DPC817L-C-TR-V

Overview

The DPC817L-C-TR-V is a transistor output optocoupler manufactured by Diodes Incorporated. It features a single channel with an SLM-4 surface-mount package. Key electrical parameters include a maximum collector-emitter voltage of 35 V and a maximum collector current of 30 mA. The device exhibits a forward voltage of 1.25 V at a forward current of 5 mA, with a saturation voltage of 200 mV. It provides an isolation voltage of 5000 Vrms and a current transfer ratio ranging from 200% to 400%. Switching characteristics include rise and fall times of 18 µs.

Feature Summary

• Provides high-voltage isolation between input and output circuits using a phototransistor configuration.
• Designed for surface-mount assembly in compact electronic applications.
• Offers defined current transfer ratios for predictable signal transmission.

Applications

• General-purpose signal isolation in industrial control systems
• Interface circuits in consumer electronics devices
• Power supply feedback loops requiring galvanic separation

Procurement Notes

Verify the specific suffix 'V' against the manufacturer's official documentation to confirm tape-and-reel packaging specifications and any minor parameter variations compared to standard versions. Ensure the ordering part number matches the exact datasheet revision required for your design. Cross-reference the component marking code on received units with published identification guides to prevent counterfeit or mislabeled inventory entry.

Selection Notes

Select this component when a low-cost, single-channel optoisolator with moderate speed is required. The 35 V collector-emitter rating suits low-voltage logic interfacing. Verify that the 18 µs switching time meets the system's bandwidth requirements. Confirm that the SLM-4 footprint aligns with the PCB layout constraints and that the thermal dissipation capabilities are sufficient for the intended operating environment.

Part Context

This part belongs to the 817 series family of optocouplers, widely used for basic isolation tasks. The 'DPC' prefix indicates Diodes Incorporated's specific manufacturing line. The 'C' typically denotes the current transfer ratio binning, while 'TR' signifies tape and reel packaging. This variant represents a standardized solution for replacing legacy through-hole components in modern surface-mount designs.

Replacement Considerations

Direct substitutes include other 817-series variants such as the PC817 or IL817, provided they match the SLM-4 package and electrical ratings. Verify that alternative manufacturers offer comparable current transfer ratios and isolation voltages. Ensure pinout compatibility and thermal characteristics align before swapping components in existing designs.