6N139S-TA1

Transistor, Photovoltaic Output Optoisolators Overview

The Lite-On 6N139S-TA1 is a high-speed optocoupler featuring a Darlington phototransistor output in an SMD-8 package. It supports a data rate of 100 kb/s with an isolation voltage of 5000 Vrms. Key electrical parameters include a current transfer ratio of 1600%, a forward current of 1.6 mA, and a forward voltage of 1.1 V. The device handles a reverse voltage of 5 V, delivers an output current of 50 mA, and has a power dissipation rating of 100 mW.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High-speed signal transmission capability for digital isolation applications
• Darlington output configuration providing high current gain
• Robust insulation voltage rating for safety isolation

Transistor, Photovoltaic Output Optoisolators Applications

• Digital communication interface isolation
• Microprocessor system input/output isolation
• Signal transmission in noisy environments

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix (TA1) to confirm the tape-and-reel packaging format, as datasheets may list tube variants. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the manufacturer part number with official Lite-On documentation to confirm pinout compatibility and thermal characteristics before finalizing procurement orders.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a high current transfer ratio is required to drive loads directly without additional amplification. The Darlington output offers higher sensitivity compared to standard phototransistor outputs. Consider the 100 kb/s speed limit; for faster applications, logic-output variants like the 6N137 series are more appropriate. Verify that the 5000 Vrms isolation rating meets the safety standards of the target application.

Transistor, Photovoltaic Output Optoisolators Part Context

This component belongs to the Lite-On high-speed optocoupler family. It differs from the 6N137 series by using a Darlington output instead of a logic gate, resulting in lower speed but higher gain. The TA1 suffix typically denotes surface-mount packaging with reel distribution, distinguishing it from through-hole or tube-packaged versions within the same functional family.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The 6N139S-TA1-L is a verified equivalent variant with identical electrical specifications. Check if the 'L' suffix indicates a lead-free or specific packaging change. Direct replacements must maintain the Darlington output type and similar CTR ranges to ensure circuit compatibility.