{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"03SR-3S","brand":"JST","brandSlug":"jst","productSlug":"03SR-3S","canonicalUrl":"https://icsourcedirect.com/jst/03SR-3S","factsUrl":"https://icsourcedirect.com/api/mcp/products/03SR-3S","rawCanonicalId":null},"summary":{"shortDescription":"JST SR series receptacle, 03SR-3S, 3 positions, single row, 1.00 mm pitch, tin-plated female sockets, free-hanging (in-line), IDC termination for 30 AWG discrete wire, bulk.","salesMarkdown":"The JST 03SR-3S is the 3-position member of the SR series receptacles, a single-row, 1.00 mm pitch connector designed for discrete wire termination via IDC. ## Termination and Wire Prep — IDC on 30 AWG Discrete The 03SR-3S uses IDC termination for 30 AWG discrete wire — not ribbon cable. This means each conductor is individually pressed into an insulation-displacing slot in the contact, so no stripping or crimping is needed. The trade-off is that the wire gauge is fixed at 30 AWG; the IDC slot geometry won't reliably terminate a heavier or lighter wire. The closed-end feature prevents the wire from pushing through the back of the housing, which is helpful during hand assembly in a harness jig. ## Position Count and Series Siblings At 3 positions, the 03SR-3S is the smallest circuit count in the SR receptacle line. The same housing and pitch are shared with the 2-position 02SR-3S and the 4-position 04SR-3S, so the footprint on the mating header side scales linearly with position count — a 3-position header matches this exactly.","metaTitle":"JST 03SR-3S SR Receptacle, 3 Pos, 1.00mm, IDC","metaDescription":"JST SR series 03SR-3S receptacle, 3 positions, 1.00mm pitch, tin female sockets, IDC for 30 AWG, free-hanging. RoHS3. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":"SR","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Circular Connectors","Panel-Mount & In-Line Circular"],"specifications":{"Mfr":"JST Sales America Inc.","Color":"Natural","Pitch":"0.039\\\" (1.00mm)","Series":"SR","Package":"Bulk","Features":"Closed End","Wire Type":"Discrete","Wire Gauge":"30 AWG","Row Spacing":"-","Contact Type":"Female Socket","Mounting Type":"Free Hanging (In-Line)","Connector Type":"Receptacle","Contact Finish":"Tin","Fastening Type":"-","Number of Rows":"1","Product Status":"Active","lifecycle_stage":"unknown","Cable Termination":"IDC","Base Product Number":"03SR","Number of Positions":"3","Contact Finish Thickness":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3400","priceTiers":[{"qty":1,"price":"$0.34000","currency":"USD"},{"qty":10,"price":"$0.28800","currency":"USD"},{"qty":25,"price":"$0.25320","currency":"USD"},{"qty":50,"price":"$0.23280","currency":"USD"},{"qty":100,"price":"$0.22370","currency":"USD"},{"qty":250,"price":"$0.20084","currency":"USD"},{"qty":500,"price":"$0.19172","currency":"USD"},{"qty":1000,"price":"$0.15976","currency":"USD"},{"qty":2500,"price":"$0.14607","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/b6b85058330abf039f5e059a7f9f37e1.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/03SR-3S/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy JST 03SR-3S?","answer":"The 03SR-3S is sourced to order against an RFQ through independent distribution. Submit a request for current pricing and availability — confirmed at quote time."},{"question":"What is the mating connector for 03SR-3S?","answer":"The 03SR-3S mates with the matching JST SR series 3-position header at 1.00 mm pitch. The header is the male pin counterpart with the same circuit count and pitch."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/jst/03SR-3S","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/jst/03SR-3S 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}}