2 layers70 × 53 mm
4 layers28 × 70 mm
Eprinter
tact1m4n3/eprinter- Size
- 28 × 70 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 61
- Nets
- 55
- Pads
- 215
- Tracks, vias
- 392, 61
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 27 Sep 2026
- Updated
- 6 Nov 2026
Overview
Eprinter is an open-source printed circuit board by tact1m4n3, from the tact1m4n3/eprinter repository on GitHub, published under the MIT licence. It is a 4-layer board of 28 × 70 mm with 61 parts on 55 nets, routed with 392 tracks and 61 vias.
It is built around the ESP32-C3-WROOM-02-H4, TPS63802DLAR and LM66100DCK, with the MBR0530, AFC07-S24FCC-00 and BAT54J among its other parts. Its parts include 24 resistors, 18 capacitors, 6 diodes, 4 ICs and 3 connectors. It belongs with the ESP32 and RISC-V boards of this library.
Main components
9
ESP32-C3-WROOM-02-H4
SMD,20x18mm-105dBm -40℃~+105℃ 2.4GHz 20.5dBm 345mA 3V~3.6V 82mA Bluetooth5.0 ESP32-C3 On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,20x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
TPS63802DLAR
VSON-10(2x3)-40℃~+125℃@(TJ) 1 1.3V~5.5V 1.4MHz、1.6MHz、2.1MHz 1.8V~5.2V 11uA 2A Adjustable Buck-Boost Buck-Boost Built-in Yes VSON-10(2x3) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
LM66100DCK
SC-70-6-40℃~+125℃ 1 1.5A 1.5V~5.5V 150nA 95mΩ Integrated FET Reverse current blocking、Reverse polarity protection、With enable SC-70-6 ORing Controllers ROHSTexas InstrumentsPower Distribution Switches
MBR0530
SOD-1231 Independent 30V 5.5A 500mA 550mV@500mA 80uA@30V SOD-123 Schottky Diodes ROHSJiangsu Changjing Electronics Technology (CJ)Schottky Diodes
AFC07-S24FCC-00
SMD,P=0.5mm,卧贴-25℃~+85℃ 0.3mm 0.5mm 24P 2mm 400mA 50V Bottom Contact Phosphor bronze Slide Lock Surface Mount, Right Angle Tin SMD,P=0.5mm,卧贴 FFC, FPC (Flat Flexible) Connector Assemblies ROHSJSFFC, FPC (Flat Flexible) Connector Assemblies
BAT54J
SOD-323F1 Independent 200mA 2uA@25V 30V 600mA 800mV@100mA SOD-323F Schottky Diodes ROHSNexperiaSchottky DiodesPMEG2010EJ
SOD-323F1 Independent 1A 200uA@20V 20V 500mV@1A 9A SOD-323F Schottky Diodes ROHSNexperiaSchottky Diodes
SI1308EDL
SC-70-3-55℃~+150℃ 1 N-channel 1.4nC@10V 1.5A 1.5V 105pF 11pF 132mΩ@10V 23pF 30V 400mW N-Channel SOT-323 MOSFETs ROHSVishay IntertechnologyMOSFETs
SI2301
SOT-23-3L-55℃~+150℃ 1 P-Channel 1.5V 120mΩ@4.5V 2.2A 200pF 20V 700mW 80pF P-Channel ±10V SOT-23 MOSFETs ROHSYONGYUTAIMOSFETs
Parts
61| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 10u | Capacitor_SMD:C_0805_2012Metric | C2, C5, C7, C9, C11, C12, C13, C14, C16 |
| 5 | 10k | Resistor_SMD:R_0603_1608Metric | R3, R6, R8, R12, R24 |
| 5 | 1u | Capacitor_SMD:C_0603_1608Metric | C3, C8, C15, C17, C18 |
| 4 | 4.7M | Resistor_SMD:R_0603_1608Metric | R10, R14, R18, R23 |
| 3 | 1M | Resistor_SMD:R_0603_1608Metric | R11, R15, R16 |
| 3 | 510k | Resistor_SMD:R_0603_1608Metric | R19, R20, R21 |
| 3 | MBR0530 | Diode_SMD:D_SOD-123 | D4, D5, D6 |
| 2 | 100n | Capacitor_SMD:C_0603_1608Metric | C4, C6 |
| 2 | 22 | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R4, R7 |
| 2 | SW_PUSH | eprinter:SW-SMD_L3.9-W3.0-P4.45 | SW1, SW2 |
| 1 | 0.1 | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | 0.47 | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | 0.47u | Inductor_SMD:L_1210_3225Metric | L2 |
| 1 | 10uH/1A | eprinter:IND-SMD_L4.0-W4.0 | L1 |
| 1 | 22u | Capacitor_SMD:C_0805_2012Metric | C10 |
| 1 | 470 | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 5F/5.5V | eprinter:THT_SUPERCAP | C1 |
| 1 | 680k | Resistor_SMD:R_0603_1608Metric | R17 |
| 1 | 91k | Resistor_SMD:R_0603_1608Metric | R22 |
| 1 | AFC07-S24FCC-00 | eprinter:FPC-SMD_AFC07-S24FCC-00 | J2 |
| 1 | ATL431BIDBZR | Package_TO_SOT_SMD:SOT-23-3 | U6 |
| 1 | BAT54J | Diode_SMD:D_SOD-323F | D1 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | ESP32-C3-WROOM-02 | RF_Module:ESP32-C3-WROOM-02 | U1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | LM66100DCK | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U3 |
| 1 | PMEG2010EJ | Diode_SMD:D_SOD-323F | D3 |
| 1 | Si1308EDL | Package_TO_SOT_SMD:SOT-323_SC-70 | Q2 |
| 1 | Si2301 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | TPS63802DLAR | eprinter:VSON-10_L3.0-W2.0-P0.50-TL | U2 |
| 1 | USB_C_Receptacle_USB2.0_16P | eprinter:USB-C_SMD-TYPE-C-31-M-12_1 | J1 |
Questions
How big is the Eprinter PCB?
It measures 28 × 70 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Eprinter use?
61 parts, built around the ESP32-C3-WROOM-02-H4, TPS63802DLAR, LM66100DCK and MBR0530. 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 Eprinter KiCad files?
From the tact1m4n3/eprinter repository on GitHub, at the commit this page was made from: the board is pcb/eprinter.kicad_pcb and its schematic pcb/eprinter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Eprinter 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).
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