Fairchild MOC8021M, MOC8050M Photodarlington Optocoupler (No Base Connection) Data Sheet
Summary
These photodarlington optocouplers provide robust, high-speed electrical isolation using an integrated LED input and a silicon phototransistor output. The detailed manual covers all critical performance benchmarks, including exceptional current transfer ratios (up to 1000%), specified breakdown voltages (50V/80V), and compliance with safety standards like IEC 60747-5-2. Ideal for engineers designing industrial appliances, measuring instruments, computer I/O interfaces, or programmable control systems requiring reliable signal coupling between different potentials and impedances.
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 10 |
| File Size | 272.06 KB |
| Published | July 06, 2026 |
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Frequently Asked Questions
What voltage do I need to handle with the MOC8021M vs. MOC8050M?
The MOC8021M has a minimum CEO of 50V, while the MOC8050M offers a higher minimum CEO of 80V.
What is the maximum continuous collector current?
The models can handle up to 150 mA (C) for continuous collector current.
What kind of applications are suitable for these optocouplers?
They are suitable for appliances, measuring instruments, I/O interface systems, and programmable controllers.
How do I ensure safety compliance when using this device?
The optocoupler is approved per IEC 60747-5-2 for safe electrical insulation only within the specified safety limits.