{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BM03B-SURS-TF","brand":"JST","brandSlug":"jst","productSlug":"BM03B-SURS-TF","canonicalUrl":"https://icsourcedirect.com/jst/BM03B-SURS-TF","factsUrl":"https://icsourcedirect.com/api/mcp/products/BM03B-SURS-TF","rawCanonicalId":null},"summary":{"shortDescription":"JST SUR series, BM03B-SURS-TF, Board to Cable/Wire header, 3 positions, 0.80mm pitch, Surface Mount, Shrouded - 4 Wall, Solder Retention, Tin contacts, rated 0.2A/0.5A at 30V.","salesMarkdown":"## What this header fits and what it signals The BM03B-SURS-TF is a 3-position, single-row, surface-mount header from JST's SUR series, pitched at 0.80mm. Rated at 0.2A per contact (with a 0.5A peak), this header is strictly for signal-level duty — think low-current sensor inputs, status LEDs, or configuration jumpers. It's not for power delivery. ## Mated stack height and board clearance That's a low profile — good for tight enclosures, but check your mating half's height tolerance to avoid interference. The part is listed as RoHS non-compliant per the evidence, so verify your regulatory requirements. The BM02B-SURS-TF is the 2-position version of the same SUR series header — same 0.80mm pitch, same 3.95mm stack height, same current rating. Choose based on your signal count; the footprint and routing are otherwise identical.","metaTitle":"BM03B-SURS-TF JST SUR Header 3-Pos 0.8mm SMT","metaDescription":"JST SUR series 3-position SMT header, 0.80mm pitch, shrouded-4-wall, tin contacts, 0.2A/0.5A rated. Active production. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":"SUR","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings","Pin Headers"],"specifications":{"Mfr":"JST Sales America Inc.","Style":"Board to Cable/Wire","Series":"SUR","Package":"Tape & Reel (TR) Cut Tape (CT)","Features":"Solder Retention","Shrouding":"Shrouded - 4 Wall","Termination":"Solder","Applications":"-","Contact Type":"Outer Shroud Contact","Contact Shape":"Rectangular","Mounting Type":"Surface Mount","Connector Type":"Header","Fastening Type":"Push-Pull","Number of Rows":"1","Pitch - Mating":"0.031\\\" (0.80mm)","Product Status":"Active","Voltage Rating":"30V","lifecycle_stage":"unknown","Contact Material":"Copper Alloy","Insulation Color":"Natural","Insulation Height":"0.106\\\" (2.70mm)","Ingress Protection":"-","Base Product Number":"BM03B-SU","Insulation Material":"Polyamide (PA), Nylon","Number of Positions":"3","Row Spacing - Mating":"-","Contact Finish - Post":"Tin","Contact Length - Post":"-","Current Rating (Amps)":"0.2A, 0.5A","Operating Temperature":"-25°C ~ 85°C","Mated Stacking Heights":"3.95mm","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":"$0.4500","priceTiers":[{"qty":1,"price":"$0.45000","currency":"USD"},{"qty":10,"price":"$0.39400","currency":"USD"},{"qty":25,"price":"$0.36000","currency":"USD"},{"qty":50,"price":"$0.33860","currency":"USD"},{"qty":100,"price":"$0.32460","currency":"USD"},{"qty":250,"price":"$0.29636","currency":"USD"},{"qty":500,"price":"$0.28224","currency":"USD"},{"qty":1000,"price":"$0.23284","currency":"USD"},{"qty":2500,"price":"$0.21168","currency":"USD"},{"qty":5000,"price":"$0.20462","currency":"USD"},{"qty":12500,"price":"$0.18769","currency":"USD"},{"qty":25000,"price":"$0.18345","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/f1512d2cb3141ff7e1ee47a080d3fe60.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/BM03B-SURS-TF/alternatives.json"},"ai":{"faq":[{"question":"What is the pitch of BM03B-SURS-TF?","answer":"The mating pitch is 0.80mm (0.031 inches). That's the center-to-center spacing of the contacts, which drives the PCB footprint and routing density."},{"question":"Does BM03B-SURS-TF have a shrouded housing?","answer":"Yes, it is shrouded on all four sides (4-wall shrouding). This protects the pins from damage during handling and guides the mating receptacle into alignment."},{"question":"What is the difference between BM03B-SURS-TF and BM02B-SURS-TF?","answer":"The only difference is the number of positions: BM03B-SURS-TF has 3 positions, BM02B-SURS-TF has 2. Everything else — pitch, stack height, current rating, material, mounting — is identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/jst/BM03B-SURS-TF","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-SURS-TF 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}}