{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"Q312DB","brand":"Mitsubishi Electric","brandSlug":"mitsubishi","productSlug":"Q312DB","canonicalUrl":"https://aoctrl.com/mitsubishi/Q312DB","factsUrl":"https://aoctrl.com/api/mcp/products/Q312DB","rawCanonicalId":null},"summary":{"shortDescription":"Mitsubishi Electric Q312DB I/O extension module, MELSEC-Q series, 12-unit expansion capacity, DC 5 V 0.24 A, 439 mm width, 0.54 kg.","salesMarkdown":"## MELSEC-Q I/O expansion — what the Q312DB does in a panel The Q312DB is an I/O extension module for the Mitsubishi MELSEC-Q series PLC, designed to add input/output capacity to a base system. It accepts up to 12 input or output units, giving you the slot count to scale a Q-series rack without swapping the CPU. It draws 0.24 A from the 5 V DC backplane supply — factor that into your power budget when loading the rack, especially if the base power supply is already serving a CPU and a few high-current specialty modules. ## Mounting and panel fit The module mounts with M4 screws through 4.5 mm holes, or via an optional DIN rail adapter (Q6DIN1, sold separately). The 439 mm width and 98 mm height mean it spans most of a standard 19-inch subpanel width — plan your backplate layout so the screw holes align with the mounting pattern. ## Lifecycle and sourcing reality Typical lead time runs 1 to 10 working days through distribution, but this shifts with demand and backlog.","metaTitle":"Mitsubishi Electric Q312DB I/O Extension Module, MELSEC-Q","metaDescription":"Mitsubishi Q312DB I/O extension module for MELSEC-Q series PLCs. Expands I/O capacity by 12 units. DC 5 V consumption 0.24 A. Mature lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"Mass":"0.54 kg","title":"Q312DB","Depth (D)":"44.1 mm","Width (W)":"439 mm","description":"The Mitsubishi Q312DB is an I/O extension module for the Mitsubishi Q Series PLCs (Programmable Logic Controllers). The Q Series is known for its modular and scalable design, allowing for flexibility in industrial automation systems. The Q312DB module specifically serves as an extension unit that expands the input/output capabilities of a Q Series PLC system. Key Features: Model: Q312DB Type: I/O extension module Series: Mitsubishi Q Series PLC Function: Adds extra input/output capacity to a bas","Applicable unit":"MELSEC-Q series unit","Shipping Weight":"1.5 Kg","lifecycle_stage":"mature","Mounting hole size":"M4 screw hole or f 4.5 hole (for M4 screw)","Estimated Lead Time":"Usually ships in 1 - 10 working days.","Applicable power supply unit":"MELSEC-Q series power supply unit","External dimensions Height (H)":"98 mm","Number of input / output units":"12","DC 5 V Internal current consumption":"0.24 A","DIN rail mounting adapter type name":"Q6 DIN 1 (sold separately)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$57.60","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/549ca9f144279edc7a92632c654dab1d.pdf","sourceUrl":"https://www.automationcontrolandproject.com/cgi/d05_showmore_2.php?start=0&end=39&cat_idx=delta.html&server=https&id=1&action=showmore&domain_alias=automationcontrolandproject-com&pageHtmlType=category_left"},"ai":{"faq":[{"question":"What is the Q312DB used for?","answer":"The Q312DB is an I/O extension module for Mitsubishi MELSEC-Q series PLCs. It adds capacity for up to 12 additional input or output units to a Q-series base rack, expanding the system's I/O count without upgrading the CPU."},{"question":"How can I order or check availability of the Q312DB?","answer":"The Q312DB is sourced and quoted to order against your BOM quantity through independent distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/mitsubishi/Q312DB","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/Q312DB 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}}