{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AQY221N3M1Y","brand":"Panasonic Electric Works","brandSlug":"panasonic-electric-works","productSlug":"AQY221N3M1Y","canonicalUrl":"https://icboms.com/panasonic-electric-works/AQY221N3M1Y","factsUrl":"https://icboms.com/api/mcp/products/AQY221N3M1Y","rawCanonicalId":null},"summary":{"shortDescription":"Panasonic Electric Works PhotoMOS™ AQY series, Signal Relay, SPST-NO (1 Form A), 150 mA, 25 V, 7.5 Ohm on-resistance, 4-SON, Surface Mount.","salesMarkdown":"## RF signal switching with PhotoMOS isolation The AQY221N3M1Y is a normally-open single-pole solid-state relay from the PhotoMOS AQY series, designed for low-level AC and DC signal switching including RF paths up to the relay's bandwidth limits. Rated for 150 mA continuous load current across a 0 V to 25 V load voltage range, with a maximum on-state resistance of 7.5 Ohms — the R_on figure sets the insertion loss for the signal path and the self-heating at the rated current. ## Package and board integration Housed in a 4-pin SON package (4-SON, supplier device package code) measuring 2.95 mm on the longest side — a compact footprint for dense PCB layouts where isolation between control and load sides is required. Surface-mount termination with SMD tabs; the tape-and-reel packaging supports automated pick-and-place assembly. The 4-SON body has no exposed thermal pad — the 7.5 Ohm on-resistance at 150 mA dissipates about 170 mW, which the package handles without additional copper area beyond the signal traces.","metaTitle":"Panasonic AQY221N3M1Y PhotoMOS Relay, SPST-NO, 150 mA","metaDescription":"Panasonic AQY221N3M1Y PhotoMOS AQY series RF relay, SPST-NO, 150 mA load, 25 V, 7.5 Ohm on-resistance, 4-SON. 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)","Output Type":"AC, DC (RF)","Load Current":"150 mA","Mounting Type":"Surface Mount","Package / Case":"4-SMD (0.116\\\", 2.95mm)","Product Status":"Active","Voltage - Load":"0 V ~ 25 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)":"7.5 Ohms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.2294","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the on-resistance of AQY221N3M1Y and why does it matter?","answer":"Maximum on-state resistance is 7.5 Ohms. For a 150 mA load this produces roughly 170 mW of self-heating; more importantly, the R_on value directly sets the insertion loss in an RF or low-level analog signal path — a lower R_on means less signal attenuation through the relay."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/panasonic-electric-works/AQY221N3M1Y","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/AQY221N3M1Y 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}}