PHOTORELAY SPST 2.5A 40V SOP-4
APSEMI

Bypass caps, pull-ups, strapping resistors, custom silkscreen & more
Design a Custom BoardSolid-state photorelay with integrated LED input and MOSFET output for AC/DC load switching. Rated for 40V, 2.5A with 2500V isolation and minimal on-resistance of 0.06Ω. Ideal for telecom, data acquisition, medical equipment, and industrial control applications requiring bounce-free, EMI-immune switching without mechanical wear.
This 4-pin SOP photorelay is too small and tightly pitched (2.54mm) for reliable hand soldering or breadboard use. A breakout board brings the pins to standard 0.1-inch spacing, enabling rapid prototyping of optoisolated switching circuits without the frustration of soldering microscopic leads or dealing with isolation requirements.
ELECTRICAL CHARACTERISTICS
| Manufacturer | APSEMI |
| Part Number | GAQY211G2S |
| Package | SOP-4 (3.8×4.1mm, P2.54mm) |
| Pin Count | 4 |
| Circuit | SPST-NO (1 Form A) |
| Load Current | 2.5 A |
| On-State Resistance (Max) | 0.06 Ohms |
| Output Type | AC, DC |
| Voltage - Input | 1.2 ~ 1.4VDC |
| Voltage - Load | 0 V ~ 40 V |
BILL OF MATERIALS
PCB SPECIFICATIONS
< 0.9" (straddles breadboard)
2.54mm standard
Lead-free, reflow assembled
FR4, lead-free HASL