S-19405A34A-K8T2U4

Supervisors Overview

The S-19405A34A-K8T2U4 is a voltage monitor supervisory circuit manufactured by ABLIC Inc. It operates within a supply voltage range of up to 6 V and features a threshold voltage of 3.4 V. The device provides one monitored input with an active high CMOS output type. Key functional parameters include a manual reset capability, an integrated watchdog timer, and no battery backup switch. The reset delay time is specified at 25 us. The component is housed in a TMSOP-8 package for surface mount installation and supports an operating temperature range from -40 C to +125 C.

Supervisors Feature Summary

• Integrates a watchdog timer for system reliability monitoring
• Supports manual reset functionality via dedicated pin
• Provides active high CMOS output signal
• Operates across extended industrial temperature ranges

Supervisors Applications

• Embedded system power supervision
• Microcontroller reset circuitry
• Industrial control board monitoring
• Automotive electronic unit protection

Supervisors Procurement Notes

Verify the specific suffix K8T2U4 against the manufacturer's current datasheet to confirm tape and reel packaging specifications and pinout compatibility. Ensure the 3.4 V threshold aligns with the target system's logic levels. Confirm RoHS compliance status directly with the supplier documentation prior to finalizing procurement orders.

Supervisors Selection Notes

Select this component when a fixed 3.4 V threshold is required for single-input voltage monitoring. The active high output suits systems expecting a high signal during normal operation. Verify that the TMSOP-8 footprint matches the PCB design constraints. Consider the 25 us reset delay timing relative to the downstream processor startup requirements.

Supervisors Part Context

This part belongs to the S-19405 series of supervisory circuits designed for precise voltage monitoring applications. The series offers various threshold voltages and output polarities to accommodate different system architectures. The K8T2U4 suffix indicates specific packaging and handling characteristics defined by ABLIC for mass production environments.

Supervisors Replacement Considerations

Direct substitutes require matching the 3.4 V threshold, active high output, and TMSOP-8 package. Verify equivalent watchdog and manual reset features. Cross-reference pinouts carefully as minor variations exist within the broader S-19405 family.