2 layers50 × 50 mm
Open Battery Charger
DavidVeloz95/Open-Source-Battery-Smart-Charger
Embedded power electronics project: intelligent 2S Li-Ion charger with protection, power switching and monitoring, designed in KiCad.
47 partsMIT
2 layers50.8 × 33 mm
Crimpdeq Alt
florentdenis/Crimpdeq-Alt- Size
- 50.8 × 33 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 69
- Nets
- 78
- Pads
- 257
- Tracks, vias
- 334, 75
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 16 Jul 2025
- Updated
- 6 Aug 2025
Overview
Crimpdeq Alt is an open-source printed circuit board by florentdenis, from the florentdenis/Crimpdeq-Alt repository on GitHub. It is a 2-layer board of 50.8 × 33 mm with 69 parts on 78 nets, routed with 334 tracks and 75 vias.
It is built around the ESP32-C3-MINI-1, AD7124-4BCPZ and MAX77533AEWC+T, with the SMCJ5.0CA/TR13, SS1040_R1_00001 and USB4105-GF-A among its other parts. Its parts include 26 capacitors, 19 resistors, 7 diodes, 4 ICs and 3 connectors. It belongs with the ESP32 and RISC-V boards of this library.
Main components
6ESP32-C3-MINI-1
--40℃~+81℃ -89dBm 2.4GHz 350mA 3V~3.6V 82mA ESP32-C3 Chip On-board PCB Antenna UART - WiFi Modules ROHSRF CrazyWiFi Modules
AD7124-4BCPZ
LFCSP-32(5x5)-40℃~+125℃ 19.2kHz 2.7V~3.6V 24 4 614.4kHz 930uA Auto calibration、Built-in temperature sensor、Multiplexers、Synchronous triggering Built-in Built-in SPI Sigma-Delta Support Yes LFCSP-32(5x5) Analog to Digital Converters (ADC) ROHSAnalog DevicesAnalog To Digital Converters (ADCs)
MAX77533AEWC+T
WLP-12(1.4x1.8)Built-in LDO regulator、Overcurrent Protection、Operating status indication、Adjustable current limiting、Light load efficient mode、Output discharge、Adjustable soft-start、Hiccup current limiting、Cycle-by-cycle current limiting WLP-12(1.4x1.8) DC-DC Converters ROHSMaxim Integrated (Analog Devices)Power Management - Specialized
SMCJ5.0CA/TR13
SMC(DO-214AB)-65℃~+150℃ 1.5kW@10/1000us 163A@10/1000us 5V 7V 800uA 9.2V Bidirectional TVS SMC(DO-214AB) ESD and Surge Protection (TVS/ESD) ROHSBrightkingESD And Surge Protection (TVS/ESD)
SS1040_R1_00001
SOD-123-55℃~+125℃ 1 Independent 1A 30A 40V 50uA@40V 550mV@1A SOD-123 Schottky Diodes ROHSPANJIT InternationalSchottky Diodes
USB4105-GF-A
SMD-40℃~+85℃ 1 12P 48V 5A Black Female Surface Mount, Right Angle Type-C USB 2.0 SMD USB Connectors ROHSGlobal Connector Technology (GCT)USB Connectors
Parts
69| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100nF 10V | Capacitor_SMD:C_0402_1005Metric | C9, C23, C26, C27, C41 |
| 5 | 10kR 1% | Resistor_SMD:R_0402_1005Metric | R8, R13, R16, R19, R20 |
| 4 | 1kR 1% | Resistor_SMD:R_0402_1005Metric | R14, R15, R18, R25 |
| 4 | 22uF 10V | Capacitor_SMD:C_0603_1608Metric | C15, C18, C19, C20 |
| 3 | 100pF 25V | Capacitor_SMD:C_0402_1005Metric | C21, C24, C25 |
| 3 | 1uF 10V | Capacitor_SMD:C_0402_1005Metric | C8, C10, C32 |
