ZRA124F01TC

Overview

The ZRA124F01TC is a precision micropower voltage reference utilizing bandgap circuit design to deliver a stable 1.24V output. It operates within an industrial temperature range of -40°C to +85°C and requires no external stabilizing capacitor. The device supports operating currents from 50µA to 5mA, with absolute maximum ratings allowing transient effects up to 200mA. Key electrical parameters include a typical temperature coefficient of 30ppm/°C, slope resistance of 0.65Ω, and wideband noise voltage of 40µV(rms). It is housed in a compact SOT-23 surface-mount package.

Feature Summary

• Bandgap circuit design ensures high precision without requiring external capacitors
• Capable of withstanding transient effects and high current surges up to 200mA
• Rapid stabilization reaching operating conditions in under 10 microseconds
• Designed for low power consumption suitable for battery-powered applications

Applications

• Battery powered and portable equipment
• Metering and measurement systems
• Precision power supplies
• Data acquisition systems

Procurement Notes

Verify the manufacturer origin, as the component was originally produced by Zetex Semiconductors before its acquisition by Diodes Incorporated. Confirm that the datasheet specifications align with current manufacturing standards. Ensure the ordering suffix matches the required reel quantity and tape width for your assembly line. Check for any product change notifications regarding material or process updates.

Selection Notes

Select this component when space constraints require a small SOT-23 package while maintaining high voltage stability. It is appropriate for designs needing fast transient response and robustness against current spikes. Consider the specific operating current requirements, ensuring they fall within the recommended 50µA to 5mA range for optimal performance. Verify compatibility with the target industrial temperature range.

Part Context

This part belongs to the ZRA124 series of two-terminal voltage references. It serves as a fundamental building block for analog circuits requiring a precise, stable voltage source independent of supply variations. The series is characterized by its simplicity, requiring minimal external components, which reduces overall system complexity and board space.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.