S102T02 Series and S202T02 Series Solid State Relays (SSR) are an integration of an infrared emitting diode (IRED), a Phototriac Detector and a main output Triac. These devices are ideally suited for controlling high voltage AC loads with solid state reliability while providing 3.0kV isolation (Viso(rms)) from input to output.
The S102T02 and S202T02 series are solid‑state relays (SSR) that combine an infrared emitting diode, a phototriac detector and a triac output. They are designed for high‑voltage AC load control with a 3 kV isolation rating and are available in a low‑profile 4‑pin SIP package.
These devices are suited for switching motors, fans, heaters, solenoids, valves and lighting circuits. The datasheet includes electrical characteristics, maximum ratings, design guidelines such as snubber circuit recommendations, and packaging details.
| Output current (Ir rms) | <2.0 A |
|---|---|
| Isolation voltage (Viso rms) | 3.0 kV |
| Peak off‑state voltage (Vprm) | 400 V (S102T02) / 600 V (S202T02) |
| Operating temperature range | -25 °C to +100 °C |
The relays are rated for an output current of less than 2.0 A RMS.
They provide 3.0 kV RMS isolation between input and output.