DPC817S-X-TR

Overview

The DPC817S-X-TR is a single-channel transistor output optocoupler manufactured by Diodes Incorporated. It features an SL-4 surface-mount package designed for SMD/SMT installation. The device provides 5000 VRMS insulation voltage between input and output. Key electrical parameters include a maximum collector-emitter voltage of 35 V, a maximum collector current of 30 mA, and a forward current (If) of 5 mA with a forward voltage (Vf) of 1.25 V. The Current Transfer Ratio (CTR) ranges from a minimum of 100% to a maximum of 200%. The collector-emitter saturation voltage is specified at 200 mV.

Feature Summary

• Provides galvanic isolation via a phototransistor output configuration within a compact SL-4 surface-mount package.
• Ensures signal integrity through high insulation voltage capability suitable for noise-sensitive environments.
• Offers standardized CTR performance for predictable switching behavior in digital logic interfacing applications.

Applications

• Signal isolation in industrial control systems
• Interface circuits for microcontrollers and logic families
• Power supply feedback loops requiring galvanic separation

Procurement Notes

Verify the specific suffix 'X' against the manufacturer's latest datasheet to confirm the exact CTR binning and testing conditions, as variations exist within the DPC817S family. Ensure the SL-4 package dimensions match the PCB footprint requirements. Confirm RoHS compliance status if required by the end-product specifications. Cross-reference the Mouser part number 621-DPC817S-X-TR for accurate sourcing channels and availability updates.

Selection Notes

Select this component when a 35 V collector-emitter voltage rating and 5000 VRMS isolation are required for single-channel applications. The 100%-200% CTR range suits standard digital isolation tasks. Compare against the DPC817S-B-TR or DPC817S-Y-TR if different CTR bins or packaging options are needed. Ensure the 5 mA forward current drive capability aligns with the source circuit design constraints.

Part Context

This part belongs to the DPC817S series of transistor output optocouplers from Diodes Incorporated. It shares the same physical SL-4 package and basic pinout structure with other variants like the DPC817S-B-TR and DPC817S-Y-TR. The primary differentiation lies in the Current Transfer Ratio (CTR) grading, where the 'X' suffix denotes a specific gain bin distinct from the 'B' or 'Y' designations found in the broader product line.

Replacement Considerations

Direct substitutes include DPC817S-B-TR and DPC817S-Y-TR, provided the CTR differences are acceptable for the application. Generic replacements such as PC817 equivalents may fit mechanically but require verification of electrical parameters and isolation ratings.