{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FX3U-USB-DB","brand":"Mitsubishi Electric","brandSlug":"mitsubishi","productSlug":"FX3U-USB-DB","canonicalUrl":"https://aoctrl.com/mitsubishi/FX3U-USB-DB","factsUrl":"https://aoctrl.com/api/mcp/products/FX3U-USB-DB","rawCanonicalId":null},"summary":{"shortDescription":"Mitsubishi FX3U-USB-DB USB Communication Function Expansion Board, Mini-B plug female, baud rates 9600–115200 bps, photocoupler isolation, 15 mA at 5 VDC.","salesMarkdown":"The FX3U-USB-DB is a USB communication expansion board for the Mitsubishi FX3U PLC series, model FX3U-USB-BD. It adds a USB Mini-B port to the CPU, supporting baud rates from 9600 up to 115200 bps for programming or data exchange with a PC. Photocoupler isolation between the communication line and the CPU protects the PLC logic from ground loops and transients on the USB cable — a common failure point when connecting a laptop to a live panel. Power draw is 15 mA at 5 VDC when powered from the PLC internal supply, or 30 mA at 5 VDC when bus-powered from the PC's USB connector. The board complies with USB 2.0 full-speed standard. Dimensions are 4.61 cm x 1.96 cm x 5.35 cm — it mounts directly into the FX3U CPU's expansion slot without additional DIN rail space. The Mini-B connector is recessed; verify cable clearance if the PLC is in a tight enclosure.","metaTitle":"Mitsubishi FX3U-USB-DB USB Communication Expansion Board, Mi","metaDescription":"Mitsubishi FX3U-USB-DB USB communication expansion board for FX3U PLC series. Mini-B port, baud rates 9600–115200 bps, photocoupler isolation. Mature lifecycle, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"Port":"USB (Mini-B plug female)","Model No":"FX3U-USB-BD","Baud Rate":"9600/19200/38400/57600/115200 bps","Isolation":"Photocoupler isolation (Between communication line and CPU)","Model Type":"USB Communication Function Expansion Board","Manufacturer":"Mitsubishi Electric","Shipping Weight":"2 Kg","lifecycle_stage":"mature","Current consumption":"15mA / 5V DC (5V DC power is supplied from the internal power supply of PLC), 30mA / 5V DC (5V DC power is supplied from the USB connector of personal computer)","Estimated Lead Time":"Usually ships in 1 - 10 working days..","Transmission standard":"USB2.0 (For full speed)","Dimensions (HxWxD), approx":"4.61cm x 1.96cm x 5.35cm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$98.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ce2272d8a7c77362b220e58317d8e4ca.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/FX3U-USB-DB/alternatives.json"},"ai":{"faq":[{"question":"What is the port type on the FX3U-USB-DB?","answer":"The port is a USB Mini-B plug female connector."},{"question":"What baud rates does the FX3U-USB-DB support?","answer":"It supports 9600, 19200, 38400, 57600, and 115200 bps."},{"question":"Does the FX3U-USB-DB provide isolation?","answer":"Yes, photocoupler isolation is provided between the communication line and the CPU."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/mitsubishi/FX3U-USB-DB","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/mitsubishi/FX3U-USB-DB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}