CNY17F-4X009T

Overview

The CNY17F-4X009T is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an NPN phototransistor output and utilizes surface-mount SMD-6 packaging. The device provides an insulation voltage of 5000 Vrms, ensuring robust isolation between input and output circuits. Key electrical parameters include a maximum collector-emitter voltage of 70 V and a maximum collector current of 50 mA. The forward current rating is 60 mA with a typical forward voltage of 1.65 V. The current transfer ratio ranges from 160% to 320%. Saturation voltage is limited to 400 mV, with rise and fall times specified at 2 µs each.

Feature Summary

• Integrates a gallium arsenide infrared emitting diode optically coupled to an NPN phototransistor for signal transmission.
• Provides high-voltage isolation capability rated at 5000 Vrms between the input LED and output phototransistor.
• Designed for surface-mount technology using a compact 6-SMD gull-wing package configuration.

Applications

• General-purpose signal isolation in industrial control systems
• Interface circuits for microprocessors and logic families
• Switching power supply feedback loops

Procurement Notes

Verify the specific suffix '4X009T' against the official Vishay datasheet to confirm the exact Current Transfer Ratio binning and tape-and-reel packaging specifications. Ensure that the SMD-6 footprint matches the target PCB design guidelines. Confirm RoHS compliance status directly from the manufacturer's latest documentation prior to final procurement decisions.

Selection Notes

Select this component when a standard NPN phototransistor output is required for cost-effective isolation applications. The 160-320% CTR range supports moderate gain requirements without additional amplification stages. Consider the 50 mA collector current limit and 70 V breakdown voltage when designing the load circuitry to ensure operation within safe absolute maximum ratings.

Part Context

This part belongs to the CNY17 family of optocouplers, which are widely recognized for their reliability in general-purpose isolation tasks. The CNY17 series typically offers various pin-out configurations and packaging options, including through-hole DIP and surface-mount variants. The 'F' designation often indicates specific material or processing variations within the Vishay portfolio compared to standard CNY17 models.

Replacement Considerations

• CNY17-4X009T

FAQ

What is the typical forward voltage of the infrared LED in the CNY17F-4X009T?

The typical forward voltage (Vf) is 1.65 V.

Does the CNY17F-4X009T include a base lead on the phototransistor?

No, the CNY17F-4X009T is a standard two-terminal phototransistor output; models with a base lead typically carry different suffixes such as '2'.