The SFH4059-U is a high-speed infrared (IR) PIN photodiode manufactured by OSRAM Opto Semiconductors. It's designed for applications requiring fast and efficient detection of infrared radiation. The device features a compact package and a wide viewing angle, making it suitable for various sensing and communication applications.

Applications

• Infrared Remote Control Systems
• Light Barriers
• Optical Data Transmission
• Proximity Sensors
• Smoke Detectors

Features

• High Sensitivity: Efficiently detects infrared radiation.
• Fast Switching Speed: Enables high-speed data transmission and detection.
• Wide Viewing Angle: Provides a broad detection range.
• Compact Package: Allows for easy integration into space-constrained designs.
• Operating Wavelength: Optimized for 850nm and 950nm IR wavelengths.
• RoHS Compliant: Environmentally friendly and complies with RoHS standards.

Benefits

• Reliable Performance: Delivers consistent and accurate detection of IR signals.
• Long Lifespan: Offers extended operational life for demanding applications.
• Easy Integration: Simplifies design and assembly processes.
• Versatile Applications: Suitable for a wide range of sensing and communication systems.
• Improved System Efficiency: High sensitivity minimizes power consumption.

The SFH4059-U photodiode is characterized by its high sensitivity and fast switching speed, making it ideal for applications where rapid detection of IR signals is crucial. Its wide viewing angle allows for flexibility in sensor placement and alignment. The compact package size enables integration into miniaturized devices. It is typically used in conjunction with IR LEDs to create complete sensing or communication systems.

The photodiode is sensitive to light in the near-infrared spectrum, peaking at around 850nm to 950nm. It operates on a reverse voltage, and the current generated is proportional to the amount of incident IR radiation. Key specifications include its spectral sensitivity, rise and fall times (related to its switching speed), and dark current (the current flowing when no light is present). Detailed specifications can be found in the OSRAM datasheet. The operating temperature range is typically between -40°C and +100°C, depending on the application.