FOD617CSD

Overview

The FOD617CSD is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output and utilizes a 4-SMD Gull Wing package for surface mount installation. The device provides 5000 Vrms insulation voltage for effective circuit isolation. Key electrical parameters include a maximum collector-emitter voltage of 70 V, a maximum collector current of 50 mA, and a forward current rating of 50 mA. Typical switching times are specified at 18 microseconds for both rise and fall durations. The unit operates within a temperature range of -55°C to +110°C and dissipates up to 200 mW.

Feature Summary

• Provides galvanic isolation between input and output circuits using optical transmission.
• Features an NPN phototransistor output stage for digital signal interfacing.
• Designed for surface mount applications with a compact four-terminal gull wing footprint.

Applications

• General purpose signal isolation in industrial control systems
• Interface circuits for microcontrollers and logic families
• Power supply feedback loops requiring low-speed isolation

Procurement Notes

Verify the component status carefully before procurement as this specific part number may be obsolete or discontinued. Confirm availability through authorized distributors only. Ensure that any substitute components meet the required isolation voltage and package dimensions. Check for RoHS compliance documentation if environmental regulations apply to your assembly process. Validate pinout compatibility if replacing existing designs.

Selection Notes

Select this component when a standard transistor output optocoupler is required for basic isolation tasks. Consider the 18 microsecond switching speed limitations for high-frequency applications. Evaluate the 5000 Vrms isolation rating against system safety requirements. Compare physical dimensions of the 4-SMD package against PCB layout constraints. Assess thermal dissipation capabilities within the operating temperature range.

Part Context

This device belongs to the general-purpose optocoupler category from onsemi. It serves as a fundamental building block for electrical isolation in electronic circuits. The product line typically includes variants with different packaging options and performance characteristics. This specific model targets cost-sensitive applications requiring reliable DC signal transmission across isolated boundaries.

Replacement Considerations

FOD817CSD is listed as a similar available substitute. Verify pinout compatibility and electrical specifications before substitution. Ensure the replacement meets all isolation and current ratings required by the original design.