TCLT1119

Overview

The TCLT1119 is a transistor output optocoupler from Vishay Semiconductor Opto Division, featuring an NPN phototransistor with base lead for enhanced switching performance. It offers a current transfer ratio (CTR) range of 200% to 400% at a forward current of 5 mA. The device provides 5000 Vrms isolation voltage and operates within a temperature range of -55°C to +100°C. Key electrical parameters include a maximum collector-emitter voltage of 70 V, a collector current of 50 mA, and a forward voltage of 1.6 V. The component is housed in a low-profile SOP-6L5 surface-mount package.

Feature Summary

• Enhanced switching speed via integrated base lead on the phototransistor
• High current transfer ratio flexibility ranging from 200% to 400%
• Robust insulation capability with 5000 Vrms isolation test voltage

Applications

• Industrial control systems requiring fast signal isolation
• Computer peripheral interface circuits
• Power supply feedback loops for voltage regulation

Procurement Notes

Verify the specific CTR bin (200-400%) required for your application against the ordering information, as flexibility options exist. Confirm the SOP-6L5 package dimensions match your PCB footprint constraints. Ensure the supplier provides valid RoHS compliance documentation. Check for recent product change notifications regarding manufacturing updates. Validate that the tape and reel quantity aligns with your production volume needs.

Selection Notes

Select this component when high-speed switching is critical compared to standard couplers. The base lead allows for faster turn-off times, making it suitable for applications demanding rapid signal transitions. Consider the 5000 Vrms isolation rating for safety-critical interfaces. Evaluate the 200-400% CTR range to ensure sufficient gain for your input drive conditions without excessive power consumption.

Part Context

The TCLT1119 belongs to Vishay's family of transistor output optocouplers designed for general-purpose isolation. It shares architectural similarities with models like the TCLT1009 but distinguishes itself through the inclusion of a base lead for improved dynamic response. This series targets applications needing reliable galvanic isolation with moderate to high speed requirements in compact surface-mount form factors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical parameter overlaps before considering alternative generic transistor-output optocouplers. Ensure any replacement maintains the 5000 Vrms isolation rating and SOP-6L5 package profile.