The SFH4250 is a silicon PIN photodiode designed and manufactured by OSRAM Opto Semiconductors. This device is optimized for infrared (IR) detection, making it suitable for applications that require high sensitivity and reliable performance in sensing IR radiation. The SFH4250 is often used in a variety of consumer, industrial, and medical applications due to its robust design and consistent output.

Applications

• Remote Control Systems: Used in remote controls for televisions, audio equipment, and other electronic devices to detect IR signals transmitted by the remote.
• Light Barriers and Security Systems: Employed in security systems for detecting interruptions in a light beam, triggering an alarm when the beam is broken.
• Proximity Sensors: Utilized in proximity detection applications, such as automatic doors, touchless switches, and object detection systems.
• Optical Encoders: Integrated into optical encoders for precise position and motion control in industrial and robotic applications.
• Medical Devices: Used in medical equipment for non-invasive monitoring and diagnostic purposes, such as pulse oximetry.

Features

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

Benefits

• Precise Detection: The high sensitivity ensures accurate and reliable detection of IR signals, reducing false triggers and improving the overall system performance.
• Improved System Response: The fast switching speed enables quick reaction times, enhancing the responsiveness of the system and allowing for real-time data processing.
• Versatile Applications: Suitable for a wide range of applications, providing flexibility in design and implementation for various sensing and detection needs.
• Long-Term Reliability: The robust construction and high-quality materials ensure long-term durability and consistent performance, reducing maintenance and replacement costs.
• Environmentally Friendly: Compliance with RoHS standards minimizes the environmental impact, supporting sustainability and responsible manufacturing practices.

Technical Specifications

The SFH4250 is sensitive to IR radiation within the 850-950 nm range, commonly used by IR LEDs. It is designed for reverse bias operation. Specific electrical and optical characteristics, including responsivity, dark current, and junction capacitance, are detailed in the OSRAM datasheet for the SFH4250. This datasheet provides comprehensive information for design and integration.