S-19401J47A-K8T2U4

Supervisors Overview

The S-19401J47A-K8T2U4 is a CMOS supervisory circuit from the S-19401 series manufactured by ABLIC Inc. It functions as a voltage monitor and watchdog timer with a fixed threshold voltage of 4.7 V. The device features an active high CMOS output, manual reset capability, and a reset delay time of 25 µs. It operates within a supply voltage range up to 6 V and supports temperatures from -40°C to +125°C. The component is housed in a TMSOP-8 package and is supplied in reels.

Supervisors Feature Summary

• Integrated watchdog timer functionality for system reliability
• Manual reset input for user-controlled initialization
• Active high CMOS output driver
• Wide operating temperature range support

Supervisors Applications

• Embedded system power supervision
• Microcontroller reset monitoring
• Industrial control unit voltage tracking
• Automotive electronic module protection

Supervisors Procurement Notes

Verify the specific suffix K8T2U4 against official ABLIC documentation to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status through current manufacturer declarations. Ensure compatibility with existing PCB footprint designs for the TMSOP-8 package before procurement finalization.

Supervisors Selection Notes

Select this component when a fixed 4.7 V threshold is required for system supervision. The active high output suits logic families requiring positive assertion. Consider the 25 µs reset delay for timing-sensitive applications. Verify that the single-input configuration meets the monitoring requirements without needing additional channels.

Supervisors Part Context

This part belongs to the S-19401 series of supervisory circuits developed using CMOS technology. The series is characterized by low current consumption and integrated watchdog timer functions. It complements the S-19400 series by offering specific threshold options and packaging variants for diverse embedded design needs.

Supervisors Replacement Considerations

Check ABLIC datasheets for other S-19401 variants with different threshold voltages if 4.7 V is unsuitable. Verify pinout compatibility with alternative packages like HSNT-8 if space constraints change. Cross-reference with similar watchdog timers from other manufacturers only after confirming electrical parameter equivalence.