The ASSR-4111 is a miniature surface mount single channel half-pitch phototransistor optocoupler from Avago Technologies. Similar to the ASSR-4110, it's designed for high-density mounting applications where minimal board space is crucial. It provides electrical isolation between input and output circuits, ensuring safe and reliable signal transmission in diverse applications.

Applications

• Digital logic input isolation
• Microprocessor system interface
• Isolated analog signal transmission
• Switching power supplies
• Programmable controllers

Features

• Miniature surface mount package
• High current transfer ratio (CTR)
• High isolation voltage
• Low input current requirement
• Compatible with reflow soldering

Benefits

• Optimizes board space utilization due to its compact size
• Offers dependable electrical isolation
• Ensures compatibility with a wide range of logic circuits
• Minimizes power consumption in the input circuit
• Streamlines the manufacturing process with surface mount technology

Additional Details

The ASSR-4111 consists of a GaAlAs infrared emitting diode optically coupled to a silicon NPN phototransistor. It boasts a high current transfer ratio (CTR), typically varying from 100% to 600% based on the part marking and operating conditions. The isolation voltage is typically 3750 VRMS. It operates within a temperature range of -40°C to +85°C. This optocoupler is engineered to comply with rigorous safety standards, making it suitable for use in challenging industrial environments.