DPC1019S-TR

Overview

The DPC1019S-TR is a single-channel transistor output optocoupler manufactured by Diodes Incorporated. It features an LSOP-4 surface-mount package and provides 5000 Vrms insulation voltage. The device utilizes an NPN phototransistor output with a collector-emitter voltage rating of 80 V and a maximum collector current of 30 mA. Key electrical parameters include a forward current of 5 mA, a forward voltage of 1.25 V, and a saturation voltage of 200 mV. The current transfer ratio ranges from 200% to 400%. Switching characteristics specify rise and fall times of 18 µs each. The component operates within a temperature range of -55°C to +110°C and has a power dissipation rating of 250 mW.

Feature Summary

• Provides high-voltage isolation between input and output circuits via optical coupling.
• Features fast switching performance with symmetric rise and fall times for signal integrity.
• Designed for surface-mount assembly in compact LSOP-4 packages.

Applications

• General-purpose digital signal isolation
• Microcontroller interface circuits
• Power supply feedback loops

Procurement Notes

Verify the specific suffix TR indicates tape-and-reel packaging when sourcing components. Confirm that the LSOP-4 footprint matches your PCB design requirements. Ensure the operating temperature range meets your environmental specifications. Check RoHS compliance status through official manufacturer documentation before integration into regulated products.

Selection Notes

Select this component when high isolation voltage is required in a small form factor. The moderate current transfer ratio suits applications where standard logic levels are sufficient. Consider the 18 µs switching speed for low-to-medium frequency data transmission. Evaluate thermal management needs given the 250 mW power dissipation limit in enclosed spaces.

Part Context

This part belongs to the DPC series of transistor output optocouplers from Diodes Incorporated. The series offers various current transfer ratios and voltage ratings across different pin configurations. The DPC1019S-TR specifically targets applications requiring robust isolation with moderate speed capabilities in a compact surface-mount package.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Engineers should consult official manufacturer cross-reference guides or datasheets for verified alternatives.