{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1546218-3","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"1546218-3","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1546218-3","factsUrl":"https://icsourcedirect.com/api/mcp/products/1546218-3","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity Buchanan 1546218-3, 3-position terminal block, 5.08mm pitch, 17.5A, 300V, through-hole, screw rising cage clamp, gray PA66 housing.","salesMarkdown":"## Three-Position PCB Terminal Block with Rising Cage Clamp The TE Connectivity Buchanan 1546218-3 is a 3-position, single-level PCB terminal block with a 5.08 mm pitch. It terminates wires via a screw-driven rising cage clamp — the M3 screw lifts the clamp plate to trap the conductor against the bus bar, giving a gas-tight connection on solid or stranded wire from 12 to 30 AWG. The 17.5 A rating per level is the continuous current at the rated temperature rise — it is not a peak or surge figure. At 5.08 mm pitch, the 300 V rating gives enough creepage for most industrial control and HVAC panels without requiring a wider block. The brass contacts are tin-plated, which is standard for screw-clamp terminations where the connection is permanent or infrequently cycled; tin provides good corrosion resistance in dry indoor environments. ## Side Interlocking for Multi-Position Assemblies The interlocking side feature allows multiple 1546218-3 blocks to be ganged together side-by-side on the same PCB or DIN rail, creating a continuous terminal strip with a common pitch. ## Torque and Termination Checklist The M3 screw has a specified torque of 0.79 Nm (7.0 Lb-In) — overtightening can strip the brass threads or crack the PA66 housing. The rising cage clamp accepts wire from 12 to 30 AWG; strip length should follow the manufacturer's recommendation for the clamp depth. The clamp material is brass with nickel plating, the screw is brass with nickel plating — both resist galvanic corrosion when used with copper conductors.","metaTitle":"TE Connectivity 1546218-3 Buchanan Terminal Block, 3 Pos","metaDescription":"TE Connectivity 1546218-3 Buchanan PCB terminal block, 3 positions, 5.08mm pitch, 17.5A, 300V, rising cage clamp, gray PA66 housing. Sourced to order.","metaKeywords":null},"attributes":{"series":"Buchanan","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Wire-to-Board Connectors","Wire-to-Board Headers"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Color":"Gray","Pitch":"0.200\\\" (5.08mm)","Series":"Buchanan","Current":"17.5 A","Package":"Bulk","Voltage":"300 V","Features":"Interlocking (Side)","Wire Gauge":"12-30 AWG","Screw Thread":"M3","Mounting Type":"Through Hole","Product Status":"Active","Torque - Screw":"0.79 Nm (7.0 Lb-In)","lifecycle_stage":"unknown","Housing Material":"Polyamide (PA66), Nylon 6/6","Number of Levels":"1","Wire Termination":"Screw - Rising Cage Clamp","Mating Orientation":"Horizontal with Board","Base Product Number":"1546218","Positions Per Level":"3","Operating Temperature":"-40°C ~ 105°C","Clamp Material - Plating":"Brass - Nickel Plated","Screw Material - Plating":"Brass - Nickel Plated","Contact Material - Plating":"Brass - Tin Plated"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2600","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.26000","currency":"USD"},{"qty":10,"price":"$1.18000","currency":"USD"},{"qty":25,"price":"$1.13600","currency":"USD"},{"qty":50,"price":"$1.12520","currency":"USD"},{"qty":100,"price":"$1.01540","currency":"USD"},{"qty":250,"price":"$0.98244","currency":"USD"},{"qty":500,"price":"$0.89462","currency":"USD"},{"qty":1000,"price":"$0.80131","currency":"USD"},{"qty":5000,"price":"$0.72447","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1546218-3","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/1546218-3 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}}