ZRC500A03STZ

Overview

The ZRC500A03STZ is a precision micropower shunt voltage reference providing a fixed 5.0V output with ±3% tolerance. It utilizes a bandgap circuit design to achieve stability without requiring an external stabilizing capacitor, making it suitable for space-constrained designs. The device operates within a recommended current range of 25μA to 5mA and supports through-hole mounting in a TO-92 package.

Feature Summary

• Bandgap circuit design ensures stable voltage reference without external capacitors
• Low knee current typical value of 19μA enables efficient operation in low-power applications
• Rugged construction withstands transient effects and currents up to 200mA
• Fast transient response reaches stable operating conditions in less than 10μs

Applications

• Battery powered and portable equipment
• Instrumentation systems
• Test equipment
• Metering and measurement systems

Procurement Notes

Verify the specific suffix 'STZ' against manufacturer documentation, as standard datasheets list 'A03' for E-Line packages. Confirm lead times and availability status directly with Diodes Incorporated or authorized distributors, as component lifecycle status may vary by region and date.

Selection Notes

Select this component when a fixed 5.0V reference with ±3% accuracy is required in a through-hole form factor. Ensure the application current remains between 25μA and 5mA for optimal performance. Consider the 90ppm/°C temperature coefficient if operating across wide industrial temperature ranges.

Part Context

This part belongs to the ZRC500 family of precision voltage references manufactured by Diodes Incorporated. The family includes variants with different tolerances (1%, 2%, 3%) and package options such as SOT23, SO8, and E-Line. The ZRC500 series is designed for general-purpose precision referencing in power management circuits.

Replacement Considerations

LM4040C50ILPR is a confirmed substitute part number available from Texas Instruments.