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rajeev2705
Welcome to my PCB projects repository! This space is dedicated to documenting my journey in designing, creating, and improving printed circuit boards (PCBs). Here, I share various PCB projects, including schematics, layouts, bill of materials (BOM), and relevant documentation.
| Reference | Value | Description |
|---|---|---|
| Q1 | NPN | Bipolar transistor symbol for simulation only, substrate tied to the emitter |
| U1 | PC817 | DC Optocoupler, Vce 35V, CTR 50-300%, DIP-4 |
| U2 | TP4056-42-ESOP8 | |
| U3 | ESP32-C3-WROOM-02 | 802.11 b/g/n WiFi and Bluetooth 5 module, ESP32C3 SoC, RISCV microprocessor, On-board antenna |
| U4 | MT3608 | High Efficiency 1.2MHz 2A Step Up Converter, 2-24V Vin, 28V Vout, 4A current limit, 1.2MHz, SOT23-6 |
| U5 | AMS1117-3.3 |
| 1A Low Dropout regulator, positive, 3.3V fixed output, SOT-223 |
| 5.1k1 | R | resistor |
|---|
| B-1 | B- | test point |
|---|
| B-2 | B+ | test point |
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| C1,C2,C5 | 22uf | Unpolarized capacitor |
|---|
| C3,C7 | 0.1uf | Unpolarized capacitor |
|---|
| C4,C8,C9,C12,C13 | 47uf | Unpolarized capacitor |
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| C6,C10,C11,C14 | 10uf | Unpolarized capacitor |
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| D1,D4 | SS14 | SMA Schottky diode, 40V, 1A, Alternate KiCAD Library |
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| D2 | SMF05CT | SOT-363 TVS Diode array, 5xUnidirectional, 5V, 100W, Alternate KiCAD Library |
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| D3 | ss34 | 20V 1A Schottky Barrier Rectifier Diode, SMA(DO-214AC) |
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| J1 | USB_C_Receptacle_USB2.0_16P | USB 2.0-only 16P Type-C Receptacle connector |
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| J2 | Conn_01x03_Socket | Generic connector, single row, 01x03, script generated |
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| K1 | RAYEX-L90S | Power relay, Without Common Terminal between coil terminals, SPDT, 30A |
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| L1 | 22uH | Inductor, small symbol |
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| R1,R3 | 100R | resistor |
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| R2 | 5.1k | resistor |
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| R4,R5,R8,R9 | 10K | resistor |
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| R6 | 10k | Resistor |
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| R7 | 2k | Resistor |
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| R10 | 88k | Resistor |
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| R11 | 12k | Resistor |
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| SW1 | SW_SPST | Single Pole Single Throw (SPST) switch |
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