{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"40R-JMDSS-G-1-TF(S)(LF)(SN)","brand":"JST","brandSlug":"jst","productSlug":"40R-JMDSS-G-1-TF~1S~2~1LF~2~1SN~2","canonicalUrl":"https://icsourcedirect.com/jst/40R-JMDSS-G-1-TF~1S~2~1LF~2~1SN~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/40R-JMDSS-G-1-TF(S)(LF)(SN)","rawCanonicalId":null},"summary":{"shortDescription":"JST JMD series receptacle, center strip contacts, 40 positions, 0.020\" (0.50mm) pitch, 2 rows, surface mount, gold contact finish, solder retention, mated stacking heights 4.5mm, 5mm, 6mm.","salesMarkdown":"## JST JMD 40-Position Receptacle — 0.50mm Pitch, SMT, Gold Contacts The JST 40R-JMDSS-G-1-TF(S)(LF)(SN) is a 40-circuit receptacle from the JMD series, designed as the board-mount half of a board-to-board stacking interconnect. The surface-mount termination and solder retention features suit it for reflow assembly in automated production lines. Typical use is as the lower board receptacle in a mezzanine stack, mating with the JMD series header to achieve mated heights of 4.5mm, 5mm, or 6mm — the height is selected by choosing the matching header variant. ## Pitch and Stack Height — What They Mean for Board Layout It drives the PCB footprint: each pad sits on 0.50mm centres, which limits trace escape width between pads to roughly 0.20mm on the inner layers. The mated stacking heights of 4.5mm, 5mm, and 6mm are set by the header side — this receptacle is the same height regardless, so the designer picks the header that gives the required z-height clearance above the top board. The 40 positions match a 40-signal BOM line; if your circuit count is 40, this is the one. ## Solder Retention and Surface Mount Termination The surface-mount termination means no through-hole soldering — the connector sits entirely on the board surface, which frees up the opposite side for other components. This is a standard SMT assembly process: paste, place, reflow.","metaTitle":"JST JMD 40R-JMDSS-G-1-TF(S)(LF)(SN)","metaDescription":"JST JMD series 40-position receptacle, 0.020\" (0.50mm) pitch, SMT, gold contacts, RoHS. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":"JMD","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Board-to-Board Connectors","Mezzanine & Stacking Connectors"],"specifications":{"Mfr":"JST Sales America Inc.","Pitch":"0.020\\\" (0.50mm)","Series":"JMD","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Solder Retention","Mounting Type":"Surface Mount","Connector Type":"Receptacle, Center Strip Contacts","Contact Finish":"Gold","Number of Rows":"2","Product Status":"Active","lifecycle_stage":"unknown","Height Above Board":"0.122\\\" (3.10mm)","Base Product Number":"40R-JMDS","Number of Positions":"40","Mated Stacking Heights":"4.5mm, 5mm, 6mm","Contact Finish Thickness":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.9700","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.97000","currency":"USD"},{"qty":10,"price":"$1.71900","currency":"USD"},{"qty":25,"price":"$1.64520","currency":"USD"},{"qty":50,"price":"$1.60880","currency":"USD"},{"qty":100,"price":"$1.53570","currency":"USD"},{"qty":250,"price":"$1.38944","currency":"USD"},{"qty":500,"price":"$1.27974","currency":"USD"},{"qty":1500,"price":"$1.06036","currency":"USD"},{"qty":3000,"price":"$1.02380","currency":"USD"},{"qty":7500,"price":"$0.97261","currency":"USD"},{"qty":10500,"price":"$0.95067","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/ccc11a7cef2a411837224742aeef31c5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between 40R-JMDSS-G-1-TF(S)(LF)(SN) and 40R-JMDS-G-1-TF?","answer":"Both share the same base product number 40R-JMDS, pitch, 40 positions, gold contacts, and SMT mounting. The (S)(LF)(SN) suffix adds solder retention features, which provide extra mechanical hold-down on the PCB during reflow and in service."},{"question":"What is the mating height for JST JMD series connectors?","answer":"This receptacle supports mated stacking heights of 4.5mm, 5mm, and 6mm, depending on the header variant selected. The header side determines the final stack height."},{"question":"Where can I buy 40R-JMDSS-G-1-TF(S)(LF)(SN)?","answer":"This part is sourced to order against your BOM quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/jst/40R-JMDSS-G-1-TF~1S~2~1LF~2~1SN~2","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/40R-JMDSS-G-1-TF~1S~2~1LF~2~1SN~2 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}}