ZRC250A02STOB

Overview

The ZRC250A02STOB is a precision micropower voltage reference IC manufactured by Diodes Incorporated. It utilizes a bandgap circuit design to provide a fixed output voltage of 2.5V with an initial tolerance of ±2%. The device operates within a recommended current range of 20μA to 5mA and features a typical temperature coefficient of 30ppm/°C. It is housed in an E-Line, 3-pin TO-92 package suitable for through-hole mounting. The component supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Bandgap circuit design provides stable voltage without requiring external stabilizing capacitors
• Low knee current characteristic allows operation at minimal power levels
• Rugged construction withstands transient effects and high currents up to 200mA
• Fast transient response reaches stable operating conditions in microseconds

Applications

• Battery powered equipment
• Portable devices
• Instrumentation systems
• Test equipment

Procurement Notes

Verify the exact package suffix against official documentation, as ordering codes define specific pin configurations and tolerances. Confirm that the required accuracy aligns with the ±2% specification. Ensure the application current remains within the 20μA to 5mA recommended range for optimal performance. Check for any updated datasheet revisions or alternative package options if surface mount variants are preferred.

Selection Notes

Select this component when a precise 2.5V reference is needed in a through-hole format. The low knee current makes it suitable for battery-operated designs where minimizing quiescent drain is critical. Consider the ±2% tolerance for applications requiring moderate accuracy. Verify that the thermal dissipation capabilities of the TO-92 package meet the ambient temperature requirements of the target environment.

Part Context

This part belongs to the ZRC250 series of precision voltage references from Diodes Incorporated. The series offers various tolerance grades and package types, including SOT23 and SO8. The A02 designation specifically indicates the 2% tolerance variant within the E-Line package family. This series is designed for industrial temperature ranges and general-purpose precision applications.

Replacement Considerations

LM4040C50ILPR is a confirmed substitute part number.