CNY17-2 Phototransistor Output Optocoupler DIP-6 (CNY17-2 DIP IC)
The CNY17-2 is an optically coupled pair consisting of a Gallium Arsenide (GaAs) infrared-emitting diode and a silicon NPN phototransistor in a 6-pin dual-in-line package. This IC provides electrical isolation between an input control circuit and an output load. It is characterized by a higher Current Transfer Ratio (CTR) compared to the CNY17-1, ranging from 63 percent to 125 percent at a 10mA forward current. It is designed to transfer digital or analog signals while protecting sensitive components from high-voltage transients and eliminating ground loops.
This IC is primarily used in feedback loops for switch-mode power supplies, microprocessor system interfaces, and industrial automation controllers. It is a fundamental component for Arduino electronics projects in India for reliable signal isolation, building isolated logic gates, and safe interfacing with 12V or 24V industrial sensors.
Key Features
- High isolation test voltage (5300 Vrms)
- Current Transfer Ratio (CTR) of 63 percent to 125 percent
- High reliability and long-term stability
- Low coupling capacitance (typically 0.6pF)
- Standard 6-pin DIP package for easy through-hole mounting
- Fast switching time (typically 3 microseconds)
- Access to phototransistor base for custom biasing
- High collector-emitter voltage (70V minimum)
Specifications
- IC Type = Phototransistor Optocoupler
- Isolation Voltage = 5300 Vrms
- Forward Current (If) = 60mA (Maximum)
- Collector-Emitter Voltage (VCEO) = 70V
- Collector Current (Ic) = 50mA (Continuous)
- CTR Range = 63 percent to 125 percent
- Package Type = DIP-6
- Number of Pins = 6
- Mounting Type = Through-Hole
- Operating Temperature = -55 to 110 degrees Celsius
Interfaces
- PIN 1 (ANODE) = Infrared LED Anode (+)
- PIN 2 (CATHODE) = Infrared LED Cathode (-)
- PIN 3 (NC) = No Connection
- PIN 4 (EMITTER) = Phototransistor Emitter
- PIN 5 (COLLECTOR) = Phototransistor Collector
- PIN 6 (BASE) = Phototransistor Base
