{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"QX42","brand":"Mitsubishi Electric","brandSlug":"mitsubishi","productSlug":"QX42","canonicalUrl":"https://aoctrl.com/mitsubishi/QX42","factsUrl":"https://aoctrl.com/api/mcp/products/QX42","rawCanonicalId":null},"summary":{"shortDescription":"Mitsubishi Melsec Q Series, Digital Input Module, QX42, 64-point sink DC input, 24 VDC, 4 mA, photocoupler isolation.","salesMarkdown":"The Mitsubishi QX42 is a 64-point sink-type DC input module for the Melsec Q Series PLC platform. Each input draws 4 mA at 24 VDC, with photocoupler isolation between field and logic. Internal consumption from the backplane is 90 mA. This module handles 64 discrete DC inputs in a single slot, making it a high-density choice for monitoring limit switches, proximity sensors, or pushbutton arrays on a single backplane address. The 64-point count means this module occupies 64 I/O points on the Q Series backplane. The 4 mA per input is typical for sink DC modules; it keeps the loop draw low enough that a standard 24 VDC power supply can feed a full rack without excessive current demand. Photocoupler isolation provides basic galvanic separation between the field wiring and the PLC logic — adequate for industrial control panels where common-mode voltages stay within the isolation rating.","metaTitle":"Mitsubishi QX42 Digital Input Module, 64-Point Sink DC Input","metaDescription":"Mitsubishi QX42 digital input module: 64-point sink DC input, 4 mA, 24 VDC, photocoupler isolation, mature lifecycle. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Digital Input Modules"],"specifications":{"title":"QX42","Product No.":"QX42","description":"QX42 INPUT MODULE 64 POINT SINK DC INPUT 4 MA 24 VDC PLC Q Series Input module; 24 V DC; 64 inputs; sink; response time 0,1 ms","Product type":"Digital Input Module","Shipping weight":"3Kg","lifecycle_stage":"mature","Isolation method":"Photocoupler","Estimated Lead Time":"Usually ships in 1 - 10 working days.","Rated input current":"4 mA","Applicable wire size":"0.3 mm2","Number of input poits":"64","Internal current consumption":"90 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$60.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5dfc7132a4d88d786c530a47e554f595.pdf","sourceUrl":"https://www.automationcontrolandproject.com/cgi/d05_showmore_2.php?start=0&end=39&cat_idx=plc.html&server=https&id=1&action=showmore&domain_alias=automationcontrolandproject-com&pageHtmlType=category_left"},"ai":{"faq":[{"question":"Will the QX42 drop into a panel specified around the FX5-8EX/ES?","answer":"No. The QX42 is a Q Series module that mounts on the Q Series backplane, while the FX5-8EX/ES is an iQ-F series module with a different form factor, bus interface, and wiring. Rewiring and a different PLC base unit would be required."},{"question":"What compliance documentation is available for the QX42?","answer":"The evidence does not list specific compliance certifications (RoHS, REACH, UL, IEC) for this part. Standard Mitsubishi documentation for the Q Series would typically include a CE declaration and a RoHS compliance statement; confirm with the supplier at RFQ time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/mitsubishi/QX42","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/QX42 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}}