The LTV-817-C1 is a single-channel, 4-pin DIP (Dual In-line Package) photocoupler from Lite-On Inc. It's designed for electrical isolation between input and output circuits, offering a high level of safety and reliability. This optocoupler consists of an infrared emitting diode (IRED) optically coupled to a phototransistor.

Applications:

• Programmable Logic Controllers (PLCs): Used for isolating input/output signals.
• Microprocessor Input/Output Isolation: Protects microprocessors from voltage spikes and noise.
• Noise Suppression in Signal Transmission: Filters out unwanted noise in communication lines.
• Power Supply Regulation: Provides feedback isolation in power supplies.
• Digital Logic Isolation: Isolates digital circuits operating at different voltage levels.

Features:

• High Isolation Voltage: Provides electrical isolation up to several kilovolts.
• CTR (Current Transfer Ratio): Offers a range of CTR values, enabling flexibility in circuit design. The C1 variant usually indicates a specific CTR range.
• Compact DIP Package: Space-saving design for easy integration into circuit boards.
• Fast Switching Speed: Enables rapid signal transmission.
• RoHS Compliant: Environmentally friendly, adhering to RoHS standards.

Benefits:

• Enhanced Safety: Prevents damage to sensitive electronic components by isolating high-voltage circuits.
• Noise Immunity: Improves signal integrity by blocking noise and interference.
• Simplified Circuit Design: Reduces the need for complex isolation techniques.
• Increased System Reliability: Minimizes the risk of electrical faults and failures.
• Protection from Ground Loops: Prevents unwanted current flow between circuits.

Additional Details:

The LTV-817-C1 typically features a collector-emitter voltage (VCEO) rating of around 80V and a forward current (IF) rating of around 50mA for the input diode. The operating temperature range usually spans from -30°C to +100°C, making it suitable for various industrial environments. The 'C1' suffix often denotes a specific Current Transfer Ratio (CTR) range, which is a key parameter in optocoupler selection. Designers should consult the datasheet to confirm the exact CTR range and other electrical characteristics for optimal performance. The insulation resistance is typically very high, ensuring excellent isolation performance over the lifespan of the device. The package is designed for through-hole mounting.