TIL194AXSMT&R

Overview

The TIL194AXSMT&R is a single-channel optoisolator manufactured by Isocom Components 2004 LTD. It features a surface mount package with four pins, designed for efficient space utilization in electronic circuits. The device provides an isolation voltage of 5.3 kVrms, ensuring robust separation between input and output sides. Key electrical parameters include a minimum current transfer ratio (CTR) of 50% at a forward current of 5 mA. The typical forward voltage (Vf) is 1.2 V. Switching characteristics are defined by a rise time of 4 µs and a fall time of 3 µs. These specifications make it suitable for applications requiring reliable signal transmission across isolated boundaries.

Feature Summary

• Single-channel configuration for dedicated signal isolation tasks
• Surface mount packaging optimized for automated assembly processes
• High isolation voltage rating to prevent electrical interference
• Fast switching speeds with low rise and fall times

Applications

• General-purpose digital signal isolation in industrial control systems
• Microcontroller interface circuits requiring galvanic separation
• Power supply feedback loops for safety compliance
• Communication line protection in noisy environments

Procurement Notes

Verify the specific suffix 'XSMT&R' confirms the tape-and-reel packaging format required for high-volume manufacturing. Confirm that the manufacturer designation matches Isocom Components 2004 LTD to ensure component authenticity. Check for RoHS compliance documentation if environmental regulations apply to the end product. Ensure storage conditions align with moisture sensitivity levels specified in the datasheet to maintain reliability before soldering.

Selection Notes

Select this component when a compact surface mount solution is needed for single-channel isolation. The 5.3 kVrms rating supports standard industrial isolation requirements. Consider the 50% CTR at 5 mA for driving logic inputs efficiently. The 4 µs/3 µs switching times are adequate for moderate-speed digital signals. Evaluate thermal management needs based on the maximum forward current limits provided in the official specifications.

Part Context

This part belongs to the broader category of transistor-output optocouplers. It shares functional similarities with other single-channel devices but is distinguished by its specific surface mount footprint and switching speed profile. The model number indicates a variant optimized for surface mount technology, differing from through-hole equivalents in physical dimensions and mounting method while maintaining comparable electrical isolation performance.

Replacement Considerations

Public confirmed substitute part numbers: None identified in verified sources.