ESPRESSIF ESP32-C3-WROOM-02-N4

FAQ du produit

• 1. What ECCN Classification Applies to the ESP32-C3-WROOM-02-N4, and What Are the Key Sourcing Parameters on LCSC?
  The ESP32-C3-WROOM-02-N4 carries an ECCN classification of 5A992C, indicating it is subject to EAR export controls as a mass-market wireless device. On LCSC (C2934560), the part is available with no minimum order restriction (1 piece minimum) and is sold in multiples of 1. Standard reel packaging is 650 pieces. With 4,514 units in stock for immediate shipment, it is accessible for prototype through medium-volume production.
• 2. What Is the Physical Package of the ESP32-C3-WROOM-02-N4, and Is It Suitable for Automated SMT Pick-and-Place Assembly?
  The ESP32-C3-WROOM-02-N4 uses a VFQFN-32-EP package — a castellated SMD module with exposed pads. It is designed for standard SMT assembly and is compatible with automated pick-and-place equipment. The module ships in tape-and-reel format with a standard packaging of 650 pieces per full reel, facilitating high-volume automated production. The minimum order quantity on LCSC is 1 piece, with volume pricing from $3.0674 (1+) down to $2.094 (1,300+).
• 3. Does the ESP32-C3-WROOM-02-N4 Use an Onboard Antenna or Require an External Antenna, and What Receive Sensitivity Does It Achieve?
  The ESP32-C3-WROOM-02-N4 incorporates an on-board PCB antenna, eliminating the need for an external antenna in most designs. The module achieves a receive sensitivity of -105dBm at 2.4GHz, enabling reliable communication in typical wireless IoT deployments. The integrated antenna is designed for omni-directional coverage and is tuned for the 2.4GHz ISM band supporting both Wi-Fi 802.11b/g/n and Bluetooth 5 LE operation.
• 4. How Much Flash Memory Does the N4 Variant of the ESP32-C3-WROOM-02 Contain, and What Does the Naming Suffix Indicate?
  The N4 in the part number ESP32-C3-WROOM-02-N4 designates 4MB of embedded SPI flash memory. This naming convention is standard across Espressif WROOM modules: N indicates flash (SPI NOR), and the numeral indicates megabytes. The ESP32-C3 SoC itself contains no external PSRAM in this variant. For applications requiring more onboard storage, alternate variants with larger flash are available in the ESP32-C3-WROOM-02 family.
• 5. What Wireless Protocols and RF Performance Does the ESP32-C3-WROOM-02-N4 Support?
  The ESP32-C3-WROOM-02-N4 is a 2.4GHz Wi-Fi and Bluetooth module based on the ESP32-C3 chip. It supports IEEE 802.11b/g/n Wi-Fi and Bluetooth 5 (LE). The module integrates an on-board PCB antenna and achieves a receive sensitivity of -105dBm. The package is VFQFN-32-EP, and the module is RoHS compliant. This combination of Wi-Fi and BLE in a compact form factor suits IoT, industrial, and consumer wireless applications.