EL817 Optocoupler DIP‑4 – High‑Isolation Phototransistor IC 🔒The EL817 DIP‑4 optocoupler is a reliable phototransistor optoisolator designed for robus..

EL817 SMD Optocoupler IC—5,000 V Isolation Transistor Output 🛡️⚡The EL817 SMD Optocoupler is a compact, high-reliability phototransistor-output isolat..

🔦 QRD1114 Reflective Optical Switch – Phototransistor SensorThe QRD1114 is a compact, reflective optical switch that integrates an IR LED emitter with..