The CNY71 is a single channel phototransistor optocoupler manufactured by Vishay. This device consists of an infrared emitting diode optically coupled to a silicon planar phototransistor. It is designed for electrical isolation in various applications, ensuring that high voltage or noisy signals do not interfere with sensitive circuits.

Applications:

• Switching power supplies
• Motor control
• Signal transmission between circuits with different ground potentials
• Industrial control systems
• Data communication

Features:

• High isolation voltage
• Compact package
• High current transfer ratio (CTR)
• Low saturation voltage
• RoHS compliant

Benefits:

• Provides excellent electrical isolation between input and output circuits.
• Saves board space due to its small size.
• Offers efficient signal transfer.
• Ensures minimal voltage drop in the output circuit.
• Complies with environmental regulations.

Technical Specifications:

The CNY71 features a collector-emitter voltage (VCEO) of typically 70V and an isolation voltage of 5 kVrms. The current transfer ratio (CTR) varies depending on the specific grade (e.g., CNY71GB, CNY71FB). The forward voltage of the infrared emitting diode is approximately 1.25V, and the collector current is typically in the range of milliamperes. The operating temperature range is from -55°C to +100°C. The package is a standard DIP-4 (Dual In-Line Package) or surface mount options may be available.