{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"JR21WR-16S(31)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"JR21WR-16S~131~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/JR21WR-16S~131~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/JR21WR-16S(31)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose JR-W series, JR21 shell size, 16-position receptacle, female sockets, panel mount, solder cup termination, IP67/IP68 sealed, silver-plated contacts, 5 A, 100 VAC / 140 VDC, threaded coupling, keyed orientation, black chromium shell.","salesMarkdown":"## Last-Buy Status and Sourcing Reality The Hirose JR21WR-16S(31) is officially on Last Buy status — the manufacturer has ended regular production, and remaining stock is being drawn down through distribution. This is not a part to design into a new BOM; it is a service-replacement or bridge-quantity buy for existing JR-W harnesses in the field. ## What This Connector Is — JR-W Series, Shell Size 21 The JR21WR-16S(31) is a 16-position receptacle from the Hirose JR-W series, a rugged circular connector family designed for industrial, automotive, and telecommunications environments where a sealed, threaded-coupling interconnect is required. The shell size is 21, which is the mid-range body diameter in the JR-W lineup — large enough for 16 contacts at 5 A each, but compact enough for panel-mount installations where space is constrained. The connector uses a panel-mount flange with a threaded coupling ring for mating, and the orientation is keyed to prevent incorrect insertion in multi-connector panels. ## Sealing and Environmental Rating — IP67/IP68 The JR21WR-16S(31) carries an IP67/IP68 ingress protection rating — dust-tight and waterproof when mated with the corresponding JR-W plug. IP67 covers temporary immersion to 1 m for 30 minutes; IP68 extends that to deeper, longer submersion per manufacturer specification. This makes the connector suited for outdoor telecom cabinets, washdown food-processing equipment, vehicle underbody harnesses, and marine electronics where moisture ingress would otherwise kill a standard circular connector. ## Contact System — Silver Plating, Solder Cup Termination The termination is solder cup, and the current rating is 5 A per contact. ## Mating and Panel Installation The threaded coupling ring on the plug engages with the receptacle's threaded shell — tighten by hand or with a spanner wrench for vibration-resistant mating. The keyed orientation ensures the plug can only be inserted one way, which is critical when multiple JR-W connectors are ganged on a panel. The panel mount uses a flange with mounting holes — the connector is bolted to the panel from the rear, and the mating plug engages from the front.","metaTitle":"Hirose JR21WR-16S(31) Receptacle, 16 Pos, IP67, Last Buy","metaDescription":"Hirose JR21WR-16S(31) JR-W series receptacle, 16 female sockets, shell size 21, IP67/IP68 sealed, silver contacts, 5A, 100VAC/140VDC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","categoryPath":["Circular Connectors"],"specifications":{"Mfr":"Hirose Electric Co Ltd","Color":"Black","Series":"JR-W","Package":"Bulk","Features":"-","Shielding":"Unshielded","Orientation":"Keyed","Termination":"Solder Cup","Applications":"Automotive, Industrial, Telecommunications","Shell Finish":"Black Chromium","Cable Opening":"-","Mounting Type":"Panel Mount","Connector Type":"Receptacle, Female Sockets","Fastening Type":"Threaded","Product Status":"Last Time Buy","Shell Material":"Aluminum Alloy","Voltage Rating":"100VAC, 140VDC","Insert Material":"Phenol Formaldehyde (PF)","Shell Size, MIL":"-","lifecycle_stage":"unknown","Contact Material":"Copper Alloy","Mounting Feature":"Flange","Primary Material":"Metal","Ingress Protection":"IP67/IP68 - Dust Tight, Waterproof","Base Product Number":"JR21","Number of Positions":"16","Shell Size - Insert":"21","Current Rating (Amps)":"5A","Operating Temperature":"-25°C ~ 85°C","Contact Finish - Mating":"Silver","Backshell Material, Plating":"-","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Mating":"78.7µin (2.00µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$14.9800","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/JR21WR-16S(31)/alternatives.json"},"ai":{"faq":[{"question":"Is the JR21WR-16S(31) still available for purchase?","answer":"The JR21WR-16S(31) is on Last Buy status from Hirose, meaning regular production has ended. Availability is confirmed at quote time; there is no guarantee of indefinite supply."},{"question":"What is the replacement for the JR21WR-16S(31)?","answer":"Hirose has not published an official successor order code for the JR21WR-16S(31). For a new design, consider the current-production JR-W series variants in shell size 21 with the same 16-position count — confirm the keying, contact plating, and termination style match your BOM. The JR21WR-16S(31) itself is a service-replacement part for existing harnesses."},{"question":"Does the JR21WR-16S(31) have a keyed orientation?","answer":"Yes, the JR21WR-16S(31) is keyed — the insert is rotationally polarized so the mating plug can only be inserted in one orientation. This prevents mis-mating in multi-connector panels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/JR21WR-16S~131~2","citationPolicyUrl":"https://icsourcedirect.com/llms.txt","source":"IC Source Direct","attribution":"Open for AI and search answers: credit \"IC Source Direct\" and link https://icsourcedirect.com/hirose-electric-co-ltd/JR21WR-16S~131~2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:04:01.345Z","lastPublished":"2026-07-22T18:04:01.345Z","indexable":true}}