The H11F3SM is an optocoupler consisting of a gallium arsenide (GaAs) infrared emitting diode driving a silicon bilateral analog FET in a surface mount package. Manufactured by Fairchild/ON Semiconductor, it provides electrical isolation between the input and output circuits while enabling signal transmission. It's well-suited for applications requiring precise analog signal isolation, such as data acquisition systems, medical equipment, and industrial control systems.

Applications

• Analog signal isolation
• Data acquisition systems
• Medical equipment
• Industrial control systems
• Voltage level shifting

Features

• Analog signal isolation
• Surface mount package
• High isolation voltage
• Low input current requirement
• Bilateral switch operation

Benefits

• Eliminates ground loops
• Protects sensitive circuits from high voltage transients
• Reduces noise and improves signal integrity
• Simplified board assembly with surface mount packaging
• Versatile for both AC and DC signal transmission

Additional Details

The H11F3SM offers a high isolation voltage, providing excellent protection against high voltage transients and ground loops. The low input current requirement makes it compatible with a wide range of digital circuits. The bilateral switch operation allows for bidirectional signal transmission. The surface mount package simplifies assembly and reduces board space. The H11F3SM's analog FET output allows for virtually distortion free switching of AC or DC analog signals. Common mode transient immunity is high. Creepage distance is excellent for its package size.