The SFH4551 is a high-power infrared (IR) emitter designed for applications requiring efficient and powerful IR radiation. Manufactured by OSRAM Opto Semiconductors Inc., it's optimized for use in a broad array of applications, including remote control systems, security systems, and industrial automation.

Applications:

• Remote Control Systems: Functions as the infrared transmitter in remote controls for TVs, DVD players, and other consumer electronic devices.
• Security Systems: Integrated within intrusion detection systems and surveillance equipment.
• Light Barriers and Proximity Sensors: Used in industrial automation for object detection, distance measurement, and safety applications.
• IR Illumination: Serves as a light source for night vision systems, security cameras, and other low-light imaging applications.
• Gesture Recognition: Employed in interactive devices capable of responding to hand gestures and other movements.

Features:

• High Radiant Intensity: Delivers a strong and focused beam of infrared light for efficient transmission.
• Narrow Beam Angle: Provides precise targeting and minimizes interference from ambient light sources.
• Fast Switching Speed: Enables quick response times for high-speed data transmission and accurate sensing applications.
• Compact Package: Facilitates easy and seamless integration into various electronic designs.
• RoHS Compliant: Complies with environmental regulations restricting the use of hazardous substances.

Benefits:

• Improved System Performance: The high radiant intensity and narrow beam angle of the SFH4551 greatly enhance the performance of IR-based systems.
• Enhanced Accuracy: Ensures reliable and accurate object detection and distance measurement.
• Reliable Operation: OSRAM's commitment to quality guarantees consistent and dependable performance over the device's operational life.
• Simplified Integration: The compact package design simplifies the integration process into existing and new applications.
• Cost-Effective Solution: Offers an excellent balance of high performance and cost-effectiveness.

Additional Details:

The SFH4551 emits infrared light at a specific wavelength, typically around 940 nm. The device's narrow beam angle provides focused transmission, which minimizes interference from ambient light and improves the signal-to-noise ratio. This component is generally driven using a pulsed current to achieve greater radiant intensity. To protect the LED from damage, a current-limiting resistor is crucial. Depending on the driving current and ambient temperature, heat sinking may be required. The typical forward voltage ranges from 1.3V to 1.7V. For the most accurate and up-to-date specifications and application guidelines, always refer to the official OSRAM datasheet.