{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AQY221N2SY","brand":"Panasonic Electric Works","brandSlug":"panasonic-electric-works","productSlug":"AQY221N2SY","canonicalUrl":"https://icboms.com/panasonic-electric-works/AQY221N2SY","factsUrl":"https://icboms.com/api/mcp/products/AQY221N2SY","rawCanonicalId":null},"summary":{"shortDescription":"Panasonic Electric Works PhotoMOS™ AQY series, Signal Relays, AQY221N2SY, SPST-NO (1 Form A), 120 mA, 0 V ~ 40 V, Surface Mount, 4-SOP, Gull Wing.","salesMarkdown":"## Obsolete PhotoMOS relay — what the specs mean for a replacement search The AQY221N2SY is a Panasonic PhotoMOS AQY series solid-state relay, SPST-NO (1 Form A), rated for 120 mA load current at 0–40 V AC/DC (RF-rated output). Its 12.5 Ohm max on-state resistance means the relay drops about 1.5 V at full load — that voltage drop is the main thermal contributor in a signal path, not the load current itself. Surface-mount only; the tape-and-reel packaging (TR) is the standard delivery format for pick-and-place assembly. ## Lifecycle reality — obsolete, no direct successor Panasonic has marked the AQY221N2SY as obsolete.","metaTitle":"AQY221N2SY Panasonic PhotoMOS, SPST-NO, 120 mA, 40 V, 4-SOP","metaDescription":"AQY221N2SY Panasonic PhotoMOS AQY series, SPST-NO, 120 mA load, 40 V, 12.5 Ohm on-resistance, 4-SOP. Obsolete, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Signal Relays"],"specifications":{"Mfr":"Panasonic Electric Works","Series":"PhotoMOS™ AQY","Circuit":"SPST-NO (1 Form A)","Package":"Tape & Reel (TR)","Output Type":"AC, DC (RF)","Load Current":"120 mA","Mounting Type":"Surface Mount","Package / Case":"4-SOP (0.173\\\", 4.40mm)","Product Status":"Obsolete","Voltage - Load":"0 V ~ 40 V","Voltage - Input":"1.14VDC","lifecycle_stage":"unknown","Termination Style":"Gull Wing","Base Product Number":"AQY22","Supplier Device Package":"4-SOP","On-State Resistance (Max)":"12.5 Ohms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.0800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/35c529f187256195b63c75f746558a30.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/AQY221N2SY/alternatives.json"},"ai":{"faq":[{"question":"What is the AQY221N2SY used for?","answer":"It is a solid-state relay (PhotoMOS AQY series) switching AC or DC signals up to 120 mA and 40 V, with an RF-rated output path. The SPST-NO contact and low 1.14 V input make it suitable for signal routing, multiplexing, and low-power load switching in test equipment, instrumentation, and telecom cards."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/panasonic-electric-works/AQY221N2SY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/panasonic-electric-works/AQY221N2SY when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}