{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"RE46C122E16F","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"RE46C122E16F","canonicalUrl":"https://icboms.com/microchip/RE46C122E16F","factsUrl":"https://icboms.com/api/mcp/products/RE46C122E16F","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology RE46C122E16F CMOS smoke detector IC, ionization input, voltage output, 9 µA supply, -10°C to 60°C, 16-DIP (0.300\", 7.62mm) through-hole package, tube.","salesMarkdown":"## Ionization smoke detector IC for battery-powered alarms The Microchip Technology RE46C122E16F is a CMOS ionization-type smoke detector IC designed for standalone or interconnected alarms. The ionization input type means the IC is optimised for the small sensing current from an ionization chamber — the kind that responds fastest to fast-flaming fires with small particles. The voltage output drives the alarm horn or control relay directly, with no external buffer needed for most piezoelectric sounders. ## Through-hole DIP for prototyping and legacy service The 16-PDIP supplier device package is the same footprint used by earlier generation smoke detector ICs, so a board spin is not required when migrating from an older part. Operating temperature range is -10°C to 60°C — this covers residential and commercial indoor environments but not unheated attics or outdoor enclosures. For cold storage or unconditioned spaces, check that the ambient stays above -10°C.","metaTitle":"Microchip RE46C122E16F Smoke Detector IC, 9 µA, 16-DIP","metaDescription":"Microchip RE46C122E16F CMOS ionization smoke detector IC. 9 µA supply, -10°C to 60°C, 16-DIP. Active, RoHS3 compliant. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Smoke Detector","Package":"Tube","Input Type":"Ionization","Output Type":"Voltage","Mounting Type":"Through Hole","Package / Case":"16-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Current - Supply":"9 µA","Operating Temperature":"-10°C ~ 60°C","Supplier Device Package":"16-PDIP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.12","priceTiers":[{"qty":1,"price":"$1.12000","currency":"USD"},{"qty":25,"price":"$0.94480","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/04b6cf5ab8c56ee6cde6073562048491.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/RE46C122E16F/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/RE46C122E16F","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/RE46C122E16F when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}