{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1546551-4","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"1546551-4","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1546551-4","factsUrl":"https://icsourcedirect.com/api/mcp/products/1546551-4","rawCanonicalId":null},"summary":{"shortDescription":"Buchanan 1546551-4, 4-position PCB terminal block, 3.50mm pitch, 12 A, 300 V, screw rising cage clamp, 16-28 AWG, through-hole, side entry, green housing.","salesMarkdown":"## What This 4-Position Buchanan Block Does on the Board The 1546551-4 is a 4-position, single-level PCB terminal block from the Buchanan series, with a 3.50mm pitch. It terminates wires via a screw-actuated rising cage clamp — the screw lifts a nickel-plated copper cage that presses the wire against the current bar, rather than crushing the conductor directly. This gives a repeatable, gas-tight connection across the full 16-28 AWG range without nicking strands. ## Rated for Control Circuits and Low-Power Distribution Each position is rated 12 A at 300 V. For a 3.50mm pitch block, that current is on the higher side — the rising cage clamp and tin-plated copper alloy contacts handle the thermal load without the block softening. The 300 V rating covers most 120/240 VAC control circuits and DC power supplies inside equipment. If you're landing a 16 AWG feed for a small motor contactor or a 24 VDC sensor bus, this block has the headroom. The single-level design means all four terminations are on the same plane, so wiring is straightforward and the block stays narrow on the board. ## Field Wiring and Termination Reality The rising cage clamp accepts solid or stranded wire from 16 AWG down to 28 AWG. Strip length is standard for this class — about 6-7 mm — and the screw turns until the cage rises and grips. No special tool beyond a common screwdriver; the nickel-plated screw and clamp resist corrosion in humid panel environments. The green housing is a visual cue that this is a Buchanan-series block, which helps when you're tracing circuits in a dense terminal strip. Through-hole solder tails hold the block to the board; the 3.50mm pitch gives enough room between adjacent blocks for a screwdriver bit to fit without shorting.","metaTitle":"1546551-4 Buchanan Terminal Block, 4 Position, 3.50mm, 12A","metaDescription":"1546551-4 Buchanan PCB terminal block, 4 positions, 3.50mm pitch, 12 A, 300 V, screw rising cage clamp, 16-28 AWG, green, RoHS. Sourced to order.","metaKeywords":null},"attributes":{"series":"Buchanan","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Wire-to-Board Connectors","Wire-to-Board Headers"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Color":"Green","Pitch":"0.138\\\" (3.50mm)","Series":"Buchanan","Current":"12 A","Package":"Bulk","Voltage":"300 V","Features":"-","Wire Gauge":"16-28 AWG","Screw Thread":"-","Mounting Type":"Through Hole","Product Status":"Active","Torque - Screw":"-","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":"1546551","Positions Per Level":"4","Operating Temperature":"-40°C ~ 110°C","Clamp Material - Plating":"Copper Alloy - Nickel Plated","Screw Material - Plating":"Copper Alloy - Nickel Plated","Contact Material - Plating":"Copper Alloy - Tin Plated"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6500","priceTiers":[{"qty":1,"price":"$1.65000","currency":"USD"},{"qty":10,"price":"$1.50600","currency":"USD"},{"qty":25,"price":"$1.46200","currency":"USD"},{"qty":50,"price":"$1.44700","currency":"USD"},{"qty":100,"price":"$1.34320","currency":"USD"},{"qty":250,"price":"$1.32088","currency":"USD"},{"qty":500,"price":"$1.20216","currency":"USD"},{"qty":1000,"price":"$1.07601","currency":"USD"},{"qty":5000,"price":"$0.96470","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/1546551-4/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 1546551-4 and what is the price?","answer":"Submit an RFQ for your BOM quantity to get a firm quote."},{"question":"Does 1546551-4 support 16 AWG wire?","answer":"Yes, the 1546551-4 accepts wire from 16 AWG to 28 AWG. The rising cage clamp secures 16 AWG solid or stranded wire reliably without damaging the strands."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1546551-4","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/1546551-4 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}}