FOD8173SD

Overview

The FOD8173SD is a single-channel transistor output optocoupler manufactured by onsemi. It features a 4-SMD gull-wing package with 5000 Vrms isolation voltage. The device supports a maximum collector-emitter voltage of 70V and a continuous output current of 50mA. Typical rise and fall times are 4µs and 3µs, respectively. The Current Transfer Ratio ranges from 50% to 600% at 5mA forward current. Operating temperature spans -55°C to 110°C.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits
• Utilizes a compact surface-mount gull-wing package for automated assembly
• Features fast switching characteristics suitable for digital signal transmission

Applications

• Industrial communication interfaces requiring galvanic isolation
• Microcontroller input/output isolation in embedded systems
• Power supply feedback loops for voltage regulation

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and tape/reel specifications. Ensure compatibility with RoHS3 standards if required by the target application. Confirm active status directly with the manufacturer or authorized distributors before finalizing procurement plans.

Selection Notes

Select this component when 5000 Vrms isolation is mandatory alongside a compact SMD footprint. The transistor output type is appropriate for interfacing with TTL or CMOS logic inputs. Evaluate thermal management requirements given the wide operating temperature range and power dissipation limits.

Part Context

This part belongs to the FOD817 series, which includes various logic gate and transistor output variants. The SD suffix typically denotes a specific surface-mount package configuration within the broader family. It serves as a standard solution for cost-effective isolation in general-purpose electronic designs.

Replacement Considerations

FOD8173SDC is listed as an alternative part number variant.