FOD617D3SD

Overview

The FOD617D3SD is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output housed in a 4-SMD (PDIP-4 Gull Wing) surface-mount package. Key electrical specifications include a maximum collector-emitter voltage of 70 V, a continuous collector current of 50 mA, and an isolation voltage of 5000 Vrms. The device operates with a forward current up to 50 mA and has a typical current transfer ratio of 200%. Rise and fall times are specified at 18 µs each. It supports a power dissipation of 200 mW and functions within a temperature range of -55°C to +110°C.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits via optical coupling.
• Utilizes an NPN phototransistor for robust digital signal transmission.
• Designed for surface-mount assembly to facilitate automated PCB integration.

Applications

• General-purpose signal isolation in industrial control systems
• Microcontroller interface circuits requiring galvanic separation
• Power supply feedback loops for voltage regulation

Procurement Notes

Verify the specific suffix '3SD' corresponds to the required tape-and-reel packaging configuration. Confirm that the 4-SMD gull-wing footprint matches the target PCB design. Ensure the 5000 Vrms isolation rating meets the safety requirements of the end application. Cross-reference the datasheet for any recent product change notices affecting material composition or manufacturing location.

Selection Notes

Select this component when a low-cost, general-purpose transistor output isolator is sufficient for moderate-speed applications. The 18 µs switching speed limits suitability for high-frequency data communication. Consider alternative logic-output optocouplers if faster propagation delays are required. Verify that the 70 V collector-emitter voltage provides adequate headroom for the load circuit.

Part Context

This part belongs to the FOD617 family of transistor output optocouplers from onsemi. These devices are widely used for basic isolation tasks where cost-effectiveness and reliability are prioritized over high-speed performance. The family typically includes various package options and output configurations to suit different board space and isolation voltage requirements.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official manufacturer cross-reference tools for verified equivalents.