150 mA load switch rated to 600 V
The AQY206GV1Y is a PhotoMOS™ AQY series solid-state relay from Panasonic Electric Works, configured as a single-pole single-throw normally-open (SPST-NO) switch. It handles a continuous load current of 150 mA across a load voltage range of 0 V to 600 V AC or DC, making it suitable for switching low-power signals or loads in test equipment, instrumentation, and industrial control where galvanic isolation is needed without mechanical contact wear.
On-state resistance and input drive
Maximum on-state resistance is 15 Ohms, which sets the voltage drop across the output at full load: at 150 mA the drop is about 2.25 V, a figure to budget into the signal path when the relay is switching low-level analog signals where series resistance affects accuracy. The tight input voltage window means the drive circuit must deliver within that band; a 3.3 V logic rail with a series resistor sized for the LED forward current works, but a 5 V rail needs a larger dropping resistor or a series diode to stay within the 1.7 V ceiling.