{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"2-5177986-6","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"2-5177986-6","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/2-5177986-6","factsUrl":"https://icsourcedirect.com/api/mcp/products/2-5177986-6","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity Free Height (FH) plug, center strip contacts, 140 positions, 2 rows, 0.031\" (0.80mm) pitch, surface mount, gold 8.00µin contacts, 0.270\" (6.85mm) above board.","salesMarkdown":"## Mezzanine connector for tight board stacks The 0.80 mm pitch and dual-row center-strip contact arrangement pack a high circuit count into a compact footprint, typical for dense server, switch, or telecom line-card applications where signal density per square mm drives the layout. The plug mates with the matching Free Height receptacle to achieve one of four mated stacking heights — 7 mm, 11 mm, 15 mm, or 19 mm — giving the board designer a single connector family that spans multiple board-spacing requirements without requalifying a new part. ## What the 0.80 mm pitch and 140 positions mean for the board layout The 0.80 mm pitch and 140 positions across two rows suit dense mezzanine layouts. ## Stack height options and the single plug One 2-5177986-6 plug supports four distinct mated stacking heights — 7 mm, 11 mm, 15 mm, and 19 mm — depending on which Free Height receptacle it mates with. That means a single BOM line for the plug across multiple board-stack variants, which simplifies inventory and qualification. The height above board of the plug itself is 6.85 mm, so the 7 mm stack is nearly flush with the plug body; the taller stacks leave an air gap that helps with cross-board airflow in a chassis.","metaTitle":"TE Connectivity 2-5177986-6 Free Height Plug, 140 Pos","metaDescription":"TE Connectivity 2-5177986-6 Free Height (FH) plug, 140 positions, 0.80mm pitch, SMT, gold contacts. Mates at 7/11/15/19mm stack heights. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"Free Height (FH)","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Board-to-Board Connectors","Mezzanine & Stacking Connectors"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Pitch":"0.031\\\" (0.80mm)","Series":"Free Height (FH)","Package":"Tape & Reel (TR) Cut Tape (CT)","Features":"Board Guide","Mounting Type":"Surface Mount","Connector Type":"Plug, Center Strip Contacts","Contact Finish":"Gold","Number of Rows":"2","Product Status":"Active","lifecycle_stage":"unknown","Height Above Board":"0.270\\\" (6.85mm)","Base Product Number":"5177986","Number of Positions":"140","Mated Stacking Heights":"7mm, 11mm, 15mm, 19mm","Contact Finish Thickness":"8.00µin (0.203µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.0200","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$11.02000","currency":"USD"},{"qty":10,"price":"$9.96800","currency":"USD"},{"qty":25,"price":"$9.70440","currency":"USD"},{"qty":50,"price":"$9.33500","currency":"USD"},{"qty":100,"price":"$8.64950","currency":"USD"},{"qty":450,"price":"$8.59671","currency":"USD"},{"qty":900,"price":"$8.28027","currency":"USD"},{"qty":1350,"price":"$7.38368","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the pitch of 2-5177986-6?","answer":"The pitch is 0.031\" (0.80 mm), which is the standard fine pitch for the Free Height mezzanine series and drives the PCB footprint routing density."},{"question":"What are the mated stacking heights for 2-5177986-6?","answer":"This plug supports four mated stacking heights: 7 mm, 11 mm, 15 mm, and 19 mm, depending on the mating receptacle used."},{"question":"Is 2-5177986-6 RoHS compliant?","answer":"Yes, it is ROHS3 Compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/2-5177986-6","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/te-connectivity-amp-connectors/2-5177986-6 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}}