{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ESP32-MINI-1U-N4","brand":"Espressif Systems","brandSlug":"espressif","productSlug":"ESP32-MINI-1U-N4","canonicalUrl":"https://icboms.com/espressif/ESP32-MINI-1U-N4","factsUrl":"https://icboms.com/api/mcp/products/ESP32-MINI-1U-N4","rawCanonicalId":null},"summary":{"shortDescription":"Espressif Systems ESP32 series, 802.11b/g/n + Bluetooth v4.2 +EDR module, 2.4 GHz, 150 Mbps, 4MB Flash, 536KB SRAM, U.FL antenna, 55-SMD module, -40 to 85°C.","salesMarkdown":"## Module identity and wireless parametric base The ESP32-MINI-1U-N4 is a compact 55-SMD module built around the ESP32-U4WDH IC, integrating a 2.4 GHz radio that supports 802.11b/g/n Wi-Fi at up to 150 Mbps and Bluetooth v4.2 +EDR with Class 1, 2 and 3 output. On-chip memory totals 4 MB flash, 448 kB ROM, and 536 kB SRAM — enough to hold a full Wi-Fi stack and application code without external storage for many IoT endpoints. ## Antenna interface and RF performance This variant ships without an onboard PCB antenna; instead it provides a U.FL connector for an external antenna, giving the integrator control over the antenna gain pattern and placement. The conducted output power is rated at 19.5 dBm and the receive sensitivity reaches -97 dBm, delivering link budget for indoor range up to several hundred metres depending on the antenna and environment. Modulation includes 8DPSK and DQPSK for Bluetooth, with the full OFDM/CCK set for Wi-Fi. The module draws 112-118 mA in receive and 260-379 mA during transmit, so the supply rail and thermal design should budget for the transmit peak at 3.6 V. ## Supply, temperature, and serial interfaces Serial interfaces include ADC, GPIO, I²C, I²S, SDIO, SPI, PWM, and UART, covering the common peripheral mix for sensor nodes, smart-home bridges, and data loggers. The 55-SMD land pattern is a castellated-edge module that reflows with standard lead-free profiles.","metaTitle":"ESP32-MINI-1U-N4 Espressif Systems WiFi/BT Module, 4MB Flash","metaDescription":"ESP32-MINI-1U-N4: 2.4 GHz 802.11b/g/n + BT v4.2 module, 4MB flash, 536KB SRAM, U.FL antenna, -40 to 85°C. Active production, sourced 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, Bluetooth v4.2 +EDR, Class 1, 2 and 3","Data Rate":"150Mbps","Frequency":"2.4GHz","Modulation":"8DPSK, DQPSK","Memory Size":"4MB Flash, 448kB ROM, 536kB SRAM","Sensitivity":"-97dBm","Antenna Type":"Antenna Not Included, U.FL","Mounting Type":"Surface Mount","Package / Case":"55-SMD Module","Power - Output":"19.5dBm","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 3.6V","Serial Interfaces":"ADC, GPIO, I²C, I²S, SDIO, SPI, PWM, UART","RF Family/Standard":"Bluetooth, WiFi","Utilized IC / Part":"ESP32-U4WDH","Base Product Number":"ESP32","Current - Receiving":"112mA ~ 118mA","Operating Temperature":"-40°C ~ 85°C (TA)","Current - Transmitting":"260mA ~ 379mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.3000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a186d96780983a433664f9f67b8113f8.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ESP32-MINI-1U-N4/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the ESP32-MINI-1U-N4 in the ESP32 family?","answer":"Within the same ESP32 series, the ESP32-MINI-1 (with onboard PCB antenna) and the ESP32-MINI-1U (with U.FL connector but different flash size) share the same 55-SMD footprint and pinout. The key difference is the antenna interface and flash memory size — the -N4 variant holds 4 MB flash."},{"question":"What compliance documentation does Espressif provide for the ESP32-MINI-1U-N4?","answer":"Espressif Systems provides RoHS and REACH compliance declarations for the ESP32-MINI-1U-N4. The module carries FCC/CE/IC certification as part of the ESP32 reference design. Specific certification reports are available through the Espressif documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/espressif/ESP32-MINI-1U-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-MINI-1U-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}}