S-19405B27A-A8T1U4

Supervisors Overview

The S-19405B27A-A8T1U4 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 2.7 V. The device provides one monitored input with an active high CMOS output type. Key functional attributes include manual reset capability, an integrated watchdog timer, and no battery backup switch. The reset delay time is specified at 25 us. It supports surface mount installation in a TMSOP-8 package and functions reliably across a 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
• Delivers active high CMOS output signal upon voltage detection

Supervisors Applications

• Embedded system power supervision
• Microcontroller reset circuitry
• Industrial control unit monitoring

Supervisors Procurement Notes

Verify the specific suffix A8T1U4 against official ABLIC documentation to confirm tape and reel packaging details and exact marking codes. Ensure the ordering information matches the required operating temperature range and package variant. Cross-reference the manufacturer part number with authorized distributor catalogs to validate current availability status and lead times before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a 2.7 V threshold is required for systems operating up to 6 V. The active high output suits logic families requiring high-level assertion for reset signals. The wide industrial temperature range makes it suitable for harsh environments. Verify that the TMSOP-8 footprint aligns with the PCB layout constraints and that the manual reset feature meets the system design requirements.

Supervisors Part Context

This part belongs to the S-19405 series of supervisory circuits from ABLIC. The series is designed for precise voltage monitoring in portable and industrial devices. The B27A designation indicates the specific 2.7 V threshold version. The A8T1U4 suffix defines the packaging and shipping configuration provided by the manufacturer.

Supervisors Replacement Considerations

Check for direct substitutes within the S-19405 series with different threshold voltages if system requirements change. Verify compatibility with alternative manufacturers offering similar voltage monitors with active high outputs and watchdog features in TMSOP-8 packages.