{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AQY221N2M1Y","brand":"Panasonic Electric Works","brandSlug":"panasonic-electric-works","productSlug":"AQY221N2M1Y","canonicalUrl":"https://icboms.com/panasonic-electric-works/AQY221N2M1Y","factsUrl":"https://icboms.com/api/mcp/products/AQY221N2M1Y","rawCanonicalId":null},"summary":{"shortDescription":"Panasonic Electric Works PhotoMOS™ AQY series, SPST-NO (1 Form A) signal relay, 120 mA load current, 0 V ~ 40 V AC/DC output, 1.14 VDC input, 4-SMD package, surface mount.","salesMarkdown":"## PhotoMOS AQY — RF-rated solid-state relay for signal switching The AQY221N2M1Y is an SPST-NO (1 Form A) solid-state relay from Panasonic's PhotoMOS AQY series, designed for switching AC or DC signals up to 120 mA and 40 V. Its 12.5 Ohm max on-state resistance keeps insertion loss low in RF and instrumentation paths. ## Load ratings and on-resistance — what they mean for signal integrity Rated for 120 mA continuous load current at 0 to 40 V across the output terminals, this relay handles low-power analog and digital signals without the mechanical bounce of an electromechanical part. The 12.5 Ohm max on-state resistance is the series resistance the signal sees when the relay is closed — for a 50-Ohm RF line, that adds about 0.5 dB of insertion loss, which is acceptable for many test and measurement paths. The 4-SON package (2.95 mm body width) suits dense PCB layouts where board space is at a premium.","metaTitle":"Panasonic AQY221N2M1Y PhotoMOS Relay, 120 mA, 40 V, SPST-NO","metaDescription":"Panasonic AQY221N2M1Y PhotoMOS AQY signal relay, SPST-NO, 120 mA load, 40 V AC/DC, 12.5 Ohm on-resistance. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Signal Relays"],"specifications":{"Mfr":"Panasonic Electric Works","Series":"PhotoMOS™ AQY","Circuit":"SPST-NO (1 Form A)","Package":"Tape & Reel (TR) Cut Tape (CT)","Output Type":"AC, DC (RF)","Load Current":"120 mA","Mounting Type":"Surface Mount","Package / Case":"4-SMD (0.116\\\", 2.95mm)","Product Status":"Active","Voltage - Load":"0 V ~ 40 V","Voltage - Input":"1.14VDC","lifecycle_stage":"unknown","Termination Style":"SMD (SMT) Tab","Base Product Number":"AQY221","Supplier Device Package":"4-SON","On-State Resistance (Max)":"12.5 Ohms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.9500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is AQY221N2M1Y's on-state resistance and why does it matter?","answer":"The maximum on-state resistance is 12.5 Ohms. This is the resistance the output path presents when the relay is closed — it determines the insertion loss in signal paths and the voltage drop across the relay at the rated load current."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/panasonic-electric-works/AQY221N2M1Y","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/AQY221N2M1Y 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}}