What the AQY272AX solid-state relay delivers
The AQY272AX is a PhotoMOS AQY series solid-state relay in the 4-SMD gull-wing package, rated 2 A maximum load current at up to 60 V load voltage — so it handles low-power AC or DC loads (indicator lamps, solenoid valves, PLC inputs) without the contact wear of an electromechanical relay. Maximum on-state resistance is 180 mΩ — at 2 A that is 0.72 W of dissipation in the conduction path, so the relay body needs adequate board copper or a thermal via array to stay within its operating temperature window.
Input drive and what 1.16 VDC means for the control circuit
The LED trigger voltage is listed at 1.16 VDC — this is the forward voltage the PhotoMOS LED must see to actuate. The logic-level compatibility of the driving rail (3.3 V, 5 V, or 24 V control) determines whether a current-limiting resistor is required; the datasheet drive circuit section specifies the LED current needed to hit the rated on-state resistance. Because PhotoMOS relays have no coil, there is no inductive kickback on release — the input side is purely an LED with a defined forward voltage range, making the drive simpler than a flyback-clamped relay coil.
SMT footprint and the gull-wing termination
Tape-and-reel packaging makes it suitable for SMT pick-and-place in volume production; the gull-wing coplanarity must be verified on incoming inspection before reflow if the reels have been in extended storage.
Active status and the AQY272 base product number
Listed as Active — the AQY272 base product number groups the family variants; the AQY272AX suffix carries the tape-and-reel orientation and specific LED drive characteristics consistent with the AQY272 series footprint.