CAT1026LI-42-G

Supervisors Overview

The CAT1026LI-42-G is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It features a single monitored input with a threshold voltage of 4.2 V and an overvoltage threshold of 4.5 V. The device operates within a supply voltage range of 2.7 V to 5.5 V and consumes 3 mA of operating current. It lacks manual reset and watchdog timer functions. The component is housed in a PDIP-8 through-hole package and supports an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides voltage supervision for CPU systems with a fixed 4.2 V threshold
• Includes integrated 2K EEPROM storage capability
• Operates reliably across the full industrial temperature range

Supervisors Applications

• CPU power supply monitoring
• Voltage supervision in embedded systems
• Industrial control circuits requiring EEPROM integration

Supervisors Procurement Notes

Verify current availability status as this part may be discontinued or subject to specific ordering requirements. Confirm RoHS compliance details via official documentation before procurement. Check for any pending Product Change Notices (PCN) that might affect material composition or manufacturing location. Ensure the PDIP-8 package form factor matches your PCB layout constraints.

Supervisors Selection Notes

Select this component when a through-hole solution with integrated non-volatile memory is required for voltage supervision. The fixed 4.2 V threshold suits standard 5 V logic systems. Consider alternative packages like SOIC if surface mount assembly is preferred. Verify that the absence of a watchdog timer meets system safety requirements.

Supervisors Part Context

This part belongs to the CAT1026 series of supervisory circuits from onsemi. It shares functional similarities with other variants in the family but differs in package type and specific threshold settings. The LI suffix indicates a through-hole PDIP package, distinguishing it from surface-mount options like WI or ZI variants within the same product line.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Evaluate CAT1026WI-42-G for surface mount compatibility or CAT1025LI-42-G if legacy through-hole alternatives are acceptable, noting potential differences in lifecycle status.