DPC817D-D-TU

Overview

The DPC817D-D-TU is a single-channel transistor output optocoupler manufactured by Diodes Incorporated. It features a phototransistor output and is housed in a DIP-4 through-hole package. Key electrical specifications include an isolation voltage of 5000 Vrms, a maximum collector-emitter voltage of 35 V, and a maximum collector current of 30 mA. The device operates with a forward current of 5 mA and a forward voltage of 1.25 V. The current transfer ratio ranges from 80% to 160%, with a rise time of 18 µs.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits via optical coupling.
• Utilizes a phototransistor output stage for signal transmission.
• Designed for through-hole mounting in standard DIP-4 packages.

Applications

• General-purpose signal isolation in industrial control systems
• Input/output interface isolation in computing equipment
• Power supply feedback loop isolation

Procurement Notes

Verify the specific suffix 'D' against the manufacturer's datasheet to confirm the exact Current Transfer Ratio (CTR) binning, as this variant differs from other DPC817D sub-types. Ensure the DIP-4 tube packaging aligns with assembly requirements. Confirm RoHS compliance status directly from the official product documentation before finalizing procurement orders.

Selection Notes

Select this component when a single-channel isolation solution with moderate speed (18 µs rise time) is required. The 5000 Vrms isolation rating supports applications demanding robust safety barriers. Compare the 80%-160% CTR range against circuit gain requirements. Consider the 35 V collector-emitter voltage limit for load compatibility.

Part Context

This part belongs to the DPC817D family of transistor output optocouplers from Diodes Incorporated. The family shares common pinouts and basic electrical characteristics but varies primarily in the Current Transfer Ratio (CTR) grading. The 'D' suffix specifically denotes a defined CTR performance bin within this series.

Replacement Considerations

Check for direct substitutes such as DPC817D-A-TU or DPC817D-B-TU-V if different CTR bins are acceptable. Verify that alternative parts maintain the same DIP-4 package and 5000 Vrms isolation rating to ensure mechanical and electrical compatibility without redesigning the PCB layout.