S-191EM51RA-A8T1U7

Supervisors Overview

The S-191EM51RA-A8T1U7 is a window voltage detector manufactured by ABLIC Inc., designed for monitoring power supply voltages in automotive and industrial applications. It operates within a maximum supply voltage of 36 V and functions across a temperature range from -40°C to +125°C. The device features a threshold voltage of 5.1 V and includes a backup battery switch function. It provides active high and active low output types with a reset delay time of 10 ms. The component is housed in an HSNT-8 surface-mount package and does not include manual reset or watchdog timer capabilities.

Supervisors Feature Summary

• Supports dual active high and active low output configurations for flexible logic interfacing.
• Integrates a backup battery switch function to maintain monitoring during main power transitions.
• Engineered for high-voltage environments with a maximum operating voltage of 36 V.
• Rated for extended automotive-grade reliability with operation up to 125°C.

Supervisors Applications

• Automotive battery voltage monitoring systems
• Industrial power supply supervision circuits
• Backup power switching management

Supervisors Procurement Notes

Verify the specific ordering suffix and package variant against the manufacturer's current datasheet before procurement. Confirm that the HSNT-8 package availability aligns with your assembly requirements. Ensure the 5.1 V threshold specification meets your circuit design needs. Check for any recent revisions to the electrical characteristics or thermal ratings. Validate compliance with RoHS directives as indicated in the product documentation.

Supervisors Selection Notes

Select this component when a window voltage detector with both active high and low outputs is required. Consider the 36 V maximum input rating for high-voltage bus monitoring. The 10 ms reset delay should be evaluated against system noise immunity requirements. Verify that the HSNT-8 package size fits the PCB layout constraints. Ensure the -40°C to +125°C temperature range covers the operational environment.

Supervisors Part Context

This part belongs to the S-191 series of voltage detectors from ABLIC, which are designed for robust performance in demanding environments. The series typically offers high accuracy and stability for critical monitoring tasks. The S-191EM51RA-A8T1U7 specifically targets applications requiring wide input voltage ranges and multiple output polarities. It complements other ABLIC power management solutions for comprehensive system protection.

Supervisors Replacement Considerations

Consult the official ABLIC replacement guide for direct equivalents. Verify pin compatibility and electrical specifications such as threshold voltage and reset delay. Ensure the replacement part supports the same HSNT-8 package and temperature range. Cross-reference functional features like the backup switch and output types.