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Panasonic Electric Works AQY212S — Signal Relays

Panasonic AQY212S PhotoMOS Relay, SPST-NO, 500 mA, 60 V

MPNAQY212S
Active

Panasonic Electric Works PhotoMOS™ AQY series, SPST-NO (1 Form A) solid-state relay, 500 mA load current, 0-60 V AC/DC, 2.5 Ohm on-resistance, SOP-4 surface mount package, gull wing terminals.

$1.9900Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

AQY212S specifications
ParameterValue
SeriesPhotoMOS™ AQY
Output typeAC, DC
MountingSurface Mount
Voltage - load0 V ~ 60 V
Voltage - input1.14VDC
Load current500 mA
CircuitSPST-NO (1 Form A)
PackageTube
Case4-SOP (0.173\", 4.40mm)
Termination styleGull Wing
On-State resistance2.5 Ohms

Product details

PhotoMOS AQY212S — what the 500 mA / 60 V rating means for the BOM

The Panasonic AQY212S is a PhotoMOS solid-state relay from the AQY series, switching AC or DC loads up to 500 mA across a 0-60 V range. The SPST-NO (1 Form A) output means it closes one isolated circuit when the input LED is forward-biased at the 1.14 VDC threshold — no mechanical contacts, no bounce, no arc. The SOP-4 package's thermal path to the board must handle that continuous dissipation without exceeding the junction limit — a consideration for high-duty-cycle or always-on applications.

SOP-4 footprint and surface-mount integration

The surface-mount terminations suit reflow assembly alongside other passives and ICs on the same board.

AC/DC output — one relay for both polarities

Unlike an electromechanical relay that switches DC with a polarity-dependent arc, the PhotoMOS output stage handles AC or DC loads through the same terminals — the MOSFET back-to-back pair blocks and conducts in both directions. This simplifies the BOM when the load side could be either polarity or an AC signal.

Frequently asked questions

Where can I buy AQY212S and get current pricing?

Submit an RFQ for a firm price and lead-time estimate.

What is the closest pin-compatible alternative to AQY212S in the PhotoMOS family?

Within the same AQY series and SOP-4 package, the AQY212GH (60 V, 500 mA, SPST-NO) shares the same pinout and load ratings. The difference is the input drive: the AQY212GH has a higher LED trigger current. Check the BOM's drive-side current budget before substituting.