FOD816300

Logic Output Optoisolators Overview

The FOD816300 is a discontinued logic output optoisolator manufactured by onsemi. It features a single channel with a Darlington transistor output configuration, providing high current transfer capability for digital signal isolation. The device supports both AC and DC input types and offers a robust 5000Vrms isolation voltage rating between input and output circuits. Packaged in a standard 4-DIP (0.400 inch width) through-hole housing, it is designed for reliable performance across a wide operating temperature range of -30°C to 100°C. Key electrical parameters include a maximum forward current of 50mA and an output current per channel of 80mA.

Logic Output Optoisolators Feature Summary

• High current transfer ratio enabled by the internal Darlington transistor output stage
• Wide common-mode transient immunity suitable for noisy industrial environments
• Versatile input compatibility supporting both alternating and direct current signals

Logic Output Optoisolators Applications

• Industrial automation control systems requiring galvanic isolation
• Solid-state relay driver circuits for switching applications
• Microprocessor interface isolation for digital communication lines

Logic Output Optoisolators Procurement Notes

This component is officially obsolete and no longer manufactured by onsemi. Procurement must focus on verified substitute part numbers rather than original stock. Buyers should confirm that replacement devices meet identical pinout, isolation voltage, and package dimensions to ensure seamless integration into existing designs without hardware modifications.

Logic Output Optoisolators Selection Notes

Engineers selecting this component should prioritize devices with matching Darlington output characteristics to maintain signal integrity. Verify that the replacement optocoupler supports the required 5000Vrms isolation rating and operates within the specified -30°C to 100°C temperature range. Ensure the new part accommodates the same 4-DIP through-hole footprint and accepts both AC and DC input drive conditions for functional equivalence.

Logic Output Optoisolators Part Context

The FOD816300 belongs to the broader FOD816 series of logic output optoisolators from onsemi. This family is characterized by high-speed response and robust isolation capabilities, widely used in legacy electronic designs. The specific FOD816300 variant distinguishes itself through its tube packaging and specific thermal ratings, serving as a critical interface component in older industrial equipment and power supply designs.

Logic Output Optoisolators Replacement Considerations

LTV-8141 is confirmed as a direct substitute. LTV-816M is listed as a similar alternative.