DPC817D-B-TU-V

Overview

The DPC817D-B-TU-V 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. The device operates with a forward current of 5 mA and a forward voltage of 1.25 V. Key electrical parameters include a maximum collector-emitter voltage of 35 V, a maximum collector current of 30 mA, and a collector-emitter saturation voltage of 200 mV. The current transfer ratio ranges from 130% to 260%, with rise and fall times of 18 µs. It supports a power dissipation of 200 mW and functions within a temperature range of -55°C to +110°C.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits using phototransistor technology.
• Offers reliable signal transmission in compact DIP-4 packages suitable for standard mounting styles.
• Ensures stable operation across wide industrial temperature ranges with defined switching characteristics.

Applications

• Industrial control systems requiring galvanic isolation
• Power supply feedback loops for voltage regulation
• Signal interfacing between microcontrollers and high-voltage loads

Procurement Notes

Verify the specific suffix TU-V indicates VDE certification status as documented in official Diodes Incorporated datasheets. Confirm that the DIP-4 tube packaging aligns with assembly requirements. Ensure compatibility with the specified 5000 Vrms isolation rating for safety-critical designs. Cross-reference the 130-260% CTR binning against circuit design margins. Validate that the operating temperature range meets environmental specifications.

Selection Notes

Select this component when high isolation voltage and moderate speed are required for cost-sensitive applications. The DIP-4 form factor simplifies prototyping and manual assembly compared to surface-mount alternatives. Consider the 18 µs switching time for non-high-frequency digital isolation tasks. Evaluate the 5 mA drive requirement against available logic outputs. Ensure the 35 V collector-emitter voltage exceeds the load voltage in the target circuit configuration.

Part Context

This part belongs to the DPC817 series of transistor output optocouplers produced by Diodes Incorporated. The series provides general-purpose isolation solutions for various electronic applications. The DPC817D variant specifically denotes a particular current transfer ratio binning within the broader product family. These components are designed to replace legacy equivalents in existing designs while maintaining pin compatibility.

Replacement Considerations

Direct replacements may include other DPC817 variants with different CTR bins or packaging options. Verify pinout compatibility before substituting with generic 817-series parts. Check if alternative manufacturers offer equivalent DIP-4 optocouplers with matching isolation ratings. Ensure any substitute maintains the same thermal and electrical performance boundaries.