{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PCA9546APWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"PCA9546APWR","canonicalUrl":"https://icboms.com/texas-instruments/PCA9546APWR","factsUrl":"https://icboms.com/api/mcp/products/PCA9546APWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments PCA9546APWR, I²C/SMBus translating switch, 2.3V–5.5V supply, 16-TSSOP package, surface mount, active lifecycle, ROHS3 compliant.","salesMarkdown":"## What this I²C / SMBus translating switch does on your board The PCA9546APWR is an I²C / SMBus translating switch that connects multiple downstream buses to a single upstream controller, isolating each channel. Housed in a 16-TSSOP package (4.40 mm width), it's a surface-mount part that reworks fine with hot air if you've got a steady hand and the right nozzle. No lab bench needed — just a standard iron and some flux for the field swap. ## Active lifecycle — no LTB panic, no successor hunt ROHS3 compliant out of the gate, which clears the EU and most global regulatory gates without extra paperwork.","metaTitle":"PCA9546APWR I²C SMBus Translating Switch, 16-TSSOP, Active","metaDescription":"Texas Instruments PCA9546APWR I²C/SMBus translating switch. 2.3V–5.5V supply, 16-TSSOP package, ROHS3 compliant. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"I²C, SMBus","Applications":"Translating Switch","Mounting Type":"Surface Mount","Package / Case":"16-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.3V ~ 5.5V","Supplier Device Package":"16-TSSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.86","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.86000","currency":"USD"},{"qty":10,"price":"$1.67100","currency":"USD"},{"qty":25,"price":"$1.57680","currency":"USD"},{"qty":100,"price":"$1.34340","currency":"USD"},{"qty":250,"price":"$1.26140","currency":"USD"},{"qty":500,"price":"$1.10372","currency":"USD"},{"qty":1000,"price":"$0.91452","currency":"USD"},{"qty":2000,"price":"$0.89250","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b7913bfb6a021b7208344793bed68c7d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy PCA9546APWR?","answer":"Submit a request for current pricing and availability — we confirm both at quote time."},{"question":"What is the difference between PCA9546APWR and PCA9546ADWR?","answer":"The PCA9546APWR and PCA9546ADWR are functionally identical I²C/SMBus translating switches. The difference is the package: the APWR suffix is 16-TSSOP, while the ADWR suffix is 16-SOIC. The TSSOP is narrower (4.40 mm vs ~7.5 mm for SOIC), which matters for board area but makes manual rework slightly trickier."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/PCA9546APWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/PCA9546APWR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}