CNY17F2

Overview

The CNY17F2 is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output with no base connection, housed in a standard 6-pin DIP package. The device provides electrical isolation with a rated insulation voltage of 5300 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 70 V and a maximum collector current of 50 mA. The forward voltage is typically 1.65 V at a maximum forward current of 60 mA. The unit operates within a temperature range of -40°C to +100°C and has a power dissipation rating of 270 mW.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits using infrared LED and phototransistor technology.
• Features a standard six-pin dual in-line package suitable for through-hole mounting applications.
• Offers reliable signal transmission with defined current transfer ratios for digital switching operations.

Applications

• Industrial control systems requiring circuit isolation
• Power supply feedback loops
• Microcontroller interface circuits

Procurement Notes

Verify the specific suffix code (e.g., TVM, SR2VM) against the required packaging format, as these indicate variations such as bulk or reel quantities. Confirm that the insulation voltage rating matches the safety requirements of the target application, noting that some variants may differ from the base model's 5300 Vrms specification. Ensure compliance with RoHS directives if applicable to the project constraints.

Selection Notes

Select this component when a standard DIP-6 form factor is required for prototyping or low-volume production. Consider alternative surface-mount variants like the CNY17F2SVM if automated assembly is necessary. Evaluate the current transfer ratio specifications to ensure adequate noise margin for the intended logic levels. Verify thermal management capabilities given the 270 mW power dissipation limit under operating conditions.

Part Context

This component belongs to the CNY17 series of optocouplers, widely used for general-purpose isolation. The F2 designation typically indicates specific current transfer ratio bins compared to other letters in the family. It serves as a cost-effective solution for basic galvanic isolation needs in consumer and industrial electronics where high-speed switching is not the primary requirement.

Replacement Considerations

Direct replacements include the CNY17F2TVM for through-hole bulk packaging or CNY17F2SR2VM for surface-mount reel packaging. Verify pinout compatibility and insulation voltage ratings before substitution. Other manufacturers offer equivalent transistor-output optocouplers, but parameter matching is essential for direct interchangeability.