DPC817D-C-TU

Overview

The DPC817D-C-TU is a single-channel transistor output optocoupler manufactured by Diodes Incorporated. It features a DIP-4 through-hole package with an isolation voltage of 5000 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 35 V, a maximum collector current of 30 mA, and a forward voltage of 1.25 V at a forward current of 5 mA. The device exhibits a minimum current transfer ratio of 130% and a maximum of 260%. Additional specifications include a maximum collector-emitter saturation voltage of 200 mV, rise and fall times of 18 µs, and a power dissipation of 200 mW.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits via optical transmission.
• Utilizes a phototransistor output configuration for signal switching applications.
• Designed for robust performance within extended industrial temperature ranges.

Applications

• Industrial process control systems requiring galvanic isolation
• Power supply feedback loops for voltage regulation
• Microcontroller interface circuits for level shifting

Procurement Notes

Verify the specific C-bin current transfer ratio (130%-260%) against design requirements to ensure adequate noise immunity. Confirm the DIP-4 tube packaging format aligns with assembly line handling capabilities. Cross-reference the manufacturer part number DPC817D-C-TU with official Diodes Incorporated documentation to validate authenticity and revision status before procurement.

Selection Notes

Select this component when a standard 80%-160% CTR is insufficient for the application's noise margin or drive requirements. The higher 130%-260% CTR bin ensures reliable switching at lower input currents. Ensure the 35V collector-emitter voltage rating exceeds the load voltage in the target circuit. Verify that the 5000 Vrms isolation rating meets safety standards for the intended environment.

Part Context

This device belongs to the DPC817 series of transistor output optocouplers from Diodes Incorporated. The series offers various CTR bins (A, B, C) to accommodate different sensitivity requirements while maintaining consistent physical dimensions and pinouts. The DPC817D-C variant specifically targets applications needing higher gain than the standard A or B bins provide.

Replacement Considerations

Direct replacements include other DPC817D-C-TU units from Diodes Incorporated. Alternative sources may offer equivalent DIP-4 transistor optocouplers with matching 5000 Vrms isolation and compatible CTR ranges, provided pinout and electrical limits are verified.