OPI120TXV

Overview

The OPI120TXV is a high-reliability, through-hole optocoupler from the OPI120 series manufactured by TT Electronics/Optek Technology. It features a five-pin axial package designed for demanding industrial and aerospace applications. The device provides DC input isolation with a maximum forward voltage of 1.5V and a typical rise/fall time of 2μs. It supports a maximum input current of 150mA and offers an isolation voltage of 15kV dc. The unit operates within a temperature range of -55°C to 100°C and achieves a current transfer ratio between 20% and 50%. It holds UL recognition under file number E58730.

Feature Summary

• High-voltage electrical isolation capability suitable for harsh environments
• Robust axial through-hole construction for mechanical stability
• Fast switching performance with microsecond-level response times
• Certified reliability compliant with UL safety standards

Applications

• Industrial control systems requiring signal isolation
• Aerospace and defense electronic circuits
• High-reliability sensor interfaces
• Medical equipment signal transmission

Procurement Notes

Verify the specific suffix TXV indicates hermetic sealing or enhanced screening per MIL-STD-750 when sourcing. Confirm that the component matches the required axial pin configuration and voltage ratings for your circuit design. Ensure compatibility with existing PCB layouts due to the five-pin through-hole form factor. Cross-reference the UL file number for regulatory compliance in your target market.

Selection Notes

Select this component when high isolation voltage and wide operating temperature ranges are critical. The axial package suits applications requiring robust mechanical mounting. Consider the 150mA input current limit and 2μs switching speed for timing constraints. Verify that the 15kV isolation rating meets system safety requirements compared to lower-rated alternatives.

Part Context

This part belongs to the OPI120 series of high-reliability optocouplers produced by TT Electronics/Optek Technology. The series is engineered for extreme performance designs in industrial, aerospace, and defense sectors. The TXV suffix typically denotes enhanced screening processes such as those defined in MIL-STD-750, ensuring higher quality and reliability than standard commercial variants.

Replacement Considerations

Direct substitutes include other parts from the OPI120 series with compatible pinouts and electrical ratings. Verify equivalent isolation voltage and current transfer ratio before substitution. Ensure any replacement maintains the axial through-hole package style for physical compatibility.