{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ESP32-S2FN4R2","brand":"Espressif Systems","brandSlug":"espressif","productSlug":"ESP32-S2FN4R2","canonicalUrl":"https://icboms.com/espressif/ESP32-S2FN4R2","factsUrl":"https://icboms.com/api/mcp/products/ESP32-S2FN4R2","rawCanonicalId":null},"summary":{"shortDescription":"Espressif Systems ESP32-S2FN4R2, WiFi MCU, 2.4 GHz 802.11b/g/n, 150 Mbps data rate, 19.5 dBm TX power, -97 dBm sensitivity, 56-VFQFN exposed pad, Tape & Reel.","salesMarkdown":"## WiFi MCU with integrated memory and radio The ESP32-S2FN4R2 is a single-core WiFi microcontroller from the ESP32 series, built around the ESP32-S2 core. It integrates a 2.4 GHz radio supporting 802.11b/g/n at up to 150 Mbps, with a transmit power of 19.5 dBm and a receive sensitivity of -97 dBm — enough link budget for a reliable connection through a couple of interior walls in a typical home or light-industrial setting. On-chip memory comprises 128 kB ROM and 320 kB SRAM, which handles moderate application code and data buffers without an external memory chip for many IoT endpoints. The 56-VFQFN exposed-pad package (0.5 mm pitch) is hand-solderable with a fine-tip iron and a hot-air station — a maker-friendly footprint that also suits automated assembly. ## Supply, temperature, and interface set Serial interfaces include ADC, GPIO, I²C, I²S, SPI, PWM, UART, and USB, covering the common peripheral mix for sensor fusion, audio playback, display control, and wired debug. The USB interface doubles as a programming and serial-console port, eliminating the need for a separate USB-UART bridge on the board. Current draw is 63–68 mA in receive mode and 160–310 mA during transmit, depending on the output power setting. The 310 mA peak occurs at the 19.5 dBm max output — a 3.3 V rail feeding this part should budget at least 1.2 W for the radio burst, plus margin for the rest of the system.","metaTitle":"ESP32-S2FN4R2 Espressif WiFi MCU, 2.4 GHz, 150 Mbps","metaDescription":"ESP32-S2FN4R2 active-production WiFi MCU from Espressif. 2.4 GHz 802.11b/g/n, 150 Mbps, 19.5 dBm TX, -97 dBm RX sensitivity. 56-VFQFN. Quoted to order.","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","Data Rate":"150Mbps","Frequency":"2.4GHz","Modulation":"-","Memory Size":"128kB ROM, 320kB SRAM","Sensitivity":"-97dBm","Antenna Type":"Antenna Not Included","Mounting Type":"Surface Mount","Package / Case":"56-VFQFN Exposed Pad","Power - Output":"19.5dBm","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"2.8V ~ 3.6V","Serial Interfaces":"ADC, GPIO, I²C, I²S, SPI, PWM, UART, USB","RF Family/Standard":"WiFi","Utilized IC / Part":"ESP32-S2","Base Product Number":"ESP32-S2","Current - Receiving":"63mA ~ 68mA","Operating Temperature":"-40°C ~ 85°C","Current - Transmitting":"160mA ~ 310mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/92fe4188fcf3a38854815351cf9ef068.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the ESP32-S2FN4R2?","answer":"The ESP32-S2FN4R2 is a specific variant within the ESP32-S2 family. Pin-compatible siblings differ primarily in flash and PSRAM configuration — for example, the ESP32-S2FH4R2 adds embedded flash. The base footprint and ballout are shared across the family, so a board layout can often accommodate multiple memory options with a BOM change."},{"question":"What compliance documentation does Espressif provide for the ESP32-S2FN4R2?","answer":"Espressif provides RoHS and REACH compliance declarations for the ESP32-S2FN4R2. The part is lead-free and the 56-VFQFN package is halogen-free per the standard material declaration. UL and IEC certification documents are available on request through the supply chain."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/espressif/ESP32-S2FN4R2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/espressif/ESP32-S2FN4R2 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}}