{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SDEG-9PF(55)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"SDEG-9PF~155~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/SDEG-9PF~155~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/SDEG-9PF(55)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose SD series D-Sub plug, male pins, 9 positions, 2 rows, 3A, 350V, solder termination, panel mount, gold-plated contacts, nickel-plated steel shell.","salesMarkdown":"## Hirose SDEG-9PF(55) — DB-9 Male Plug, Last Buy Sourcing The Hirose SDEG-9PF(55) is a standard D-Sub plug with male pins in the DE-9 shell layout — the familiar DB-9 footprint used for RS-232 serial, industrial fieldbus, and instrumentation cabling. It carries 9 positions across 2 rows, rated 3 A per contact at 350 V, with gold-plated phosphor bronze contacts (8.00 µ\" gold over nickel). The shell is steel with nickel plating, and the housing includes grounding indents for shield continuity before the signal pins mate. This is the male plug half — it mates with any standard DE-9 female receptacle. ## What the 3 A and Gold Plating Mean for Your Signal Path This is not a power contact; do not plan to carry motor drive or heater current through it. For corrosive or high-vibration settings, a thicker gold finish (15 µ\" or 30 µ\") would be preferred, but this part is not specified for that duty. The grounding indents on the shell mate with the receptacle's ground springs, bleeding shield current before the signal pins touch — a detail that matters for EMC compliance in industrial cabinets. ## Mounting and Termination — Panel Mount, Solder Cups This plug is designed for panel mount with an unthreaded housing shell — it secures through the panel cutout using the mating receptacle's hardware, not its own threads. Termination is solder cup: each pin has a cup that accepts a stripped wire end, soldered in place. The mounting type is panel mount, through hole — the solder cups pass through the PCB if used as a board-mount connector, but the primary installation is panel-mount with wires soldered directly.","metaTitle":"Hirose SDEG-9PF(55) D-Sub Plug, 9-Pin Male, Last Buy","metaDescription":"Hirose SD SDEG-9PF(55) D-Sub plug, 9-position male pins, 3A, 350V, gold contacts, grounding indents. Last Buy — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","categoryPath":["D-Sub & D-Shaped Connectors"],"specifications":{"Mfr":"Hirose Electric Co Ltd","Color":"Black","Series":"SD","Package":"Tray","Features":"Grounding Indents","Wire Gauge":"-","Termination":"Solder","Contact Form":"-","Contact Type":"Signal","Mounting Type":"Panel Mount, Through Hole","Connector Type":"Plug, Male Pins","Contact Finish":"Gold","Flange Feature":"Housing/Shell (Unthreaded)","Number of Rows":"2","Product Status":"Last Time Buy","Voltage Rating":"350V","Backset Spacing":"-","Connector Style":"D-Sub","lifecycle_stage":"unknown","Contact Material":"Phosphor Bronze","Ingress Protection":"-","Base Product Number":"SDEG","Dielectric Material":"Polybutylene Terephthalate (PBT)","Number of Positions":"9","Current Rating (Amps)":"3A","Operating Temperature":"-","Shell Material, Finish":"Steel, Nickel Plated","Contact Finish Thickness":"8.00µin (0.203µm)","Material Flammability Rating":"UL94 V-0","Shell Size, Connector Layout":"1 (DE, E)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.7900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Is SDEG-9PF(55) discontinued or last time buy?","answer":"Yes, the SDEG-9PF(55) is on Last Buy status. This means Hirose has announced the end of production, and the final purchase window is open."},{"question":"What is the pinout of SDEG-9PF(55)?","answer":"The SDEG-9PF(55) follows the standard DE-9 (DB-9) pinout: 9 pins in two rows, with pin 1 at the top-left when viewing the mating face. The pinout matches any standard RS-232 or serial port assignment. Confirm your specific wiring against the system schematic before soldering."},{"question":"What are the alternatives to SDEG-9PF(55)?","answer":"No official direct replacement from Hirose has been assigned for this Last Buy part. A functionally equivalent D-Sub plug from another manufacturer (e.g., Amphenol, TE Connectivity) with the same DE-9 shell size, 9 positions, male pins, and solder termination would be a candidate. Verify the mounting flange and grounding indent feature match your application before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/SDEG-9PF~155~2","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/SDEG-9PF~155~2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:25.888Z","lastPublished":"2026-07-20T14:34:25.888Z","indexable":true}}