{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BM40B-SRDS-A-G-TF(LF)(SN)","brand":"JST","brandSlug":"jst","productSlug":"BM40B-SRDS-A-G-TFLFSN","canonicalUrl":"https://icsourcedirect.com/jst/BM40B-SRDS-A-G-TFLFSN","factsUrl":"https://icsourcedirect.com/api/mcp/products/BM40B-SRDS-A-G-TF(LF)(SN)","rawCanonicalId":null},"summary":{"shortDescription":"JST SHD header, order code BM40B-SRDS-A-G-TF(LF)(SN), 40 positions, dual row, 1.00 mm pitch, 1 A, 50 V, gold-plated mating contacts, surface-mount, shrouded - 4 wall, solder termination.","salesMarkdown":"## 40-circuit SHD board-to-wire header The BM40B-SRDS-A-G-TF(LF)(SN) is the 40-circuit member of JST's SHD board-to-wire header line, a 1.00 mm pitch shrouded header for cable-to-board interconnects. Rated 1 A per contact at 50 V with gold-plated mating contacts, the header mounts surface-mount and achieves a mated stack height of 6.3 mm. ## Pitch, footprint, and routing density The 1.00 mm pitch and dual-row layout place 40 circuits in a compact board footprint; the 4-wall shrouded housing with board guide and solder retention aids alignment during reflow. The UL94 V-0 glass-filled nylon housing supports an operating range of -25°C to 85°C, and the 4.25 mm insulation height provides clearance for routing under the connector.","metaTitle":"JST SHD BM40B-SRDS-A-G-TF(LF)(SN) Header, 40-Pos 1.00mm","metaDescription":"JST SHD header BM40B-SRDS-A-G-TF(LF)(SN): 40 positions, dual row, 1.00 mm pitch, 1 A, 50 V, gold mating contacts, SMT, shrouded, 6.3 mm stack height.","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":"SHD","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Board Guide, Pick and Place, 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":"2","Pitch - Mating":"0.039\\\" (1.00mm)","Product Status":"Active","Voltage Rating":"50V","lifecycle_stage":"unknown","Contact Material":"Phosphor Bronze","Insulation Color":"Natural","Insulation Height":"0.167\\\" (4.25mm)","Ingress Protection":"-","Base Product Number":"BM40B-SR","Insulation Material":"Polyamide (PA), Nylon, Glass Filled","Number of Positions":"40","Row Spacing - Mating":"-","Contact Finish - Post":"-","Contact Length - Post":"-","Current Rating (Amps)":"1A","Operating Temperature":"-25°C~85°C","Mated Stacking Heights":"6.3mm","Overall Contact Length":"-","Contact Finish - Mating":"Gold","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":"$2.8300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/2403b4279e287027e58661e35d06bdda.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative in the SHD series?","answer":"The SHD series includes other position counts at the same 1.00 mm pitch and dual-row layout, such as 20-position (BM20B-SRDS) or 30-position (BM30B-SRDS) variants — match the position count to the circuit count for the same footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/jst/BM40B-SRDS-A-G-TFLFSN","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/BM40B-SRDS-A-G-TFLFSN 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}}