DPC817L-D-TR

Overview

The DPC817L-D-TR is a single-channel transistor output optocoupler manufactured by Diodes Incorporated in an SLM-4 surface-mount package. It provides 5000 Vrms insulation voltage with a collector-emitter voltage of 35 V and maximum collector current of 30 mA. The device features a forward voltage of 1.25 V at 5 mA forward current, with a power dissipation of 200 mW. Current transfer ratio ranges from 50% to 600%, while rise and fall times are typically 18 µs. Operating temperature spans from -55°C to +110°C.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits via optical coupling.
• Features a phototransistor output configuration for digital signal transmission.
• Designed for surface-mount assembly to facilitate automated PCB placement.

Applications

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

Procurement Notes

Verify the specific suffix 'D' against the manufacturer's datasheet to confirm the exact Current Transfer Ratio (CTR) binning, as variations exist within the DPC817L family. Confirm RoHS compliance status and check for end-of-life notifications, as some variants may be discontinued or subject to production changes. Ensure the SLM-4 package dimensions match your footprint requirements.

Selection Notes

Select this component when a compact surface-mount solution is required for galvanic isolation. Compare the CTR range and switching speed against system timing requirements. Consider thermal management capabilities given the 200 mW power dissipation limit. Evaluate the 5000 Vrms isolation rating against safety standards applicable to the target application environment.

Part Context

This part belongs to the DPC817L series of transistor-output optocouplers from Diodes Incorporated. It shares functional similarities with other 817-series devices but utilizes a specialized SLM-4 surface-mount package instead of traditional DIP or SIP formats. The series is designed for general-purpose isolation applications requiring small form factors.

Replacement Considerations

Direct pin-compatible replacements include other SMD variants of the 817 series such as PC817L equivalents in SLM-4 packages. Verify that substitute parts meet the same 5000 Vrms isolation and 35 V collector-emitter voltage specifications. Check CTR bins and switching speeds to ensure functional equivalence.