OPIA801DTU

Overview

The OPIA801DTU is a high-speed optoisolator manufactured by TT Electronics/Optek Technology. It features a Darlington phototransistor output configuration with an accessible base terminal for enhanced performance control. The device provides electrical isolation of 2500Vrms between the input LED and output transistor. It is housed in an 8-pin DIP package designed for through-hole mounting. Key electrical characteristics include a collector-emitter voltage rating of 30V and a maximum collector current of 100mA. The unit operates within a temperature range of -40°C to +100°C, ensuring reliability in demanding industrial environments.

Feature Summary

• Darlington output structure with base pin for speed optimization
• High isolation voltage rating of 2500Vrms
• Through-hole 8-DIP packaging for robust mechanical connection

Applications

• Industrial motor control systems
• Power supply feedback loops
• Microprocessor interface circuits

Procurement Notes

Verify the specific suffix 'DTU' corresponds to the tube packaging variant when ordering. Confirm that the required isolation voltage and Darlington gain meet the circuit design specifications. Check for RoHS compliance status if environmental regulations apply to the final assembly. Ensure the 8-DIP footprint matches the PCB layout constraints.

Selection Notes

Select this component when high gain and fast switching are required in an isolated environment. The integrated base allows for external resistor adjustment to reduce turn-off time compared to standard phototransistors. Consider the thermal dissipation capabilities of the DIP package relative to the ambient operating conditions. Validate the input forward current requirements against the driving source capability.

Part Context

This part belongs to the Optek optoelectronics portfolio from TT Electronics, specializing in reliable signal isolation components. The OPIA series utilizes advanced semiconductor processes to achieve high reliability in harsh conditions. It serves as a critical interface element in systems requiring galvanic separation between low-voltage logic and high-power loads.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical ratings before considering alternative manufacturers.