RS803-2.63YSF3

Overview

The RS803-2.63YSF3 is a power supervisor manufactured by Runic Technology, designed to monitor voltage levels and generate reset signals. It features a threshold voltage (Vth) of 2.63V and operates within a temperature range of -40°C to 125°C (TA). The component is housed in a TO-236-3, SC-59, or SOT-23-3 package, providing a compact solution for circuit protection and system reliability in electronic applications.

Feature Summary

• Provides single-channel supervision with open drain or open collector output capability
• Ensures system stability through precise voltage threshold monitoring
• Operates reliably across extended industrial temperature ranges

Applications

• Embedded system reset circuits
• Microcontroller power management
• Battery-powered device supervision

Procurement Notes

Verify the manufacturer designation as Jiangsu RUNIC Tech or Runic Technology when sourcing. Confirm the specific package variant matches the required footprint, as sources list TO-236-3, SC-59, and SOT-23-3 interchangeably for this part number. Ensure the threshold voltage specification aligns with the 2.63V requirement for your design.

Selection Notes

Select this component when a low-pin-count supervisor is needed for space-constrained designs. The SOT-23-3 form factor offers a balance between thermal performance and board area efficiency. Consider the 2.63V threshold against the target supply rail to ensure proper reset triggering during brown-out conditions.

Part Context

This device belongs to the RS803 series of supervisors from Runic Technology. The series focuses on general-purpose analog ICs for system protection. The '2.63' suffix indicates the specific trip point voltage, while 'YSF3' denotes the package type and pin configuration compatible with standard surface-mount assembly processes.

Replacement Considerations

Check for direct pin-compatible alternatives within the same series that offer different threshold voltages if the 2.63V level is unsuitable. Verify that any substitute maintains the open-drain/open-collector output structure and similar operating temperature specifications.