The LTV816S-TA-B is a phototransistor optocoupler manufactured by Lite-On Inc. It provides galvanic isolation between input and output circuits, protecting sensitive components from high voltages and preventing ground loops. It is a commonly used component in various electronic applications requiring electrical isolation.

Applications

• Industrial Control Systems
• Programmable Logic Controllers (PLCs)
• Power Supplies
• Microcontroller Interfacing
• Signal Isolation

Features

• High Isolation Voltage: Provides a high level of electrical isolation between the input and output.
• Compact Package: Space-saving design for high-density applications.
• CTR (Current Transfer Ratio): The 'B' designation likely indicates a specific CTR range.
• Surface Mount: Designed for automated assembly on printed circuit boards.
• RoHS Compliant: Meets environmental standards for hazardous substances.

Benefits

• Enhanced Safety: Protects sensitive circuitry from high voltage transients and surges.
• Improved Signal Integrity: Eliminates ground loops and reduces noise in signal transmission.
• Simplified Circuit Design: Reduces the complexity of isolating different circuit sections.
• Increased Reliability: Protects against voltage spikes and other electrical disturbances.
• Cost-Effective Isolation: Provides a simple and economical method for electrical isolation.

Additional Details

The LTV816S-TA-B consists of an infrared emitting diode (IRED) and a phototransistor. When current flows through the IRED, it emits light, which activates the phototransistor. This allows current to flow from the collector to the emitter of the phototransistor, providing an isolated signal path.

The 'S' in the part number usually indicates that it is a surface mount device. The 'TA' suffix likely refers to specific packaging or testing characteristics. The 'B' in the part number relates to a specific Current Transfer Ratio (CTR) range.