VISHAY CNY17-3 Phototransistor Optocoupler, DIP-6, 5 kV

The VISHAY CNY17-3 is a high-performance, single-channel optocoupler featuring a phototransistor output with a base connection for enhanced control. This component consists of a gallium arsenide infrared emitting diode that is optically coupled to a silicon NPN phototransistor, providing a reliable and efficient method of signal transfer.

Its primary function is to transmit signal information, including DC levels, while maintaining a high degree of electrical isolation—up to 5 kV—between the input and output circuits. This makes it an excellent, space-saving replacement for traditional relays and transformers in a wide range of digital interface applications.

Beyond digital circuits, the CNY17-3 is also suitable for various analogue applications, such as CRT modulation, offering versatility for different design requirements. It is engineered for long-term stability, ensuring consistent performance and reliability in demanding operational environments.

Housed in a standard 6-pin DIP (Dual In-line Package), it is easy to integrate into through-hole PCB designs. With a high Current Transfer Ratio (CTR) of 100% minimum and a maximum forward current of 60 mA, this optocoupler delivers efficient signal coupling for robust industrial and communications networking systems.