CNY17-4X009T

Transistor, Photovoltaic Output Optoisolators Overview

The CNY17-4X009T is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an NPN phototransistor with base connection housed in a 6-SMD gull-wing package. The device provides 5000 Vrms isolation voltage and supports a maximum forward current of 60 mA with a typical forward voltage of 1.39 V. The collector-emitter saturation voltage is maximized at 400 mV, while the collector-emitter voltage reaches 70 V. Current transfer ratio ranges from 100% to 200% at 10 mA input. Switching times include rise and fall times of approximately 2 µs. Operating temperature spans from -55°C to +110°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates an infrared emitting diode with an NPN phototransistor having a base terminal for enhanced switching control.

Transistor, Photovoltaic Output Optoisolators Applications

• General purpose signal isolation in industrial control systems
• Interface circuits between microprocessors and power stages
• Solid-state relay driver applications

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix X009T corresponds to the required tape and reel packaging configuration. Confirm that the 6-SMD gull-wing footprint matches the target PCB layout. Ensure the 5000 Vrms isolation rating meets the safety requirements of the intended application environment. Cross-reference the current transfer ratio specifications against circuit design margins.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a surface-mount solution with base-controlled phototransistor output is required. The wide operating temperature range suits harsh environments. Compare the 100-200% current transfer ratio against other CNY17 variants if higher gain is needed. Consider the 6-SMD package dimensions for space-constrained designs.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the CNY17 series of transistor output optocouplers. It shares the fundamental architecture with through-hole equivalents but utilizes a surface-mount form factor. The series is widely recognized for general-purpose isolation tasks. Other variants in the family differ primarily in current transfer ratio bins and packaging styles.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

• CNY17-3X009T
• CNY17-2X009T

Transistor, Photovoltaic Output Optoisolators FAQ

What is the function of the base terminal on the phototransistor?

The base terminal allows for external control of the phototransistor's sensitivity and switching speed, enabling faster turn-off times compared to devices without a base connection.

Does the CNY17-4X009T support zero-crossing detection?

No, this device is a standard transistor output optocoupler and does not include internal zero-crossing circuitry found in triac output variants.