TIL198G

Overview

The TIL198G is a dual-channel optoisolator manufactured by Isocom Components 2004 LTD, featuring a Darlington transistor output configuration. It provides high isolation voltage of 5300Vrms between input and output circuits. The device operates within a temperature range of -55°C to 100°C and utilizes an 8-DIP package for through-hole mounting. Key electrical characteristics include a maximum collector-emitter saturation voltage of 200mV and a typical rise/fall time of 100µs. The component supports DC input signals and offers a minimum current transfer ratio of 500% at 10mA input current.

Feature Summary

• Dual-channel architecture with Darlington output structure for high gain
• High isolation voltage rating of 5300Vrms for robust circuit separation
• Wide operating temperature range suitable for industrial environments
• Through-hole 8-DIP packaging for reliable mechanical integration

Applications

• Industrial control systems requiring galvanic isolation
• Power supply feedback loops for signal transmission
• Microprocessor interface circuits for noise immunity
• Solid-state relay driver applications

Procurement Notes

Verify the specific suffix G against manufacturer documentation to confirm pinout and performance specifications. Ensure compatibility with existing PCB footprints for 8-DIP packages. Check RoHS compliance status if environmental regulations apply to your assembly process. Confirm lead times with authorized distributors as availability may vary. Validate thermal management requirements given the wide operating temperature range.

Selection Notes

Select this component when high current gain is required due to the Darlington output stage. Consider the 5300Vrms isolation rating for safety-critical applications. Evaluate the 100µs switching speed against system timing requirements. Compare package size constraints with available surface-mount alternatives if space is limited. Verify input forward voltage drop compatibility with driving logic levels.

Part Context

The TIL198G belongs to the TIL197-TIL199 series from Isocom Components 2004 LTD. This series focuses on high-isolation optocouplers with Darlington outputs. It complements single-channel variants like the TIL197 by providing dual-channel functionality. The component serves as a bridge between low-power control circuits and higher-power loads while maintaining electrical safety standards.

Replacement Considerations

Publicly confirmed substitute part numbers are not explicitly listed in the provided source material. Cross-reference with other dual-channel Darlington optocouplers from Isocom or other manufacturers ensuring matching isolation voltage and package dimensions.