RS811-2.93YA4

Overview

The RS811-2.93YA4 is a single-channel voltage supervisor and reset IC manufactured by Runic Technology, housed in an SOT-143 package. It monitors supply voltages within the 3.05V to 5.5V range with a precise threshold of 2.93V. The device features an active-low output and includes a fixed 200ms reset timeout to ensure system stability during power transitions. Operating across an extended temperature range from -40°C to +125°C, it draws a typical quiescent current of 20µA, making it suitable for low-power applications requiring reliable voltage monitoring.

Feature Summary

• Active-low reset output ensures compatibility with standard digital logic interfaces
• Fixed 200ms timeout prevents premature reset during power-up sequences
• Extended industrial temperature rating supports operation in harsh environments

Applications

• Portable electronic devices requiring efficient power management
• Microcontroller systems needing stable voltage supervision
• Industrial control units operating in variable temperature conditions

Procurement Notes

Verify the exact suffix YA4 corresponds to the SOT-143 package and 2.93V threshold when ordering. Confirm that the active-low polarity matches your system design requirements. Ensure the 200ms timeout aligns with your microcontroller's startup time specifications. Check for RoHS compliance documentation if required for your manufacturing process.

Selection Notes

Select this component when a single-channel monitor with a 2.93V threshold is needed. The SOT-143 package offers space efficiency for compact designs. Consider the 20µA quiescent current for battery-powered applications. Verify that the active-low output logic fits your existing circuit architecture without additional inversion components.

Part Context

This part belongs to Runic Technology's line of voltage supervisors designed for general-purpose monitoring. The RS811 series typically integrates basic reset functionality with high accuracy. These components are engineered to replace older supervisor ICs while offering improved power consumption metrics. The specific model targets cost-sensitive applications requiring reliable performance.

Replacement Considerations

Direct substitutes must match the 2.93V threshold, SOT-143 package, and active-low output. Verify pinout compatibility before swapping to avoid circuit damage. Ensure the replacement maintains the 200ms timeout characteristic. Check thermal ratings to confirm suitability for the intended operating environment.