The SFH4546 is a high-speed infrared (IR) PIN photodiode manufactured by OSRAM Opto Semiconductors. It is designed for applications requiring high sensitivity and fast response times in the infrared spectrum. This photodiode is commonly used in remote control systems, light barriers, and optical data transmission.

Applications

• Infrared remote control systems.
• Light barriers.
• Optical data transmission.
• Smoke detectors.
• Proximity sensors.

Features

• High sensitivity to infrared radiation.
• Fast switching speed.
• Wide viewing angle.
• Small package size.
• RoHS compliant.

Benefits

• Reliable detection of infrared signals.
• Fast response time for quick signal processing.
• Easy integration into existing systems.
• Compact design for space-constrained applications.

Additional Details

The SFH4546 features a PIN diode structure, which provides high sensitivity and fast response times. The photodiode is sensitive to infrared radiation in the 850-950nm range, making it suitable for use with standard infrared LEDs. The wide viewing angle allows for flexible positioning of the photodiode in relation to the infrared source.

The small package size enables easy integration into compact electronic devices. The device is RoHS compliant, ensuring that it meets environmental regulations.

Typical specifications include a peak sensitivity wavelength of 880nm, a responsivity of 0.65 A/W, and a viewing angle of ±60 degrees. The rise and fall times are typically in the nanosecond range. The operating temperature range is usually between -40°C and +85°C.

The SFH4546 is a reliable and efficient infrared photodiode that provides high sensitivity and fast response times. Its small package size and wide viewing angle make it a popular choice for a wide range of applications.