{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1731090854","brand":"Molex","brandSlug":"molex","productSlug":"1731090854","canonicalUrl":"https://icsourcedirect.com/molex/1731090854","factsUrl":"https://icsourcedirect.com/api/mcp/products/1731090854","rawCanonicalId":null},"summary":{"shortDescription":"Molex F, FCT 173109 D-Sub Receptacle, Female Sockets, 9 Positions, 2 Rows, Through Hole, Solder Termination, 5A, -55°C to 125°C, UL94 V-0, White, Steel Shell.","salesMarkdown":"## DE-9 Receptacle for Signal and Low-Power I/O The Molex 1731090854 is a standard DE-9 (E layout) D-sub receptacle with 9 female socket contacts arranged in 2 rows. It's a through-hole solder-terminated connector from the F, FCT 173109 series, with a white polyester glass-filled housing rated UL94 V-0 and a steel shell with tin plating. This is the receptacle half — mates with any standard 9-pin D-sub plug (male) having the same DE-9 shell size. Typical use is for serial communication ports (RS-232), industrial sensor I/O, PLC interfaces, and instrumentation cabling where a field-serviceable, solderable connector is preferred over crimp-style D-subs. ## What the 5 A Rating Means for Real Circuits Each contact is rated 5 A — that's per-pin current, not total. In practice, if you populate all 9 positions, the combined current heats the connector body, so derate the per-contact current when running more than a few circuits simultaneously. For a typical RS-232 port drawing under 100 mA per line, there's no derating concern. For a low-power sensor bus where each line carries 1-2 A, the 5 A rating gives solid headroom. The machined copper alloy contacts handle repeated soldering and rework on site without losing spring force. ## Mounting and Hardware Fit This receptacle has an unthreaded housing/shell flange — no integrated jackscrew threads. That means you supply your own 4-40 or M3 hardware through the flange holes to secure it to the panel or mating plug. The through-hole solder tails go into a PCB or you can solder wires directly to the pins (solder-cup style termination). The white insulator helps identify this connector in a harness bundle if you're colour-coding signal types.","metaTitle":"Molex 1731090854 D-Sub Receptacle, 9-Pin DE-9, Through Hole","metaDescription":"Molex 1731090854 FCT D-sub receptacle, 9 positions (DE-9), 2 rows, through-hole solder termination, 5A per contact, -55°C to 125°C, UL94 V-0.","metaKeywords":null},"attributes":{"series":"F, FCT 173109","packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["D-Sub & D-Shaped Connectors","D-Sub Cable Assemblies"],"specifications":{"Mfr":"Molex","Color":"White","Series":"F, FCT 173109","Package":"Bulk","Features":"-","Wire Gauge":"-","Termination":"Solder","Contact Form":"Machined","Contact Type":"Signal","Mounting Type":"Through Hole","Connector Type":"Receptacle, Female Sockets","Contact Finish":"-","Flange Feature":"Housing/Shell (Unthreaded)","Number of Rows":"2","Product Status":"Active","Voltage Rating":"-","Backset Spacing":"-","Connector Style":"D-Sub","lifecycle_stage":"unknown","Contact Material":"Copper Alloy","Primary Material":"Metal","Ingress Protection":"-","Base Product Number":"173109","Dielectric Material":"Polyester, Glass Filled","Number of Positions":"9","Current Rating (Amps)":"5A","Operating Temperature":"-55°C ~ 125°C","Shell Material, Finish":"Steel, Tin Plated","Contact Finish Thickness":"-","Material Flammability Rating":"UL94 V-0","Shell Size, Connector Layout":"1 (DE, E)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.8800","priceTiers":[{"qty":1,"price":"$6.88000","currency":"USD"},{"qty":10,"price":"$6.02000","currency":"USD"},{"qty":100,"price":"$4.87350","currency":"USD"},{"qty":1000,"price":"$4.01350","currency":"USD"},{"qty":2500,"price":"$3.81282","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/ba42b01dee185b062965f6e0298fb968.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/1731090854/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy Molex 1731090854?","answer":"The Molex 1731090854 is available to order through independent distribution. Submit an RFQ for current pricing and lead time — availability is confirmed at quote time."},{"question":"What is the mounting type of 1731090854?","answer":"Through-hole solder termination. The pins are soldered into a PCB or can be used as solder cups for direct wire attachment. The flange is unthreaded, so you supply your own mounting hardware."},{"question":"Does 1731090854 include mounting hardware?","answer":"No — the flange feature is listed as Housing/Shell (Unthreaded). You need to provide 4-40 or M3 screws and nuts separately for panel mounting or mating to a plug."},{"question":"What is a direct replacement or equivalent for 1731090854?","answer":"Any standard DE-9 (E layout) D-sub receptacle with the same shell size and through-hole termination will fit the same panel cutout and mate with a standard DB-9 plug, but verify the flange style and insulator colour match your application."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/1731090854","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/molex/1731090854 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:52:26.615Z","lastPublished":"2026-08-11T15:52:26.615Z","indexable":true}}