{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AQY221N2TW","brand":"Panasonic Electric Works","brandSlug":"panasonic-electric-works","productSlug":"AQY221N2TW","canonicalUrl":"https://icboms.com/panasonic-electric-works/AQY221N2TW","factsUrl":"https://icboms.com/api/mcp/products/AQY221N2TW","rawCanonicalId":null},"summary":{"shortDescription":"Panasonic Electric Works PhotoMOS™ AQY2 series, SPST-NO (1 Form A) solid-state relay, 120 mA load current, 0 V ~ 40 V load voltage, 12.5 Ohms on-state resistance, 4-SMD / 4-VSSOP package, surface mount.","salesMarkdown":"## RF-rated solid-state relay with 12.5 Ohm channel resistance The Panasonic AQY221N2TW is an SPST-NO (1 Form A) solid-state relay from the PhotoMOS™ AQY2 series, designed for signal-level switching where a clean, bounce-free contact closure matters more than a mechanical relay's contact rating. The output is specified for AC, DC, and RF signals, meaning the internal MOSFET pair switches bipolar signals without a polarity constraint — useful for audio crosspoints, multiplexing sensor outputs, or bypassing a gain stage in a signal chain. ## 1.14 V logic drive and surface-mount footprint The input LED turns on at 1.14 VDC — this is the guaranteed turn-on threshold, not a typical. A 1.2 V or 1.8 V logic rail drives it directly without a series resistor calculation; the input current is set by the external current-limiting resistor to the LED's absolute-max rating, which is 50 mA continuous. Housed in a 4-SMD package (1.80 mm body height) also known as 4-VSSOP, the footprint occupies about 3.5 mm × 4.5 mm on the board. The SMD (SMT) Tab termination is the standard gull-wing profile — no exposed pad to solder, so the reflow profile follows the standard JEDEC J-STD-020 for a small-outline package. The 4-pin layout is the classic PhotoMOS pinout: pins 1 and 2 are the LED input (anode and cathode), pins 3 and 4 are the MOSFET output. Polarity on the output side does not matter for DC or AC — the back-to-back MOSFETs block both directions when off and conduct both when on. The PhotoMOS AQY2 series is a mature, catalog-maintained line, so the risk of an unplanned EOL notice in the next 12–18 months is low for a standard order code. The base product number AQY221 covers multiple variants (different package options, tape-and-reel quantities); the N2TW suffix specifically denotes the 4-VSSOP package on tape-and-reel. If the BOM calls for the same die in a different package, the AQY221 base number is the cross-reference anchor.","metaTitle":"Panasonic AQY221N2TW PhotoMOS Relay, SPST-NO, 120 mA, 40 V","metaDescription":"Panasonic AQY221N2TW PhotoMOS AQY2 solid-state relay. SPST-NO, 120 mA load, 40 V, 12.5 Ohm on-resistance. Active production, RF-rated output. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Signal Relays"],"specifications":{"Mfr":"Panasonic Electric Works","Series":"PhotoMOS™ AQY2","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 (0.071\\\", 1.80mm)","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-VSSOP","On-State Resistance (Max)":"12.5 Ohms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.6700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/panasonic-electric-works/AQY221N2TW","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/AQY221N2TW 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}}