| 3 | 2.2uF 10V | Capacitor_SMD:C_0402_1005Metric | C17, C28, C30 |
| 3 | SMCJ5.0CA/TR13 | Diode_SMD:D_SOD-523 | D7, D8, D9 |
| 2 | 0R 1% | Resistor_SMD:R_0402_1005Metric | R5, R7 |
| 2 | 5k1R 1% | Resistor_SMD:R_0402_1005Metric | R4, R6 |
| 2 | DNP | Capacitor_SMD:C_0402_1005Metric | C12, C13 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D2, D3 |
| 2 | SW_Push | Button_Switch_SMD:SW_SPST_PTS645 | SW1, SW2 |
| 1 | 0.22uF 10V | Capacitor_SMD:C_0402_1005Metric | C16 |
| 1 | 0R 1% | Resistor_SMD:R_1210_3225Metric_Pad1.30x2.65mm_HandSolder | R21 |
| 1 | 100kR 1% | Resistor_SMD:R_0402_1005Metric | R11 |
| 1 | 100uF | Capacitor_SMD:C_1206_3216Metric | C1 |
| 1 | 10nF 10V | Capacitor_SMD:C_0402_1005Metric | C11 |
| 1 | 1nF 10V | Capacitor_SMD:C_0402_1005Metric | C14 |
| 1 | 2.2uF 16V | Capacitor_SMD:C_0402_1005Metric | C29 |
| 1 | 274kR 1% | Resistor_SMD:R_0402_1005Metric | R17 |
| 1 | 3.24kR 1% | Resistor_SMD:R_0402_1005Metric | R9 |
| 1 | 32.768Hz | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y1 |
| 1 | 4.7u 2A | 74479320165247:74479320165247 | L1 |
| 1 | 4.7uF 10V | Capacitor_SMD:C_0402_1005Metric | C22 |
| 1 | 470R 1% | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | AD7124-4BCPZ | AD7124-4:CP_32_12_ADI | U1 |
| 1 | DNP | Resistor_SMD:R_0402_1005Metric | R12 |
| 1 | ESP32-C3-MINI-1 | ESP32-V3-MINI-1-N4:ESP32-C3-MINI-1_EXP | U3 |
| 1 | G*** | kibuzzard-61F26841 | kibuzzard-61F26841 |
| 1 | G*** | kibuzzard-623DAB98 | kibuzzard-623DAB98 |
| 1 | G*** | kibuzzard-61F26855 | kibuzzard-61F26855 |
| 1 | G*** | kibuzzard-61F2685B | kibuzzard-61F2685B |
| 1 | G*** | kibuzzard-61E1AB2E | kibuzzard-61E1AB2E |
| 1 | G*** | kibuzzard-6269032F | kibuzzard-6269032F |
| 1 | LTC4063EDD-PBF | LTC4063:DFN-10_DD_LIT | U2 |
| 1 | MAX77533AEWC+ | MAX77533:21-100250A_W121A1&plus_3_MXM | U9 |
| 1 | S2B-PH-K-SLFSN | S2B-PH-K-S:CONN_S2B-PH-K-S_JST | J2 |
| 1 | S4B-ZR-3.4_LF__SN_ | S4B-ZR-3.4_LF__SN_:S4BZR34LFSN | J3 |
| 1 | SS1040_R1_00001 | Diode_SMD:D_SOD-123 | D6 |
| 1 | SZESD5Z3.3T1G | Diode_SMD:D_SOD-523 | D1 |
| 1 | USB4105-GF-A | Rust_Board:GCT_USB4105-GF-A | J1 |
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Questions
How big is the Crimpdeq Alt PCB?
It measures 50.8 × 33 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Crimpdeq Alt use?
69 parts, built around the ESP32-C3-MINI-1, AD7124-4BCPZ, MAX77533AEWC+T and SMCJ5.0CA/TR13. 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 Crimpdeq Alt KiCad files?
From the florentdenis/Crimpdeq-Alt repository on GitHub, at the commit this page was made from: the board is hardware/pcb/crimpdeq_alt/crimpdeq_alt.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Crimpdeq Alt design in my own project?
Its repository states no licence, so its author keeps all rights: ask florentdenis before reusing the design.