VISHAY CNY17F-3 Phototransistor Optocoupler, DIP, 6-Pin, 60mA, 5kV

The VISHAY CNY17F-3 is a highly reliable, 1-channel phototransistor output optocoupler, packaged in a standard 6-pin DIP (Dual In-line Package). It forms a critical isolation component by combining a gallium arsenide infrared emitting diode with a silicon NPN phototransistor in a single, compact unit. This design allows for the transmission of signal information, including DC levels, while ensuring a high degree of electrical isolation between the input and output circuits, safeguarding sensitive components from voltage spikes and noise.

A key specification is its impressive minimum Current Transfer Ratio (CTR) of 100%, guaranteeing efficient signal transfer. With a high isolation test voltage of 5000Vrms (5kV), it provides robust protection, making it suitable for applications where safety and signal integrity are paramount. The device offers excellent long-term stability and can handle a forward current (If) of up to 60mA.

Applications & Benefits

This optocoupler is an excellent, solid-state replacement for electromechanical relays and transformers in many digital interface scenarios, simplifying design and improving reliability. Its capabilities also extend to analogue applications, such as modulating signals in CRT displays. It is ideally suited for communication systems and networking equipment, where electrical isolation between different circuit sections is essential to prevent ground loops and protect against transients.

Key Specifications

• Channel Count: 1 Channel
• Output Type: Phototransistor with base connection
• Package: 6-Pin DIP
• Maximum Forward Current (If): 60mA
• Isolation Voltage: 5kV (5000Vrms)
• Minimum CTR (Current Transfer Ratio): 100%
• Collector-Emitter Voltage (Vceo): 80V
• Internal Construction: GaAs IR diode coupled to Si NPN phototransistor

By incorporating the **VISHAY CNY17F