Isolation Barrier
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This page explains how Optical Coupler is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
An electronic component that transfers electrical signals between two isolated circuits using light waves.
Technical details and manufacturing context for Optical Coupler
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Isolation Voltage | 3750–5000 Vrms | Minimum for safety isolation in industrial applicationsIEC 60747-5-5 |
| Current Transfer Ratio | 50–600 % | Determines output drive capabilityIEC 60747-5-5 |
| Collector-Emitter Voltage | 30–80 V | Maximum voltage across output transistor |
| Forward Voltage | 1.2–1.5 V | Typical LED forward voltage at rated current |
| Rise/Fall Time | 2–10 µs | Switching speed for digital signals |
| Operating Temperature | -40–85 °C | Extended range for industrial environmentsIEC 60068-2-1/2 |
| Storage Temperature | -55–125 °C | Non-operating survival rangeIEC 60068-2-1/2 |
| Input Current | 5–60 mA | LED drive current for rated CTR |
| Output Current | 10–100 mA | Maximum collector current |
| Package Type | DIP-4–DIP-8 | Through-hole or surface mount options |
| Creepage Distance | 7–10 mm | For reinforced insulation per safety standardsIEC 60664-1 |
| Clearance Distance | 6–8 mm | Minimum air gap for isolationIEC 60664-1 |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is essential for the following industrial systems and equipment:
| speed: | Up to 50 Mbps data rate |
| voltage: | Up to 5000V isolation voltage |
| temperature: | -40°C to +125°C (operating range) |
| current transfer ratio: | 20% to 600% depending on model |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
Manufacturer profiles associated with Optical Coupler.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
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An optical coupler transfers electrical signals between two circuits while providing electrical isolation. It prevents ground loops, voltage spikes, and noise interference, protecting sensitive components and ensuring safety.
Consider the required isolation voltage, current transfer ratio, switching speed, operating temperature, and package type. Verify these parameters against your circuit requirements and confirm with the manufacturer's datasheet.
Common standards include IEC 60747-5-5 for isolation voltage and current transfer ratio, and IEC 60664-1 for creepage and clearance distances. These are reference standards; compliance must be verified with the supplier.
Yes, but the rise/fall time (2–10 µs) limits the maximum data rate. For faster signals, consider high-speed optocouplers or alternative isolation methods, and verify the specifications.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.
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