

A pcb to turn on some led to attract moth for study
- Size
- 32.5 × 33.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 40
- Nets
- 26
- Pads
- 103
- Tracks, vias
- 161, 29
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 10 Feb 2026
- Updated
- 31 Mar 2026
Overview
Moth is an open-source printed circuit board by RoyBellingan, from the RoyBellingan/mothPCB repository on GitHub. It is a 2-layer board of 32.5 × 33.8 mm with 40 parts on 26 nets, routed with 161 tracks and 29 vias.
It is built around the LGS63030EP, JNJ-LTAU0106W90/Q15MIL/365-370NM and LM393, with the 0402WGF2003, 0402WGF5101 and CL05B104KO5NNN among its other parts. Its parts include 18 resistors, 5 ICs, 4 capacitors, 1 diode and 1 connector.
Main components
9LGS63030EP
ESOP-8-40℃~+125℃ 1 1.2MHz 3% 3V~60V 3V~60V Analog、PWM Boost Built-in DC-DC Under Voltage Protection、Over Voltage Protection、Over Current Protection、Over-Temperature Protection (OTP) ESOP-8 LED Drivers ROHSLegend-SiLED DriversJNJ-LTAU0106W90/Q15MIL/365-370NM
SMD2835-2PLED Indication - DiscreteJNJ OPTOELECTRONICSLM393
SOP-8-16V~16V 0℃~+70℃ 2 2.5mA 250nA 2V~36V 36V 5mV 5nA Fail-safe function Open-drain SOP-8 Comparators ROHSMSKSEMIComparators0402WGF2003
0402-55℃~+155℃ 200kΩ 50V 62.5mW Thick Film Resistor ±1% ±100ppm/℃ 0402 Chip Resistor - Surface Mount ROHSUNI-ROYALChip Resistor - Surface Mount0402WGF5101
0402-55℃~+155℃ 5.1kΩ 50V 62.5mW Thick Film Resistor ±1% ±100ppm/℃ 0402 Chip Resistor - Surface Mount ROHSUNI-ROYALChip Resistor - Surface MountCL05B104KO5NNN
0402100nF 16V X7R ±10% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMTTYPE-C 16PIN 2MD(073)
SMD-25℃~+85℃ 1 10 thousand cycles 16P 3A 5V Black Female Surface Mount, Right Angle Type-C SMD USB Connectors ROHSSHOU HANUSB ConnectorsGL5528(10-20)
插件,P=3.4mm-30℃~+70℃ 0.65 150V 1MΩ 2.4mm 3.4mm 4.3mm 5.1mm 540nm 8kΩ~20kΩ 插件,P=3.4mm Photoresistors ROHSJCHLPhotoresistorsSS14
SMA(DO-214AC)-55℃~+150℃ 1A 25A 300uA@40V 40V 550mV@1A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
Parts
40| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 6.2k | Resistor_SMD:R_0603_1608Metric | R2, R6, R13, R17 |
| 4 | TestPoint | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | 5V1, FB1, GND1, Test1 |
| 3 | 10 | Resistor_SMD:R_0603_1608Metric | R3, R4, R5 |
| 3 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C1, C2, C3 |
| 3 | JNJ-LTAU0106W90/Q15MIL/365-370NM | EasyEDA:LED-SMD_L3.5-W2.8-FD_GREEN-1 | U2, U3, U4 |
| 3 | MountingHole | MountingHole:ToolingHole_1.152mm | H1, H2, H3 |
| 2 | 2MΩ | Resistor_SMD:R_0603_1608Metric | R14, R15 |
| 2 | 82kΩ | Resistor_SMD:R_0603_1608Metric | R1, R18 |
| 2 | C25764 | Resistor_SMD:R_0402_1005Metric | R10, R11 |
| 2 | C25905 | Resistor_SMD:R_0402_1005Metric | R8, R9 |
| 1 | 0Ω | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R12 |
| 1 | 100K | Potentiometer_THT:Potentiometer_Bourns_3339S_Horizontal | RV1 |
| 1 | 4.7uH | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | 47kΩ | Resistor_SMD:R_0402_1005Metric | R16 |
| 1 | C1525 | Capacitor_SMD:C_0402_1005Metric | C23 |
| 1 | C2765186 | Connector_USB:USB_C_Receptacle_G-Switch_GT-USB-7010ASV | J1 |
| 1 | GL5528(10-20) | EasyEDA:RES-TH_L5.1-W4.3-P3.40-D0.5 | R7 |
| 1 | Jumper_2_Bridged | TestPoint:TestPoint_2Pads_Pitch2.54mm_Drill0.8mm | En1 |
| 1 | LGS63030 | EasyEDA:SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR | U1 |
| 1 | LM393 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U5 |
| 1 | SS14 | Diode_SMD:D_SMA | D1 |
| 1 | TestPoint | Connector_PinHeader_1.27mm:PinHeader_1x01_P1.27mm_Vertical | NH1 |
Questions
How big is the Moth PCB?
It measures 32.5 × 33.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Moth use?
40 parts, built around the LGS63030EP, JNJ-LTAU0106W90/Q15MIL/365-370NM, LM393 and 0402WGF2003. 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 Moth KiCad files?
From the RoyBellingan/mothPCB repository on GitHub, at the commit this page was made from: the board is Moth.kicad_pcb and its schematic Moth.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Moth design in my own project?
Its repository states no licence, so its author keeps all rights: ask RoyBellingan before reusing the design.
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