics (SEI)Through Hole ResistorsC320C102K5R5TA
-1nF 50V X7R ±10% - Multilayer Ceramic Capacitors MLCC - Leaded ROHSKEMETMultilayer Ceramic Capacitors MLCC - LeadedRNF14FTD1K00
插件,D2.4xL6.4mm-55℃~+155℃ 1kΩ 250mW Metal Film Resistor ±1% ±100ppm/℃ 插件,D2.4xL6.4mm Through Hole Resistors ROHSStackpole Electronics (SEI)Through Hole ResistorsRNF14FTD10R0
插件,D2.4xL6.4mm-55℃~+155℃ 10Ω 250mW Metal Film Resistor ±1% ±100ppm/℃ 插件,D2.4xL6.4mm Through Hole Resistors ROHSStackpole Electronics (SEI)Through Hole ResistorsRNF14FTD11K5
插件,D2.4xL6.4mm-55℃~+155℃ 11.5kΩ 250mW Metal Film Resistor ±1% ±100ppm/℃ 插件,D2.4xL6.4mm Through Hole Resistors ROHSStackpole Electronics (SEI)Through Hole ResistorsRNF14FTD110R
插件,D2.4xL6.4mm-55℃~+155℃ 110Ω 250mW Metal Film Resistor ±1% ±100ppm/℃ 插件,D2.4xL6.4mm Through Hole Resistors ROHSStackpole Electronics (SEI)Through Hole Resistors
README
README.md# WaCS-52KX
Control board upgrade for a 13.8 V 50 A linear bench power supply.
This repository contains the KiCad design files, manufacturing outputs,
documentation, and validation data for the WaCS-52KX control board.
---
## Hardware
Bare PCB:
Assembled PCBA installed in power supply:
---
## Design Verification
Electrical validation was performed across multiple output voltages
and load conditions.
The Design Verification Test (DVT) report includes:
• supply droop vs load current
• ripple measurements
• turn-on / turn-off transient behavior
Full report:
DVT/WaCS-52KX_DVT.pdf
---
## Documentation
Fabrication Drawing
PDF/WaCS-52KX_R1_FAB.pdf
Assembly Drawing
PDF/WaCS-52KX_R1_ASSY.pdf
Schematic
PDF/WaCS-52KX_R1_SCH.pdf
---
## Repository Structure
ASCII/ ASCII exports
BOM/ Bill of materials
Gerbers/ Manufacturing outputs
Quotes/ Reduced layer set used for fabrication quotes
PDF/ Fabrication and assembly drawings
DVT/ Design verification test data and report
Images/ Photographs used in documentation
libraries/ KiCad project libraries
---
## Notes
Placement files are intentionally omitted because requirements are
contract manufacturer specific.
Paste layers are omitted and generated by the PCB fabrication house.
---
Wireless and Control Systems LLC
Parts
113| Qty | Value | Footprint | References |
|---|---|---|---|
| 39 | 16ga | WaCS:J_16ga | -VAUX1, -VMAIN1, -VMAIN2, +VAUX1, +VMAIN1, +VMAIN2, +VMAIN3, +VMAIN4, +VOUT1, +VOUT2, +VOUT3, +VOUT4, +VOUT5, +VOUT6, +VOUT7, +VOUT8 +23 |
| 15 | 24ga | WaCS:J_24ga | -FAN1, -IMTR1, -LED1, -LED2, -STBY1, -VADJ1, -VMTR1, +FAN1, +IMTR1, +LED1, +LED2, +STBY1, +VADJ1, +VMTR1, WVADJ1 |
| 8 | 2.2 | WaCS:RES_TH_1000mW | R1, R3, R5, R7, R9, R10, R12, R15 |
| 5 | 0.1u | WaCS:CAP_C320_KEM | C1, C2, C13, C14, C17 |
| 5 | 10000u | WaCS:LGU1H103MELB | C3, C4, C5, C6, C7 |
| 5 | 1N5393 | WaCS:DO-204AL | D1, D2, D3, D4, D5 |
| 4 | 160mil | WaCS:MH_160mil_NP | MH3, MH4, MH5, MH6 |
| 3 | 3.32k | WaCS:RES_TH_250mW | R4, R11, R24 |
| 3 | 47u | WaCS:Wurth_5p0x11p0 | C9, C10, C16 |
| 2 | 1000u | WaCS:UVY1H102MHD | C12, C15 |
| 2 | 100mil | WaCS:MH_100mil | MH7, MH8 |
| 2 | 130mil | WaCS:MH_130mil_NP | MH1, MH2 |
| 2 | 825 | WaCS:RES_TH_250mW | R16, R21 |
| 1 | 0.001u | WaCS:CAP_C320_KEM | C18 |
| 1 | 1.00k | WaCS:RES_TH_250mW | R14 |
| 1 | 10.0 | WaCS:RES_TH_250mW | R8 |
| 1 | 11.5k | WaCS:RES_TH_250mW | R23 |
| 1 | 110 | WaCS:RES_TH_250mW | R18 |
| 1 | 127k | WaCS:RES_TH_250mW | R6 |
| 1 | 19.6k | WaCS:RES_TH_250mW | R22 |
| 1 | 2.05k | WaCS:RES_TH_250mW | R17 |
| 1 | 2.49k | WaCS:RES_TH_250mW | R2 |
| 1 | 20 | WaCS:BOURNS_3386P | RV2 |
| 1 | 2N3904TFR | WaCS:TO-92 | Q1 |
| 1 | 3.01k | WaCS:RES_TH_250mW | R13 |
| 1 | 470p | WaCS:CAP_C315_KEM | C11 |
| 1 | 5k | WaCS:BOURNS_3386P | RV3 |
| 1 | TIP41C | WaCS:TO-220 | U1 |
| 1 | UA723CD | WaCS:SOIC-14 | U2 |
| 1 | ~ | WaCS:SN_100p | G2 |
| 1 | ~ | WaCS:WaCS_logo | G1 |
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Questions
How big is the WaCS-52KX R1 PCB?
It measures 177.8 × 107.9 mm and has 2 copper layers, 1.61 mm thick.
What parts does the WaCS-52KX R1 use?
113 parts, built around the TIP41C, UA723CD, RSMF1JT2R20 and C320C104K5R5TA. 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 WaCS-52KX R1 KiCad files?
From the dtatum7/WaCS-52KX repository on GitHub, at the commit this page was made from: the board is WaCS-52KX_R1.kicad_pcb and its schematic WaCS-52KX_R1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the WaCS-52KX R1 design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).