{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3-641438-9","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"3-641438-9","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-641438-9","factsUrl":"https://icsourcedirect.com/api/mcp/products/3-641438-9","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity MTA-156 IDC plug, 3-641438-9, 9 positions, 1 row, 0.156\" (3.96mm) pitch, tin-plated male pins, 24 AWG, closed end, free-hanging right-angle mount.","salesMarkdown":"## What This Plug Does on the Harness The TE Connectivity MTA-156 3-641438-9 is a 9-position IDC plug that mass-terminates 24 AWG discrete or ribbon cable in one press operation — no individual crimp terminals, no loose contacts to feed. The 0.156\" (3.96mm) pitch matches the standard MTA-156 header footprint, so the board layout is fixed once you pick this series. Tin plating on the male pins (80.0µin thick) handles a few mating cycles in a permanent harness install; it's not a high-cycle gold contact, but for a set-and-forget wire-to-board connection the tin saves cost over the gold-plated siblings. The closed-end housing stops the wire from poking out the back, keeping the harness profile clean and avoiding a short against a metal panel or enclosure wall. ## IDC Termination — One Press, No Loose Parts This plug uses insulation-displacement contacts: the wire sits in the slot, and the press tool forces the insulation aside so the tin-plated male pin bites into the conductor. No stripping, no crimping, no loose terminal inventory — the whole 9-position cable end terminates in one stroke. The wire gauge is locked to 24 AWG; the IDC slot geometry won't grip 22 AWG reliably, and 26 AWG may pull out under tension. Discrete or ribbon cable both work, but ribbon needs a slit at the breakout if you're daisy-chaining. The closed-end feature means the wire stops inside the housing — no tail to trim, no risk of a stray strand touching the header pins on the back side. ## Mating and Mounting — Free-Hanging Right-Angle The tin-on-tin contact interface is fine for a few mate-unmate cycles during assembly or field service; beyond that, the tin frets and contact resistance drifts. For a harness that stays mated for the life of the equipment, this is the right call. The white housing colour is the standard MTA-156 natural; no keying or colour coding on this variant.","metaTitle":"TE MTA-156 3-641438-9 IDC Plug, 9 Pos, 0.156\" Pitch","metaDescription":"TE MTA-156 3-641438-9 IDC plug, 9 positions, 0.156\" pitch, tin-plated male pins. Mass-terminates 24 AWG discrete or ribbon cable.","metaKeywords":null},"attributes":{"series":"MTA-156","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Circular Connectors","Panel-Mount & In-Line Circular"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Color":"White","Pitch":"0.156\\\" (3.96mm)","Series":"MTA-156","Package":"Bulk","Features":"Closed End","Wire Type":"Discrete or Ribbon Cable","Wire Gauge":"24 AWG","Row Spacing":"-","Contact Type":"Male Pin","Mounting Type":"Free Hanging (In-Line), Right Angle","Connector Type":"Plug","Contact Finish":"Tin","Fastening Type":"-","Number of Rows":"1","Product Status":"Active","lifecycle_stage":"unknown","Cable Termination":"IDC","Base Product Number":"641438","Number of Positions":"9","Contact Finish Thickness":"80.0µin (2.03µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6800","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.68000","currency":"USD"},{"qty":10,"price":"$1.53800","currency":"USD"},{"qty":25,"price":"$1.49240","currency":"USD"},{"qty":50,"price":"$1.47740","currency":"USD"},{"qty":100,"price":"$1.37130","currency":"USD"},{"qty":250,"price":"$1.34860","currency":"USD"},{"qty":500,"price":"$1.22740","currency":"USD"},{"qty":1000,"price":"$1.09859","currency":"USD"},{"qty":2500,"price":"$1.01525","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the 3-641438-9 and get a price?","answer":"The 3-641438-9 is sourced to order through independent distribution. Submit an RFQ for current pricing and availability — both are confirmed at quote time."},{"question":"Is the 3-641438-9 compatible with MTA-156 headers?","answer":"Yes — the 0.156\" (3.96mm) pitch and single-row male pin layout match the standard MTA-156 header footprint. The plug mates with any MTA-156 header of the same position count (9 positions)."},{"question":"What wire gauge does the 3-641438-9 accept?","answer":"24 AWG only — the IDC slot is sized for that conductor diameter. 22 AWG is too thick for the insulation-displacement slot, and 26 AWG may not hold reliably under tension."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-641438-9","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/3-641438-9 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:25.888Z","lastPublished":"2026-07-20T14:34:25.888Z","indexable":true}}