TIL194

Overview

The TIL194 is a high-density AC input phototransistor optically coupled isolator manufactured by Isocom Components. It features a single channel with four pins in a DIP package, designed for robust signal isolation. The device supports an input current up to 50 mA and offers a typical rise time of 100 microseconds alongside a fall time of 100 microseconds. It provides an isolation voltage of 5300 Vrms, ensuring safe separation between circuits. The component operates within a temperature range of -55°C to 100°C and includes UL standard certification for safety compliance.

Feature Summary

• Designed for high-density applications requiring AC input capability
• Provides reliable optical isolation with phototransistor output
• Certified to UL standards for enhanced safety compliance

Applications

• High-noise environment signal isolation
• AC/DC input circuit coupling
• Industrial control system isolation

Procurement Notes

Verify the specific suffix (e.g., XSMT&R) against official datasheets to confirm package type and pin configuration. Ensure the selected variant matches the required isolation voltage and operating temperature range for the target application. Cross-reference part numbers with manufacturer documentation to avoid confusion with similar series components.

Selection Notes

Select this component when AC input compatibility and high isolation voltage are critical requirements. Consider the 100 microsecond switching speed for timing-sensitive designs. Evaluate thermal management needs given the wide operating temperature range. Confirm that the DIP or surface mount variant fits the PCB layout constraints effectively.

Part Context

The TIL194 belongs to Isocom's family of high-density optically coupled isolators. It is engineered for applications demanding reliable electrical isolation between low-voltage control circuits and higher-voltage power stages. The device leverages infrared technology to transmit signals across an insulating barrier, providing noise immunity and protecting sensitive electronics from voltage spikes.

Replacement Considerations

Public confirmed substitute part numbers include TIL194ASMT&R.