{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BM03B-SRSS-TB(LF)(SN)","brand":"JST","brandSlug":"jst","productSlug":"BM03B-SRSS-TBLFSN","canonicalUrl":"https://icsourcedirect.com/jst/BM03B-SRSS-TBLFSN","factsUrl":"https://icsourcedirect.com/api/mcp/products/BM03B-SRSS-TB(LF)(SN)","rawCanonicalId":null},"summary":{"shortDescription":"JST SH/SR series, 3-position, 1.00mm pitch, shrouded SMT header, male pin, tin-plated contacts, 1A/50V, UL94 V-0, solder retention.","salesMarkdown":"The BM03B-SRSS-TB(LF)(SN): The 1.00 mm pitch (0.039 in) on this 3-position header sets a tight board footprint — the contact-to-contact spacing forces a finer trace-and-space rule than standard 2.54 mm headers, which matters when routing signal traces between the pads on a dense PCB. The single-row layout with all positions loaded gives a compact 3.00 mm wide body, keeping the z-height at 4.25 mm above the board surface when mated. ## SMT Soldering and Solder Retention Anchoring The solder retention feature is standard on the SRSS series; it improves board-level reliability in applications where the mated connector sees periodic cable movement, like portable device internal harnesses. The mated stack height is 4.9 mm, which fits within the clearance budget of most compact enclosures. ## Current and Voltage Ceiling for Signal Duty The tin-on-tin contact interface (mating and post finish both tin) limits the current capacity and the mating cycle life to about 30 cycles before fretting corrosion may increase contact resistance. The base product number is BM03B-SR; the suffix -TB(LF)(SN) indicates a tape-and-reel package with lead-free plating.","metaTitle":"BM03B-SRSS-TB(LF)(SN) JST SH/SR 1.00mm Pitch 3-Pin SMT","metaDescription":"JST BM03B-SRSS-TB(LF)(SN) 3-position 1.00mm pitch shrouded SMT header, 1A/50V, tin contacts, solder retention. Active production; sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings"],"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","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":"0.167\\\" (4.25mm)","Ingress Protection":"-","Base Product Number":"BM03B-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":"4.9mm","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":"$0.5000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/721c650acc679a2aefea77d98f4b86c5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does BM03B-SRSS-TB(LF)(SN) mate with JST SH series crimp housings?","answer":"Yes, this header is designed to mate with JST SH series crimp receptacles (e.g., SHR-03V-S). The 4-wall shrouding and push-pull latch ensure a polarized, secure connection. The mated stack height is 4.9 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/jst/BM03B-SRSS-TBLFSN","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/BM03B-SRSS-TBLFSN 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}}