The LTV-817M-A5-G-CU is a single-channel phototransistor optocoupler manufactured by Lite-On Inc. It comprises a gallium arsenide infrared emitting diode optically coupled to a silicon planar phototransistor. This configuration provides electrical isolation between the input and output, making it suitable for applications where signal transfer is needed without a direct electrical connection.

Applications:

• Programmable Logic Controllers (PLCs): Isolation of input/output modules.
• Microprocessor Input/Output Isolation: Protection of microprocessors from external voltage spikes.
• Switching Power Supplies: Feedback control with electrical isolation.
• Industrial Equipment: General-purpose isolation in industrial control systems.
• Measurement Instruments: Isolation in analog and digital measurement circuits.

Features:

• High Isolation Voltage: Provides significant electrical isolation between input and output.
• Compact Package: Suitable for space-constrained applications.
• High Current Transfer Ratio (CTR): Ensures efficient signal transfer.
• RoHS Compliant: Meets environmental regulatory standards.
• Wide Operating Temperature Range: Suitable for use in various environmental conditions.

Benefits:

• Enhanced Electrical Isolation: Protects control circuits from high voltages and transients.
• Improved System Reliability: Reduces the likelihood of component failure due to electrical noise.
• Safety Enhancement: Isolates high-voltage sections from low-voltage control circuitry.
• Noise Immunity: Minimizes electrical noise interference between circuits.
• Simplified Circuit Design: Enables direct interfacing of circuits with different voltage levels.

Additional Details:

The LTV-817M-A5-G-CU is typically available in a 4-pin DIP package. The input side contains an infrared LED, while the output side features a phototransistor. When current passes through the LED, it emits infrared light, which activates the phototransistor, causing current to flow in the output circuit. Key specifications to consider include the isolation voltage, CTR range, forward current, and collector-emitter voltage. This device is designed for through-hole mounting.