The EL816S1(D)(TA)-F is a single-channel phototransistor optocoupler manufactured by Everlight Electronics. Optocouplers provide electrical isolation between circuits, allowing signals to be transmitted without a direct electrical connection. They are commonly used in applications where safety or noise isolation is required.

Applications

• Power supplies for feedback control.
• Digital logic input isolation.
• Microprocessor input/output isolation.
• Noise isolation in communication systems.
• General purpose electrical isolation.

Features

• Channel Number: Single
• Input Type: DC Current
• Output Type: Phototransistor
• Isolation Voltage: Typically 5000 Vrms
• Current Transfer Ratio (CTR): Varies depending on the grade (D), but is a key parameter.

Benefits

• Electrical Isolation: Provides a high degree of electrical isolation between the input and output circuits.
• Noise Immunity: Reduces the effects of noise and interference in sensitive circuits.
• Safety: Protects equipment and personnel from high voltage hazards.
• Compact Size: Small package size for space-constrained applications.
• Reliable Performance: Solid-state construction ensures long lifespan and robust performance.

Additional Details

The EL816S1(D)(TA)-F optocoupler consists of an infrared LED and a phototransistor. When current flows through the LED, it emits infrared light, which activates the phototransistor, allowing current to flow in the output circuit. The (D) likely refers to a specific CTR (Current Transfer Ratio) range. The (TA) may indicate tape packaging. The '-F' suffix usually indicates that the device is RoHS compliant (Restriction of Hazardous Substances). Understanding the CTR is crucial for proper circuit design. The specific CTR rating indicated by the 'D' will differ from the 'C' version of this part. Datasheets should be consulted to confirm the exact CTR range and other key specifications.