DPC817S-B-TR

Overview

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

Feature Summary

• Provides electrical isolation between input and output circuits using a phototransistor output configuration.
• Utilizes an SL-4 surface-mount package suitable for automated SMD/SMT assembly processes.
• Ensures high-voltage isolation capability with a rated insulation voltage of 5000 Vrms.

Applications

• Signal isolation in industrial control systems
• Interface circuits in computing equipment
• Communication interface isolation

Procurement Notes

Verify the specific suffix B indicates the current transfer ratio binning classification as documented in the official datasheet. Confirm the SL-4 package dimensions match the design footprint requirements. Ensure the operating temperature range of -55°C to 110°C aligns with the target application environment. Check for RoHS compliance status if required by project specifications.

Selection Notes

Select this component when a single-channel isolation solution with moderate speed and standard CTR is required. Compare against other variants in the DPC817 series based on specific CTR requirements and package type preferences. Consider the 35 V collector-emitter voltage limit for low-voltage logic interfacing applications. Evaluate thermal management needs given the small surface-mount form factor.

Part Context

This part belongs to the DPC817 family of transistor output optocouplers from Diodes Incorporated. These devices are widely used for general-purpose isolation tasks. The DPC817S variant specifically denotes the SL-4 surface-mount package version, distinguishing it from through-hole or alternative surface-mount packages like SLM-4 found in other family members.

Replacement Considerations

Compatible substitutes within the same manufacturer line include DPC817L-B-TR, which shares similar electrical characteristics but utilizes an SLM-4 package. Other generic 817-series optocouplers may function similarly but require verification of pinout compatibility and specific electrical parameter limits before substitution.