I/O Interface Circuitry
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This page explains how Optocoupler 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 Optocoupler
| 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 Current | 20–60 mA | Maximum LED drive current |
| Saturation Voltage | 0.1–0.4 V | Lower is better for low-power operation |
| Rise Time | 2–5 µs | Affects switching speed in digital circuits |
| Fall Time | 2–5 µs | Affects switching speed in digital circuits |
| Operating Temperature | -40–85 °C | Extended range for industrial environments |
| Storage Temperature | -55–125 °C | Non-operating survival range |
| Creepage Distance | 7–10 mm | Required for reinforced insulationIEC 60664-1 |
| Package Type | DIP-4–DIP-8 | Through-hole or surface mount options |
| Weight | 0.3–1.5 g | Depends on package size |
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:
| voltage: | Up to 5000Vrms isolation voltage (depends on model) |
| temperature: | -40°C to +125°C (operating range, varies by model) |
| switching speed: | Up to 50MHz (for high-speed optocouplers) |
| current transfer ratio: | 20% to 600% (depends on LED efficiency and photodetector sensitivity) |
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 Optocoupler.
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A practical evidence checklist for RFQ preparation and supplier evaluation.
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An optocoupler transfers electrical signals between two isolated circuits using light, providing electrical isolation to prevent ground loops, noise, and voltage spikes from affecting connected systems.
Typical isolation voltage ratings range from 3750 to 5000 Vrms, as per IEC 60747-5-5. Always verify the specific rating for your model and application.
Consider required isolation voltage, current transfer ratio, switching speed, output drive capability, and operating temperature. Confirm these parameters with the manufacturer for your specific needs.
Common failure modes include degradation of the LED, reduced current transfer ratio, increased leakage current, or complete failure due to exceeding maximum ratings. Regular testing can detect these issues.
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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