This post explains for the semiconductor A5W-K.
The Part Number is A5W-K.
The function of this semiconductor is Solid State relays.
Manufacturers : Fujitsu Microelectronics
Preview images :
MINIATURE RELAY 2 POLES—1 to 2 A (FOR SIGNAL SWITCHING) A SERIES q s FEATURES Extremely low profile and light weight —Height: 5 mm —Weight: approximately 1.2 g UL, CSA recognized Conforms to FCC rules and regulations part 68 —Surge strength 1,500 V High reliability—bifurcated contacts Wide operating range DIL pitch terminals Plastic sealed type Latching version available q q q q q q q s ORDERING INFORMATION [Example] (a) (b) (c) (d) (e) (f ) A (a) L – D (b) (*) (c) 12 (d) W – K (e) (f ) A : A Series Nil : Standard type L : Latching type Nil : Single winding type D : Double winding type Refer to the COIL DATA CHART W : Bifurcated type K : Plastic sealed type Series Name Operation Function Number of Coil Nominal Voltage Contact Enclosure Note: Actual marking omits the hyphen (-) of (*) s SAFETY STANDARD AND FILE NUMBERS UL478, 508 (File No. E45026) C22.2 No. 14 (File No. LR35579) Nominal voltage 1.5 to 48 VDC 0.5 A 2A 0.3 A 125 VAC 30 VDC 11 […]