ISOCOM 4 Channel Optocoupler, Darlington Output, DIP, 50mA, 5.3kV

The ISOCOM TIL199 is a high-density, four-channel optically coupled isolator, engineered to provide reliable signal isolation in sensitive electronic circuits. It integrates an infrared LED with an NPN silicon phototransistor in a single, compact package, ensuring efficient optical coupling and excellent noise immunity. This device is rigorously tested to guarantee a minimum Current Transfer Ratio (CTR) of 500%, making it highly responsive and suitable for applications demanding precise signal transmission with minimal loss.

Designed for through-hole mounting in a standard Dual In-line Package (DIP), the optocoupler offers robust electrical isolation up to 5.3kV, protecting low-voltage control circuits from high-voltage noise and transients. With a maximum forward current of 50mA and a collector-emitter voltage of 35V, it provides the necessary drive capability for a wide range of interfacing tasks. Its 16-pin configuration supports four independent isolation channels, saving valuable board space in multi-channel designs.

Key Applications

• Computers & Peripherals: Ideal for isolating communication lines, interfacing logic levels, and protecting I/O ports.
• Industrial Systems: Perfect for PLC inputs/outputs, motor control feedback, and sensor interfacing in noisy industrial environments.
• System Monitoring: Used to safely isolate monitoring signals from high-voltage power sections.
• Test & Measurement Equipment: Ensures accurate signal measurement by preventing ground loops and noise contamination.
• Signal Processing: Provides galvanic isolation in analogue and digital signal processing chains to maintain signal integrity.

With its high CTR, robust isolation rating, and proven reliability, the TIL199 is a fundamental component for designers looking to enhance circuit safety, noise performance, and system durability.