{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FX3U-16MT/DSS","brand":"Mitsubishi Electric","brandSlug":"mitsubishi","productSlug":"FX3U-16MT-DSS","canonicalUrl":"https://aoctrl.com/mitsubishi/FX3U-16MT-DSS","factsUrl":"https://aoctrl.com/api/mcp/products/FX3U-16MT%2FDSS","rawCanonicalId":null},"summary":{"shortDescription":"Mitsubishi MELSEC-F FX3U-16MT/DSS compact PLC base unit, DC 24 V, 8 digital inputs, 8 transistor source outputs, 64K step program memory, expandable.","salesMarkdown":"This FX3U-16MT/DSS is a MELSEC-F series base unit with 8 integrated digital inputs and 8 transistor source outputs, running on a 24 VDC supply. Program memory is 64K steps in RAM, backed by a buffer battery. The unit is expandable to 256 local I/O points or 384 local plus remote I/O. Cycle time for a basic LD instruction is 65 ns, and for MOV is 642 ns, making it suitable for high-speed sequence control. The USB port is optional; an RS-422 port is standard for programming and networking. Power consumption is 25 W, ambient temperature range 0 to 55 °C, enclosure protection IP10. This FX3U-16MT/DSS is in the mature stage of its lifecycle. It remains available through standard distribution; lead time is estimated at 1–10 working days. Sourcing is confirmed via RFQ, and the part can be specified into existing BOM lines without obsolescence concerns. For new system designs, Mitsubishi's iQ-F series (e.g., FX5U) offers a more current platform, but the FX3U retains full production support for legacy applications. ## Panel Integration Expansion modules connect via the right-side bus; the RS-422 port allows a programming panel or connection to a MELSEC network. The transistor outputs are source type (PNP), so wiring must match common positive configuration.","metaTitle":"Mitsubishi FX3U-16MT/DSS PLC, 8 Inputs 8 Transistor Outputs,","metaDescription":"Mitsubishi MELSEC-F FX3U-16MT/DSS base unit, 24VDC, 8 inputs/8 transistor source outputs, 64K steps RAM, expandable to 384 I/O. Mature lifecycle, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"USB":"OPTION","Type":"FX3U","title":"FX3U-16MT/DSS","RS-422":"1","Series":"MELSEC-F SERIES","Weight":"0,6 kg","Expandable":"YES","Output Type":"TRANSISTOR","description":"MAIN UNIT","Current Type":"DC","Output Logic":"SOURCE","Buffer Battery":"YES","Program Memory":"64K STEPS","Shipping Weight":"2 Kg","lifecycle_stage":"mature","Local I/O Points":"256","Power Supply (V)":"24","Protection Class":"IP10","Cycle Time LD (ns)":"65","Cycle Time MOV (ns)":"642","Estimated Lead Time":"1 - 10 Working Days","Program Memory Unit":"RAM","Power Consumption (W)":"25","Integrated Digital Inputs":"8","Local + Remote I/O Points":"384","Integrated Digital Outputs":"8","PLC, FX3U Base Unit DC 24 V":"8 inputs DC 24 V; 8 transistor outputs","Max. Ambient Temperature (°C)":"55","Min. Ambient Temperature (°C)":"0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$247.00 – $594.36","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c2bd70392b1e7ece63e6f08638ffcd47.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the USB option on the FX3U-16MT/DSS?","answer":"The USB port is optional; it is not included as standard. An add-on module can provide USB connectivity if required."},{"question":"What is the type and series of the FX3U-16MT/DSS?","answer":"The type is FX3U, and it belongs to the MELSEC-F series from Mitsubishi Electric."},{"question":"Will the FX3U-16MT/DSS drop into a panel spec'd for FX5-C32EYT/D-TS without rewiring?","answer":"No. The FX5-C32EYT/D-TS is a different form factor (extension connector type) with a different bus interface. The FX3U base unit requires a MELSEC-F backplane and screw terminal connections; rewiring and a different base unit are necessary."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/mitsubishi/FX3U-16MT-DSS","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-16MT-DSS when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}