DPC817D-A-TU

Overview

The DPC817D-A-TU is a single-channel transistor output optocoupler manufactured by Diodes Incorporated. It features a phototransistor output with an isolation voltage of 5000 Vrms. Key electrical parameters include a collector-emitter breakdown 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 80% and a maximum of 160%. Saturation voltage is limited to 200 mV, with rise and fall times specified at 18 µs.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits via an internal LED and phototransistor structure.
• Delivers reliable signal transmission through a standard DIP-4 through-hole package suitable for general-purpose applications.
• Ensures stable switching performance with defined current transfer ratios and low saturation voltage characteristics.

Applications

• General-purpose signal isolation in industrial control systems
• Power supply feedback loops for voltage regulation
• Microcontroller interface circuits requiring galvanic separation

Procurement Notes

Verify the specific suffix TU indicates tube packaging when sourcing components. Confirm RoHS compliance status directly from the manufacturer's latest documentation or certified datasheet before integration. Ensure the supplier provides traceable origin data consistent with Diodes Incorporated manufacturing standards to maintain quality assurance protocols.

Selection Notes

Select this component when a 5000 Vrms isolation rating is required for safety-critical interfaces. The 80% to 160% current transfer ratio range supports robust logic level translation. Consider the DIP-4 form factor for legacy board designs or through-hole assembly processes where surface mount alternatives are unsuitable.

Part Context

This part belongs to the DPC817 series of transistor output optocouplers produced by Diodes Incorporated. The series offers various CTR grades and packaging options to accommodate different design constraints. The DPC817D-A variant specifically targets applications needing moderate speed and high isolation reliability within a compact footprint.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific component were not identified in the provided source material. Verify compatibility with alternative optocouplers based on pinout, CTR, and isolation voltage specifications before substitution.