DPC817S-B-TR-V

Overview

The DPC817S-B-TR-V is a single-channel transistor output optocoupler manufactured by Diodes Incorporated. It features an SL-4 surface-mount package designed for SMD/SMT installation. The device provides 5000 Vrms isolation voltage between input and output circuits. Key electrical parameters include a maximum collector-emitter voltage of 35 V, a maximum collector current of 30 mA, and a forward current of 5 mA. The forward voltage is specified at 1.25 V, with a maximum collector-emitter saturation voltage of 200 mV. The current transfer ratio ranges from 130% to 260%, ensuring reliable signal transmission in isolated applications.

Feature Summary

• Provides high-voltage electrical isolation via 5000 Vrms insulation capability
• Integrates an NPN phototransistor output for digital signal switching
• Utilizes compact SL-4 surface-mount packaging for automated assembly

Applications

• Industrial control systems requiring circuit isolation
• Signal isolation in microcontroller interfaces
• Power supply feedback loops

Procurement Notes

Verify the complete part number including suffixes such as TR-V against official Diodes Incorporated documentation to ensure correct tape-and-reel configuration and binning specifications. Confirm that the SL-4 package dimensions match the target PCB footprint. Cross-reference the specific CTR bin (B) requirements with design constraints to guarantee performance within the 130% to 260% range during final assembly validation.

Selection Notes

Select this component when a low-cost, general-purpose optocoupler with moderate isolation voltage is required. The 35 V collector-emitter voltage rating suits low-voltage logic interfacing. Ensure the application does not exceed the 5 mA forward current limit. Compare against other CTR bins if tighter gain tolerances are necessary, or consider higher voltage ratings if system noise immunity demands greater than 5000 Vrms isolation.

Part Context

This device belongs to the DPC817 series of transistor output optocouplers produced by Diodes Incorporated. The series offers various current transfer ratio bins and packaging options to accommodate different design needs. The SL-4 package variant provides a compact form factor suitable for space-constrained printed circuit boards while maintaining standard pinout compatibility with legacy through-hole equivalents.

Replacement Considerations

Direct replacements may include other DPC817 variants with different CTR bins or packaging styles, provided the electrical ratings remain compatible. Verify pinout compatibility and isolation voltage specifications before substituting. Alternative manufacturers offer similar general-purpose optocouplers, but parameter matching must be confirmed against official datasheets.