{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ESP32-S2-WROOM-N4","brand":"Espressif Systems","brandSlug":"espressif","productSlug":"ESP32-S2-WROOM-N4","canonicalUrl":"https://icboms.com/espressif/ESP32-S2-WROOM-N4","factsUrl":"https://icboms.com/api/mcp/products/ESP32-S2-WROOM-N4","rawCanonicalId":null},"summary":{"shortDescription":"Espressif Systems ESP32-S2-WROOM-N4 Wi-Fi SoC module, 802.11b/g/n, 150Mbps, 2.4GHz, 19.5dBm TX power, -97dBm sensitivity, 56-VFQFN Exposed Pad, PCB trace antenna.","salesMarkdown":"## Wi-Fi link budget and RF parametric fit The ESP32-S2-WROOM-N4 delivers 19.5 dBm output power and -97 dBm receive sensitivity on 2.4 GHz 802.11b/g/n — a 116.5 dB link budget at 1 Mbps DSSS. At 150 Mbps MCS7 HT20 the sensitivity floor rises, but the TX power stays flat, so the range-limiting factor shifts to the receiver noise figure and antenna mismatch rather than the PA. Drawing 63-68 mA in receive and 160-310 mA in transmit (depending on output power), the module's current per link state is competitive for battery-powered IoT nodes that cycle between deep sleep and short burst transmissions. ## NRND — planning for production continuity Espressif lists the ESP32-S2-WROOM-N4 as NRND (Not Recommended for New Designs). New projects should evaluate the current-production ESP32-S2 family variants or the ESP32-S3 series for ongoing supply. The -40°C to 125°C operating range qualifies the module for industrial and outdoor enclosures where ambient temperature swings exceed commercial-grade limits. ## Memory, interfaces, and board integration 128 kB ROM and 320 kB SRAM on the ESP32-S2 core support lightweight TCP/IP stacks and application code without external RAM for many sensor-node workloads. Serial interfaces include ADC, I2C, I2S, SPI, PWM, and UART — enough peripheral set to connect sensors, displays, and audio codecs without a separate MCU. The 56-VFQFN exposed-pad package requires a thermal land pattern on the PCB to sink heat from the PA during sustained 19.5 dBm transmission.","metaTitle":"ESP32-S2-WROOM-N4 Espressif Wi-Fi SoC, 150Mbps, NRND","metaDescription":"Espressif ESP32-S2-WROOM-N4 Wi-Fi SoC module, 2.4GHz 802.11b/g/n, 150Mbps, -97dBm sensitivity, 19.5dBm TX, NRND lifecycle. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["RF & Wireless ICs"],"specifications":{"Mfr":"Espressif Systems","Series":"ESP32","Protocol":"802.11b/g/n","Data Rate":"150Mbps","Frequency":"2.4GHz","Packaging":"Tape & Reel (TR) Cut Tape (CT)","Modulation":"-","Memory Size":"128kB ROM, 320kB SRAM","Part Status":"Not For New Designs","Sensitivity":"-97dBm","Antenna Type":"PCB Trace","Mounting Type":"Surface Mount","Package / Case":"56-VFQFN Exposed Pad","Power - Output":"19.5dBm","lifecycle_stage":"eol_hot","Voltage - Supply":"2.8V ~ 3.6V","Serial Interfaces":"ADC, I2C, I2S, SPI, PWM, UART","RF Family/Standard":"WiFi","Utilized IC / Part":"ESP32-S2","Base Product Number":"ESP32-S2","Current - Receiving":"63mA ~ 68mA","Operating Temperature":"-40°C ~ 125°C","Current - Transmitting":"160mA ~ 310mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.0500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8e4d43713a360c3789d997eccf0f4645.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/espressif/ESP32-S2-WROOM-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-S2-WROOM-N4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T06:46:27.707Z","lastPublished":"2026-07-21T06:46:27.707Z","indexable":true}}