RS811-4.00YA4

Overview

The RS811-4.00YA4 is a bidirectional supervisor integrated circuit manufactured by Runic Technology, designed for monitoring single voltage rails in electronic systems. Housed in a compact SOT-143 package, this device provides a reset signal when the monitored voltage drops below or exceeds specific thresholds. It features a manual reset input capability and operates within an extended temperature range of -40°C to +125°C. The component includes a fixed reset timeout period of 200ms to ensure stable system recovery after power events.

Feature Summary

• Bidirectional voltage monitoring with manual reset input functionality
• Extended operating temperature range suitable for harsh environments
• Compact SOT-143 surface-mount package design

Applications

• Single voltage rail supervision in embedded systems
• Power management circuits requiring manual reset control
• Industrial equipment operating in extreme temperatures

Procurement Notes

Verify the exact threshold voltage corresponding to the '4.00' suffix against the official datasheet before procurement. Confirm that the SOT-143 package footprint matches your PCB layout requirements. Ensure compatibility with the required manual reset logic levels and check the specified 200ms timeout duration against system timing constraints.

Selection Notes

Select this component when a single-channel supervisor with bidirectional monitoring capabilities is required. The manual reset feature makes it suitable for applications where external intervention is needed to clear fault conditions. Consider the SOT-143 package size if space constraints are critical. Verify that the operating temperature range meets the environmental demands of the target application.

Part Context

The RS811 series from Runic Technology consists of voltage supervisors designed for reliable power management. This specific model belongs to the bidirectional monitoring category, offering flexibility in detecting both over-voltage and under-voltage conditions. The series utilizes standard packaging options to facilitate integration into various consumer and industrial electronic designs.

Replacement Considerations

Cross-reference part numbers such as RS811-2.63YA4 or RS811-2.93YA4 for alternative threshold voltages within the same series. These substitutes share identical package types and functional characteristics but differ in trip points. Verify electrical specifications match before substitution.