The LTV-817-B-G is a single-channel phototransistor optocoupler manufactured by Lite-On Inc. This device provides electrical isolation between circuits, safeguarding sensitive components from high voltages and preventing ground loops. It consists of an infrared emitting diode (IRED) and a phototransistor within a single package to achieve this isolation.

Applications

• Programmable Logic Controllers (PLCs)
• Industrial Control Systems
• Power Supplies
• Microcontroller Input/Output Isolation
• Signal Transmission in Noisy Environments

Features

• High Isolation Voltage: Delivers significant electrical isolation between input and output sides.
• Compact Package: Enables high-density mounting on printed circuit boards.
• CTR (Current Transfer Ratio): The 'B' suffix likely indicates a particular CTR range.
• RoHS Compliant: Complies with environmental regulations for hazardous substance reduction.
• Low Input Current: Requires minimal current to activate the input IRED.

Benefits

• Enhanced Safety: Protects against high voltage transients and electrical noise.
• Improved Signal Integrity: Prevents ground loops and reduces noise interference.
• Simplified Circuit Design: Streamlines the implementation of isolation requirements.
• Increased Reliability: Reduces risk of damage from electrical disturbances.
• Cost-Effective Solution: Provides a cost-efficient method for electrical isolation.

Additional Details

The LTV-817-B-G operates by converting an electrical signal to light via the IRED. This light then activates a phototransistor, completing the circuit and transmitting the signal without a direct electrical connection. This optical coupling ensures electrical isolation.

The 'B' in the part number designates a specific Current Transfer Ratio (CTR) range, which is important for ensuring predictable performance. The 'G' likely indicates a specific grade or testing level for the component.