TIL191

Overview

The TIL191 is a single-channel transistor output optocoupler manufactured by Isocom Components 2004 LTD. It features an infrared LED input and a phototransistor output housed in a 4-pin DIP package. Key electrical specifications include a maximum forward current of 50 mA, a reverse voltage of 6 V, and a total power dissipation of 200 mW. The device provides an isolation voltage of 5.3 kVrms (5300 Vrms) between input and output. All electrical parameters are 100% tested during manufacturing to ensure reliability.

Feature Summary

• High isolation voltage capability for safe signal transmission across potential differences
• Transistor output configuration suitable for digital switching applications
• 100% electrical parameter testing ensures consistent performance quality

Applications

• General purpose signal isolation in industrial control systems
• Interface circuits connecting microcontrollers to high-voltage loads
• Switching power supply feedback loops

Procurement Notes

Verify the specific packaging variant required, as the TIL191 is available in both tube and tape-and-reel formats. Confirm that the supplier source documents explicitly list the TIL191 part number from Isocom Components 2004 LTD. Ensure compliance with RoHS directives if applicable to your assembly process. Cross-reference the datasheet for exact pinout configurations to prevent installation errors.

Selection Notes

Select this component when a robust, cost-effective solution for galvanic isolation is needed. The 50 mA forward current rating supports direct driving from standard logic outputs in many cases. The 5.3 kVrms isolation rating exceeds common safety standards for low-power electronics. Consider the DIP-4 package for through-hole prototyping or PCB designs requiring manual assembly capabilities.

Part Context

Isocom Components 2004 LTD specializes in infrared optoelectronic devices, including optocouplers and optoswitches. The TIL191 belongs to their general-purpose transistor output series. This product line emphasizes reliability through comprehensive electrical testing. The manufacturer leverages decades of industry expertise to produce components for diverse electronic applications.

Replacement Considerations

Publicly confirmed substitute part numbers for the TIL191 were not identified in the provided documentation. Verify compatibility with alternative models by comparing pinouts, isolation voltages, and current transfer ratios against official datasheets before substitution.