Optocouplers

Optocouplers use light-based (optical) signal transmission to provide electrical galvanic isolation between circuits. They support reliable switching, feedback, control, and protection functions.

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Explore our semiconductor product portfolio, organized by category to help you quickly find the right solution for your design.

Phototransistors

Phototransistor optocouplers provide reliable signal isolation using a light-activated transistor output. They are widely used for switching, level shifting, and noise isolation.
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Photo Buffers

Photo buffer optocouplers combine optical isolation with digital buffering for fast, clean logic signal transfer. They help improve signal integrity in noisy environments.
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Photo Amplifiers

Photo amplifier optocouplers isolate and accurately transfer analog or feedback signals. They are commonly used in power supplies, sensing, and control applications.
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Photo IGBT/MOSFET Gate Drivers

Photo gate-driver optocouplers provide isolated control of MOSFETs and IGBTs in power systems. They enable safe, efficient switching in motor drives and power converters.
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Photo TRIAC Drivers

Photo TRIAC driver optocouplers provide isolated control of AC loads through TRIAC-based switching. They are commonly used in lighting, appliance, and industrial control applications.
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Additional Function Optocouplers

Additional function optocouplers integrate specialized features beyond basic signal isolation. These devices simplify system design for advanced monitoring, protection, and control functions.
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