This part is a kind of semiconductor called AQY221R2V.

Function of this product has PhotoMOS Relays.

Manufacturers : Panasonic

Image and pinout :

Some of the text within the PDF file :

RF SSOP 1 Form A C×R10/C×R5 (AQY221❍❍V) Miniature SSOP C✕R10: 30 V and 40 V load voltage RF SSOP 1 Form A C×R10/C×R5 C✕R5: 25 V load voltage (AQY221❍❍V) 2.65 .104 1 2 4.45 .175 1.80 .071 mm inch 4 3 FEATURES 1. Miniature package (SSOP) using a new flat lead terminal shape Compared to previous models (SOP 4pin), mounting area can be reduced by approximately 53%*. This contributes to improved output signal transit characteristics. Previous SOP SSOP TYPICAL APPLICATIONS 1. Measuring and testing equipment Semiconductor testing equipment, Probe cards, Datalogger, Board tester and other testing equipment 2. Telecommunication and broadcasting equipment 3. Medical equipment RoHS compliant Flat lead *Comparison of area of SSOP and SOP 4-pin (including leads). 2. Bo [ ... ]

AQY221R2V PDF Datasheet Download