OPI125TXV

Overview

The OPI125TXV is a logic output optoisolator manufactured by TT Electronics/Optek Technology. It features a gallium aluminum arsenide infrared LED emitter coupled with a totem pole output stage. The device provides 15 kV isolation voltage and supports data rates up to 0.25 Mbps. It utilizes an axial package with five leads, designed for surface mount or through-hole integration in high-voltage isolation applications.

Feature Summary

• High isolation voltage capability of 15 kV
• Totem pole output configuration for fast switching
• Integrated infrared LED emitter

Applications

• Industrial automation control systems
• Power supply feedback loops
• Signal isolation in noisy environments

Procurement Notes

Verify the specific suffix 'V' against the manufacturer datasheet to confirm axial lead configuration and packaging type. Ensure compatibility with 15 kV isolation requirements and 0.25 Mbps speed limits. Check RoHS compliance status and moisture sensitivity level (MSL) before storage and reflow soldering processes.

Selection Notes

Select this component when high voltage isolation is required alongside digital signal transmission. The totem pole output offers stronger drive capability compared to standard open-collector outputs. Verify that the axial package fits the PCB layout constraints and that the 0.25 Mbps speed meets the system timing requirements.

Part Context

This part belongs to the OPI series of optocouplers from TT Electronics/Optek Technology. These devices are engineered for reliable electrical isolation between low-voltage control circuits and high-voltage power stages. The series typically includes variants with different output configurations and isolation ratings.

Replacement Considerations

Check for direct substitutes within the same family, such as OPI125TX, ensuring pinout and electrical specifications match. Verify equivalent isolation voltage and propagation delay characteristics before substitution.