OPI127-032

Overview

The OPI127-032 is a high-voltage optoisolator manufactured by TT Electronics/Optek Technology. It consists of a gallium arsenide infrared emitting diode coupled to a monolithic integrated circuit output. The device features a push-pull, totem pole logic output and supports a data rate of 250 kbps. Key electrical parameters include an isolation voltage of 15000 VDC (or 15000 Vrms), a typical propagation delay of 5 µs for both rise and fall times, and a supply voltage range of 4.5 V to 5.5 V. The component utilizes an axial package style.

Feature Summary

• High voltage isolation capability suitable for demanding electrical environments
• Integrated monolithic IC output providing push-pull logic functionality
• Fast switching performance with low propagation delay for signal integrity

Applications

• High voltage interface circuits requiring galvanic isolation
• Industrial control systems needing reliable signal transmission across potential differences
• Power supply feedback loops for monitoring and regulation

Procurement Notes

Verify the specific isolation voltage rating and package configuration against the official datasheet before procurement. Ensure that the operating conditions align with the specified supply voltage range of 4.5 V to 5.5 V. Confirm compatibility with the required data rate of 250 kbps for the intended application. Check for any RoHS compliance documentation if environmental regulations apply to the manufacturing process.

Selection Notes

Select this component when high voltage isolation is critical alongside fast digital signal transmission. The push-pull output offers robust drive capability compared to open-collector alternatives. Consider the axial package constraints for PCB layout. Evaluate the 15000 VDC isolation rating against the system's transient voltage requirements to ensure adequate safety margins.

Part Context

The OPI127-032 belongs to the family of high-performance optoisolators designed for applications requiring significant electrical separation between input and output stages. It combines the reliability of a gallium arsenide LED source with the speed of an integrated circuit detector. This design addresses the need for rapid response in high-voltage environments where traditional optocouplers might be too slow or lack sufficient isolation ratings.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical specifications carefully when considering alternative components from other manufacturers.