{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ESP32-C3-WROOM-02-N4","brand":"Espressif Systems","brandSlug":"espressif","productSlug":"ESP32-C3-WROOM-02-N4","canonicalUrl":"https://icboms.com/espressif/ESP32-C3-WROOM-02-N4","factsUrl":"https://icboms.com/api/mcp/products/ESP32-C3-WROOM-02-N4","rawCanonicalId":null},"summary":{"shortDescription":"Espressif Systems ESP32 series, ESP32-C3-WROOM-02-N4 module, 2.4GHz 802.11b/g/n + Bluetooth v5.0, 150Mbps data rate, 4MB flash, 400kB SRAM, 384kB ROM, PCB trace antenna, 19-SMD module, -40°C to 85°C operating range.","salesMarkdown":"## Module identity and wireless capability The ESP32-C3-WROOM-02-N4 is an Espressif Systems surface-mount module built around the ESP32-C3 chip. It integrates a 2.4GHz radio supporting 802.11b/g/n Wi-Fi and Bluetooth v5.0, with a rated data rate of 150Mbps. ## Memory resources and application headroom With 4MB flash, 400kB SRAM, and 384kB ROM, the module supports complex application code and data buffering typical of IoT edge nodes, sensor hubs, and BLE gateways. ## Environmental and supply voltage tolerance The supply voltage range of 3V to 3.6V aligns with standard 3.3V rails, simplifying power design. ## Interface and debug connectivity Serial interfaces include GPIO, I²C, I²S, SPI, JTAG, UART, and USB, covering sensor readout, display driving, and debug access without external bridge chips. ## Transmit power and receive sensitivity The module delivers 20.5dBm transmit power and -105dBm receive sensitivity, providing a solid link budget for range extension in obstructed environments.","metaTitle":"ESP32-C3-WROOM-02-N4 – Espressif Systems RF Module","metaDescription":"ESP32-C3-WROOM-02-N4: 4MB flash, 400kB SRAM, 2.4GHz 802.11b/g/n + Bluetooth v5.0, 20.5dBm Tx power, -40°C to 85°C. Active production, order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF & Wireless ICs"],"specifications":{"Mfr":"Espressif Systems","Series":"ESP32","Package":"Tape & Reel (TR) Cut Tape (CT)","Protocol":"802.11b/g/n, Bluetooth v5.0","Data Rate":"150Mbps","Frequency":"2.4GHz","Modulation":"-","Memory Size":"4MB Flash, 400kB SRAM, 384kB ROM","Sensitivity":"-105dBm","Antenna Type":"PCB Trace","Mounting Type":"Surface Mount","Package / Case":"19-SMD Module","Power - Output":"20.5dBm","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 3.6V","Serial Interfaces":"GPIO, I²C, I²S, SPI, JTAG, UART, USB","RF Family/Standard":"Bluetooth, WiFi","Utilized IC / Part":"ESP32-C3","Current - Receiving":"82mA ~ 84mA","Operating Temperature":"-40°C ~ 85°C (TA)","Current - Transmitting":"280mA ~ 345mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.9000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e3dd947528135348ad64f77663604575.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ESP32-C3-WROOM-02-N4/alternatives.json"},"ai":{"faq":[{"question":"Does ESP32-C3-WROOM-02-N4 support Bluetooth 5.0?","answer":"Yes, the module supports Bluetooth v5.0 alongside 802.11b/g/n Wi-Fi."},{"question":"What is the difference between ESP32-C3-WROOM-02 and ESP32-C3-WROOM-02-N4?","answer":"The -N4 suffix indicates the module variant with 4MB flash memory. The base ESP32-C3-WROOM-02 typically ships with 4MB flash as well, but the -N4 designation is used by Espressif to denote the specific flash density. Confirm the exact flash size from the module marking for your BOM."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/espressif/ESP32-C3-WROOM-02-N4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/espressif/ESP32-C3-WROOM-02-N4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}