A tscircuit library and KiCad PCM URL for getting the top 100 JLC components in each popular category
Embedded Processors - MCUs are the core of most projects Power Management - Voltage regulators, DC-DC converters Connectors - USB-C, pin headers, JST Optoelectronics - LEDs, addressable LEDs Transistors - MOSFETs for switching IoT/Communication - WiFi/BT modules Sensors - Common sensors
Here are JLCPCB's main categories with component counts:
Category Components Popular For Connectors 1.67M USB-C, headers, JST, FFC Resistors 1.55M SMD resistors, arrays Capacitors 1M MLCCs, electrolytics Power Management (PMIC) 180K Regulators, DC-DC, battery mgmt Transistors/Thyristors 110K MOSFETs, BJTs, IGBTs Optoelectronics 83K LEDs, RGB, WS2812, photodiodes Embedded Processors 79K STM32, ESP32, RP2040, ATmega Sensors 40K Temperature, accelerometers, touch Relays 30K Signal, power relays Data Acquisition 25K ADCs, DACs RF and Wireless 21K Antennas, RF switches Motor Driver ICs 11K Stepper, BLDC drivers IoT/Communication 6K WiFi, Bluetooth, LoRa modules