The SFH4240 is a silicon PIN photodiode designed for a variety of applications requiring precise detection of infrared (IR) radiation. Manufactured by OSRAM Opto Semiconductors, this photodiode offers high sensitivity and fast switching speeds, making it suitable for demanding environments. Its robust construction and reliable performance ensure consistent operation over a wide range of conditions.

Applications

• Infrared Remote Control Systems: Used in remote controls for televisions, stereos, and other electronic devices to detect IR signals.
• Light Barriers: Employed in security systems and industrial automation to detect interruptions in a light beam.
• Optical Sensors: Utilized in various optical sensing applications, such as light meters and proximity detectors.
• Medical Devices: Integrated into medical equipment for non-invasive monitoring and diagnostics.
• Gaming Consoles: Used in motion sensing systems and interactive gaming applications.

Features

• High Sensitivity: The photodiode exhibits excellent sensitivity to infrared radiation, allowing for accurate detection of weak signals.
• Fast Switching Speed: Designed for rapid response times, enabling high-speed data transmission and detection.
• Wide Operating Temperature Range: Functions reliably across a broad temperature range, ensuring consistent performance in diverse environments.
• Compact Size: The small form factor allows for easy integration into space-constrained applications.
• RoHS Compliant: Manufactured in accordance with RoHS standards, minimizing the environmental impact of the device.

Benefits

• Precise Detection: The high sensitivity ensures accurate and reliable detection of IR signals, reducing false triggers and improving system performance.
• Improved System Response: The fast switching speed allows for quick reaction times, enhancing the responsiveness of the overall system.
• Versatile Applications: Suitable for a wide range of applications, providing flexibility in design and implementation.
• Long-Term Reliability: The robust construction and high-quality materials ensure long-term durability and consistent performance.
• Environmentally Friendly: Compliance with RoHS standards minimizes the environmental impact of the device, aligning with sustainability goals.

Technical Specifications

The SFH4240 has a spectral sensitivity range typically centered around 850-950 nm, optimized for common IR emitter wavelengths. Its active area is designed to capture a maximum amount of light. The photodiode is typically operated in reverse bias to improve response time and reduce capacitance. The specific electrical characteristics, such as responsivity, dark current, and capacitance, can be found in the OSRAM datasheet for the SFH4240.