DPC817W-B-TU

Overview

The DPC817W-B-TU is a single-channel transistor output optocoupler manufactured by Diodes Incorporated. It features a phototransistor output and an MDIP-4 through-hole package. Key electrical parameters include a minimum current transfer ratio (CTR) of 130% and a maximum of 260% at a forward current of 5 mA. The device supports a maximum collector-emitter voltage of 35 V and a maximum collector current of 30 mA. It provides high isolation with a rated insulation voltage of 5000 VRMS. The component operates within a temperature range of -55°C to +110°C, with a typical forward voltage of 1.25 V and a rise time of 18 µs.

Feature Summary

• High input-output isolation voltage rated at 5000 VRMS for robust signal separation
• Wide current transfer ratio range from 130% to 260% ensuring reliable switching performance
• Industry-standard MDIP-4 package design facilitating easy integration into existing circuits

Applications

• Industrial control systems requiring galvanic isolation
• Consumer electronics power supply feedback loops
• Signal transmission across isolated ground domains

Procurement Notes

Verify the specific suffix TU against the manufacturer's latest datasheet to confirm packaging details and compliance status. Ensure the CTR grade B specification aligns with circuit requirements for current transfer efficiency. Cross-reference the MDIP-4 footprint dimensions with PCB layout guidelines before finalizing procurement orders.

Selection Notes

Select this component when a high isolation voltage of 5000 VRMS is required alongside a wide CTR tolerance. The MDIP-4 package suits applications needing through-hole mounting. Consider the 30 mA collector current limit and 35 V breakdown voltage when designing the output stage. Verify thermal management capabilities given the operating temperature range up to 110°C.

Part Context

This part belongs to the DPC817 series of single-channel optocouplers. The 'B' suffix denotes a specific binning category for the current transfer ratio, distinguishing it from other grades like A or C within the same family. It shares the same physical package and basic electrical structure as other variants but offers tighter or different CTR specifications.

Replacement Considerations

Compatible substitutes include DPC817W-A-TU and DPC817W-C-TU from Diodes Incorporated, provided their respective CTR ranges meet the application's sensitivity requirements. Other generic 817-series optocouplers may fit physically but require verification of isolation voltage and CTR specs.