FOD617DSD

Overview

The FOD617DSD is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output and operates within a temperature range of -55°C to +110°C. Key electrical parameters include a maximum collector-emitter voltage of 70 V, a maximum collector current of 50 mA, and a forward current of 50 mA. The device provides 5000 Vrms insulation voltage and has a power dissipation rating of 200 mW. Typical switching times are 18 µs for both rise and fall. The component is housed in a 4-SMD surface mount package.

Feature Summary

• Provides galvanic isolation between input and output circuits
• Utilizes an NPN phototransistor for signal transmission
• Designed for high-voltage insulation requirements

Applications

• General-purpose signal isolation
• Digital communication interfaces
• Microcontroller input/output isolation

Procurement Notes

Verify the specific suffix DSD confirms the 4-SMD surface mount package configuration. Confirm product status as obsolete or end-of-life before finalizing designs. Ensure RoHS compliance documentation matches the required manufacturing standards. Cross-reference the manufacturer part number with official datasheets to avoid confusion with through-hole variants like the PDIP-4 version.

Selection Notes

Select this component when a surface-mount footprint is required for single-channel isolation. Compare the 5000 Vrms insulation rating against system safety requirements. Evaluate the 18 µs switching speed against signal frequency needs. Consider the 200 mW power dissipation limit for thermal management in dense PCB layouts.

Part Context

This part belongs to the FOD617 series of transistor output optocouplers. It shares functional similarities with other members of the family but differs in packaging. The SMD variant allows for automated assembly processes compared to through-hole alternatives. It serves as a compact solution for isolating low-power digital signals.

Replacement Considerations

Direct substitutes may include other 4-SMD transistor output optocouplers with matching 5000 Vrms ratings. Verify pinout compatibility and CTR specifications. Check for equivalent switching speeds and operating temperature ranges.