TIL199ASM

Overview

The TIL199ASM is a quad optocoupler manufactured by Isocom Components 2004 LTD. It features four independent channels with Darlington transistor outputs housed in a 16-pin DIP package. The device provides an isolation voltage of 5300Vrms and operates within a temperature range of -55°C to +100°C. Key electrical parameters include a maximum forward voltage of 1.4V, a typical rise time of 100μs, and a typical fall time of 100μs. It is UL certified for safety compliance.

Feature Summary

• Quad configuration providing four independent signal isolation channels
• Darlington transistor output stage for high current transfer capability
• High isolation voltage rating for robust circuit protection
• Wide operating temperature range suitable for demanding environments

Applications

• Industrial control systems requiring multi-channel isolation
• Power supply feedback loops
• Solid-state relay driver circuits
• Microcontroller interface isolation

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to ensure correct pinout and packaging configuration. Confirm that the 16-pin DIP form factor matches the target PCB footprint requirements. Cross-reference the UL certification status with relevant regional safety standards before finalizing component selection for regulated equipment designs.

Selection Notes

Select this component when multiple isolated channels are required in a single package to save board space. The Darlington output offers higher gain compared to standard transistor outputs, making it suitable for driving loads directly without additional amplification stages. Ensure the input current limits are respected to maintain optimal current transfer ratio performance across the specified temperature range.

Part Context

Isocom Components 2004 LTD specializes in infrared optoelectronic devices, including optocouplers and optoswitches. The company has over 40 years of industry expertise, originating from Litronix management and engineering teams. Production facilities are located in Thailand and Malaysia, with final testing conducted in the UK. The brand is recognized for providing alternative sources for discontinued or hard-to-find industrial components.

Replacement Considerations

TIL199ASM-DG