CNY17F3TM

Overview

The CNY17F3TM is a single-channel optocoupler manufactured by onsemi, featuring an infrared LED coupled to an NPN phototransistor output. It utilizes a 6-pin DIP (MDIP) package for through-hole mounting. Key electrical parameters include a maximum collector-emitter voltage of 70V and a continuous collector current of 50mA. The device offers a high isolation voltage of 4170 Vrms. Typical switching characteristics consist of a rise time of 6µs and a fall time of 24µs. The forward voltage is typically 1.65V at the specified input current.

Feature Summary

• Provides galvanic isolation between input and output circuits using an infrared LED and phototransistor configuration.
• Features a standard 6-pin MDIP package suitable for through-hole PCB mounting.
• Delivers high insulation voltage capability for safe signal transmission across potential differences.

Applications

• General-purpose signal isolation in industrial control systems
• Microcontroller interface circuits requiring electrical separation
• Low-speed digital communication channels

Procurement Notes

Verify the specific suffix 'TM' against the manufacturer's official datasheet to confirm pinout orientation and mechanical dimensions. Ensure the procurement source provides valid RoHS compliance documentation. Cross-reference the part number with authorized distributors to avoid counterfeit components. Confirm that the package type matches the required through-hole footprint for the target application design.

Selection Notes

Select this component when a cost-effective, general-purpose transistor-output optocoupler is required for low-speed applications. Consider the 6µs rise time limitation; it is unsuitable for high-frequency data transmission. Compare the 4170 Vrms isolation rating against system safety requirements. Evaluate the 50mA collector current limit to ensure compatibility with downstream load requirements without external amplification.

Part Context

This component belongs to the CNY17 series of optocouplers from onsemi. The series includes variants with different current transfer ratios and packaging options, such as surface-mount versions like the CNY17F3SR2VM. The CNY17F3TM specifically denotes the through-hole DIP variant within this family, maintaining consistent electrical performance across the series while differing in physical form factor.

Replacement Considerations

Compatible substitutes include other CNY17 series variants with matching pinouts and electrical ratings. Verify that alternative parts maintain the same 4170 Vrms isolation voltage and 70V collector-emitter voltage specifications. Ensure replacement devices support the same 6-pin DIP package geometry for direct board integration.