IS4N45X

Overview

The IS4N45X is a single-channel optoisolator manufactured by Isocom Components 2004 LTD. It features a Darlington transistor output with a base terminal, housed in a 6-pin DIP package. The device provides an isolation voltage of 5300Vrms. Key electrical parameters include a maximum forward voltage of 1.4V and a typical rise time of 4μs. It operates within a temperature range of -30°C to 100°C.

Feature Summary

• Integrates a Darlington compound transistor output configuration for high current gain.
• Includes a dedicated base terminal on the output side for enhanced control flexibility.
• Provides robust galvanic isolation capability suitable for demanding industrial environments.

Applications

• Industrial automation control systems
• Power supply feedback loops
• Solid-state relay driver circuits

Procurement Notes

Verify the specific suffix (e.g., DG, SM) against official datasheets to confirm package type and tape-and-reel specifications. Ensure compatibility with system voltage requirements and thermal management needs before procurement.

Selection Notes

Select this component when high current drive capability is required from a low-power input signal. The integrated base output allows for faster switching or lower saturation voltage compared to standard transistor outputs. Verify pinout compatibility with existing PCB layouts.

Part Context

This part belongs to the Isocom Components portfolio of optoelectronic isolators. The company specializes in infrared optoelectronic devices with a history dating back to the 1980s. The IS4N45X represents their standard plastic encapsulated offerings for general-purpose isolation applications.

Replacement Considerations

Check for direct equivalents such as the PC814 series or HCPL-2630 if pinouts differ. Verify that replacement parts maintain the 5300Vrms isolation rating and Darlington output characteristics to ensure circuit functionality remains unchanged.