Photodiodes

High-Performance Photodiodes & Light Sensors

Photodiodes are specialized semiconductor devices designed to convert light energy into electrical current. Unlike LEDs which emit light, photodiodes act as high-speed light sensors. Queendom offers a comprehensive range of photodiodes featuring PIN junction structures for superior sensitivity and fast response times.

Key Features & Specifications

• Working Principle: Operates under reverse bias. Light incidence generates electron-hole pairs, creating a photocurrent proportional to light intensity. Features ultra-low dark current when unlit.
• Spectral Range: Coverage from 400nm (UV/Visible) to 1100nm (Near-Infrared). Popular wavelengths include 850nm and 940nm for IR applications.
• Package Types: Available in SMD (Surface Mount) and DIP (Through-hole, Φ3mm, Φ5mm) packages with various lens angles (clear, black epoxy).
• Performance: High sensitivity, fast response time, and excellent linearity for precise signal detection.