{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM03B-SRSS-TB","brand":"JST","brandSlug":"jst","productSlug":"SM03B-SRSS-TB","canonicalUrl":"https://icsourcedirect.com/jst/SM03B-SRSS-TB","factsUrl":"https://icsourcedirect.com/api/mcp/products/SM03B-SRSS-TB","rawCanonicalId":null},"summary":{"shortDescription":"JST SM03B-SRSS-TB, SH/SR series, 3-position single-row header, 1.00 mm pitch, right-angle SMT, shrouded-4-wall, tin-plated male pins, 1 A, 50 V, UL94 V-0 natural nylon, Tape & Reel.","salesMarkdown":"## 1.00 mm pitch SMT header for SH/SR receptacles The SM03B-SRSS-TB: This is a 3-position, single-row header from JST's SH/SR series, designed to mate with the SH/SR crimp-style receptacle housings. The 1.00 mm pitch sets the board footprint and the per-contact current ceiling — at 1 A the temperature rise stays within the UL94 V-0 nylon housing limit. The header is shrouded on all four walls, which protects the male pins during mating and prevents misalignment with the receptacle. ## Tin-plated contacts and operating envelope Tin plating is cost-effective for moderate mating cycles — expect several dozen matings before contact resistance begins to rise. For higher cycle counts, the gold-plated variants in the SH/SR family are a better fit. Rated at 1 A per contact and 50 V, this header suits low-power signal and sensor connections inside equipment enclosures.","metaTitle":"JST SM03B-SRSS-TB 3-Pin 1mm Pitch SMT Header","metaDescription":"JST SM03B-SRSS-TB — 3-position, 1.00 mm pitch, right-angle SMT header from the SH/SR series. Tin-plated male pins, shrouded, UL94 V-0.","metaKeywords":null},"attributes":{"series":"SH/SR","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings","Pin Headers"],"specifications":{"Mfr":"JST Sales America Inc.","Style":"Board to Cable/Wire","Series":"SH/SR","Package":"Tape & Reel (TR) Cut Tape (CT)","Features":"Solder Retention","Shrouding":"Shrouded - 4 Wall","Termination":"Solder","Applications":"-","Contact Type":"Male Pin","Contact Shape":"Square","Mounting Type":"Surface Mount, Right Angle","Connector Type":"Header","Fastening Type":"Push-Pull","Number of Rows":"1","Pitch - Mating":"0.039\\\" (1.00mm)","Product Status":"Active","Voltage Rating":"50V","lifecycle_stage":"unknown","Contact Material":"Copper Alloy","Insulation Color":"Natural","Insulation Height":"0.114\\\" (2.90mm)","Ingress Protection":"-","Base Product Number":"SM03B-SR","Insulation Material":"Polyamide (PA), Nylon","Number of Positions":"3","Row Spacing - Mating":"-","Contact Finish - Post":"Tin","Contact Length - Post":"-","Current Rating (Amps)":"1A","Operating Temperature":"-25°C ~ 85°C","Mated Stacking Heights":"-","Overall Contact Length":"-","Contact Finish - Mating":"Tin","Contact Length - Mating":"-","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"-","Contact Finish Thickness - Mating":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5200","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.52000","currency":"USD"},{"qty":10,"price":"$0.45400","currency":"USD"},{"qty":100,"price":"$0.37440","currency":"USD"},{"qty":500,"price":"$0.32554","currency":"USD"},{"qty":1000,"price":"$0.26858","currency":"USD"},{"qty":3000,"price":"$0.24416","currency":"USD"},{"qty":6000,"price":"$0.23602","currency":"USD"},{"qty":9000,"price":"$0.21974","currency":"USD"},{"qty":15000,"price":"$0.21649","currency":"USD"},{"qty":30000,"price":"$0.21161","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/01a3d0422a428094e98b60769fffa9d7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the pitch of JST SM03B-SRSS-TB?","answer":"The pitch is 1.00 mm (0.039 inches), measured centre-to-centre on the single row of pins."},{"question":"Is JST SM03B-SRSS-TB compatible with JST SH series connectors?","answer":"Yes, this header is part of the SH/SR series and mates directly with JST SH-series receptacle housings and crimp terminals."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/jst/SM03B-SRSS-TB","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/SM03B-SRSS-TB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:46:37.382Z","lastPublished":"2026-07-22T19:46:37.382Z","indexable":true}}