{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AQY221FN2VY","brand":"Panasonic Electric Works","brandSlug":"panasonic-electric-works","productSlug":"AQY221FN2VY","canonicalUrl":"https://icboms.com/panasonic-electric-works/AQY221FN2VY","factsUrl":"https://icboms.com/api/mcp/products/AQY221FN2VY","rawCanonicalId":null},"summary":{"shortDescription":"Panasonic Electric Works PhotoMOS™ AQY series, Signal Relay, SPST-NO (1 Form A), Surface Mount, 4-SMD (0.175\", 4.45mm), 120 mA, 0 V ~ 40 V, 1.3VDC.","salesMarkdown":"## PhotoMOS AQY — RF signal switching in a compact SSOP The AQY221FN2VY is a Panasonic Electric Works PhotoMOS™ AQY series relay, SPST-NO (1 Form A), designed for switching low-level AC or DC signals including RF paths up to 40 V. Rated at 120 mA continuous load current with a maximum on-state resistance of 12.5 Ohms, the relay suits applications where a mechanical relay's contact bounce or limited life would be a problem — test equipment, telecom line cards, and medical sensor front-ends. ## Obsolete — sourcing through independent channels Panasonic has marked the AQY221FN2VY as obsolete. Available through independent surplus and broker channels. The 4-SSOP package and SMD tab termination mean the footprint is shared with other AQY221 variants — a BOM review against the original design's load current and voltage limits is the first step before committing a replacement. ## Parametric fit — what the ratings mean for your BOM 120 mA load current at 40 V maximum defines the switching envelope — this relay is sized for signal-level paths, not power. The 12.5 Ohm on-resistance introduces a voltage drop of about 1.5 V at full load, which matters for low-voltage analog or RF signal chains where insertion loss must be budgeted. The 1.3 VDC input threshold means a standard 3.3 V GPIO can drive it directly through a current-limiting resistor — no level translator needed. The SPST-NO form closes the signal path when the input is energised, which is the fail-safe-open configuration for most test and instrumentation switching.","metaTitle":"Panasonic AQY221FN2VY PhotoMOS Relay, SPST-NO, 120 mA, 40 V","metaDescription":"Obsolete Panasonic AQY221FN2VY PhotoMOS relay, SPST-NO, 120 mA load, 40 V, 12.5 Ohm on-resistance.","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-SMD (0.175\\\", 4.45mm)","Product Status":"Obsolete","Voltage - Load":"0 V ~ 40 V","Voltage - Input":"1.3VDC","lifecycle_stage":"unknown","Termination Style":"SMD (SMT) Tab","Base Product Number":"AQY221","Supplier Device Package":"4-SSOP","On-State Resistance (Max)":"12.5 Ohms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.0200","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the AQY221FN2VY?","answer":"The AQY221FN2VY is obsolete per Panasonic."},{"question":"What is the AQY221FN2VY used for?","answer":"It is a PhotoMOS solid-state relay for switching low-level AC, DC, or RF signals up to 120 mA and 40 V. Typical applications include ATE signal routing, telecom line switching, and medical sensor multiplexing where silent, bounce-free operation is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/panasonic-electric-works/AQY221FN2VY","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/AQY221FN2VY 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}}