The LTV-4N35S is a general-purpose optocoupler manufactured by Lite-On Inc. It consists of a gallium arsenide infrared emitting diode (IRED) optically coupled to a silicon NPN phototransistor. This device is commonly used for electrical isolation and signal transfer in a wide range of applications.

Applications

• Industrial Control: Isolation of control signals in industrial automation equipment.
• Power Supplies: Isolation between primary and secondary sides in power supplies.
• Motor Control: Isolation of control signals for motor drive circuits.
• Logic Isolation: Isolation of digital logic signals to prevent ground loops and noise.
• Telecommunications: Signal isolation in telecommunications equipment.

Features

• High Isolation Voltage: Provides electrical isolation between input and output.
• NPN Phototransistor Output: Standard transistor output configuration.
• DIP Package: Through-hole mounting for easy prototyping and assembly.
• High Current Transfer Ratio (CTR): Efficient signal transfer.
• RoHS Compliant: Environmentally friendly.

Benefits

• Improved Safety: Protects circuits and personnel from high voltages.
• Enhanced Noise Immunity: Reduces the impact of electrical noise on signal integrity.
• Simplified Circuit Design: Provides a simple and effective isolation solution.
• Versatile: Suitable for a wide range of applications.

Additional Details

The LTV-4N35S is typically housed in a 6-pin DIP (Dual In-line Package). Key electrical parameters include the isolation voltage (typically in the kilovolt range), current transfer ratio (CTR), collector-emitter voltage, and forward voltage drop. The current transfer ratio (CTR) is the ratio of the collector current to the input forward current and varies depending on operating conditions. It's crucial to refer to the datasheet for specific values and operating conditions. The 'S' suffix may indicate specific testing or screening level or surface mount configuration.