ZRC250A01STZ

Overview

The ZRC250A01STZ is a precision micropower shunt voltage reference IC manufactured by Diodes Incorporated, delivering a fixed output of 2.5V with ±1% tolerance. It utilizes a bandgap circuit design and operates within an industrial temperature range of -40°C to 85°C. The device requires no external stabilizing capacitor and maintains stability with capacitive loads. Recommended operating current ranges from 20µA to 5mA, with absolute maximum ratings supporting up to 25mA reverse/forward current and transient currents up to 200mA.

Feature Summary

• Bandgap circuit design provides stable voltage without requiring external stabilizing capacitors
• Capable of withstanding transient effects and high surge currents up to 200mA due to rugged construction
• Fast transient response achieves stable operating conditions in less than 10 microseconds
• Low knee current characteristic enables efficient operation in low power and battery-powered applications

Applications

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

Procurement Notes

Verify the specific package suffix for the STZ designation against official manufacturer documentation, as datasheets list E-Line (TO-92) variants with suffixes A, R, or Y. Confirm RoHS compliance status and ensure the ±1% tolerance variant matches the required application accuracy. Cross-reference the part number with current availability lists, as older manufacturing runs may have limited stock or obsolescence status.

Selection Notes

Select this component when a precise 2.5V reference is needed in space-constrained designs using through-hole packages. The low knee current makes it suitable for battery-operated devices where minimizing quiescent drain is critical. Ensure the load capacitance does not exceed stability limits defined in the electrical characteristics. Consider the ±1% tolerance if tighter voltage accuracy is required compared to standard 2% or 3% variants.

Part Context

This component belongs to the ZRC250 family of precision 2.5-volt voltage references produced by Diodes Incorporated. The series includes various package options such as SOT23, SO8, and TO-92 styles, catering to both surface mount and through-hole requirements. The ZRC250A01STZ specifically denotes the 2.5V reference with 1% tolerance housed in a TO-92 style package.

Replacement Considerations

LM4040C50ILPR