MANUFACTURER PART RECORDAQY221R2S
PanasonicAQY221R2S is a Panasonic PhotoMOS RF SOP 1 Form A solid-state relay in SOP-4, tube packing — R-type low-on-resistance variant, 40 V / 0.25 A load (0.75 A peak), AC/DC dual use, 0.8 Ω typical / 1.25 Ω maximum on-resistance, 13 pF typical output capacitance, 500 Vrms I/O isolation, 0.1 ms turn-on / 0.06 ms turn-off typical, rated −40 °C to +85 °C. The PhotoMOS construction is the selection point: an optically isolated MOSFET output with no moving contacts, so it switches small signals and loads for millions of operations where a mechanical reed relay wears out — test equipment, multiplexers and communication line switching. Selection advice: R2S is the R-type (low on-resistance); the AQY221N2S is the C-type (low capacitance: 0.12 A, 9.5 Ω typical, 1.0 pF, 1500 Vrms) in the same SOP-4 — same package, different electrical character, not interchangeable, so match the R vs N code to your load. Panasonic lists this model on its official product page; Future Electronics and RS Online list it as in stock and available for ordering. Evidence: the Panasonic official product page and datasheet ASCTB156E confirm the model number, 40 V/0.25 A rating, 0.8 Ω on-resistance and SOP-4 package. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.
Integrated CircuitsSolid-state relay (PhotoMOS)SOP-4