ZRC500A01STOA

Overview

The ZRC500A01STOA is a precision micropower voltage reference providing a fixed output of 5.0 volts, manufactured by Diodes Incorporated. It utilizes a bandgap circuit design and is housed in an E-Line-3 (TO-92) package with a ±1% initial accuracy tolerance. The device operates within a temperature range of -40°C to +85°C, featuring a typical temperature coefficient of 30 ppm/°C and a maximum of 90 ppm/°C. Recommended operating current ranges from 25μA to 5mA, with a minimum knee current of 19μA. It supports a maximum reverse current of 25mA and withstands transient currents up to 200mA.

Feature Summary

• Bandgap circuit design delivers stable 5.0V reference without requiring external stabilizing capacitors.
• Low knee current operation enables efficient performance in battery-powered and low-power applications.
• Rugged construction allows the device to withstand transient effects and high currents up to 200mA.
• Fast transient response achieves stable operating conditions in less than 10 microseconds.

Applications

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

Procurement Notes

Verify the specific suffix 'A01' confirms the 1% tolerance and E-Line-3 package configuration before procurement. Confirm that the STOA designation aligns with the manufacturer's standard packaging for this component variant. Ensure compatibility with through-hole mounting requirements specified for the TO-92 style enclosure.

Selection Notes

Select this component when a precise 5.0V shunt reference is required in a through-hole form factor. The ±1% tolerance suits applications demanding higher accuracy than standard 2% or 3% variants. Consider the low knee current for designs prioritizing minimal quiescent power consumption in portable devices.

Part Context

This part belongs to the ZRC500 series of precision voltage references from Diodes Incorporated. The series offers various tolerance options and package styles, including surface mount SOT23 and SO8, as well as through-hole configurations like the E-Line-3 used here. It serves as a fundamental building block for power management and signal conditioning circuits.

Replacement Considerations

LM4040C50ILPR

FAQ

Does the ZRC500A01STOA require an external capacitor for stability?

No, the device provides a stable voltage without the need for an external stabilizing capacitor and remains stable even with capacitive loads.

What is the typical slope resistance of this voltage reference?

The typical slope resistance is 0.4Ω, with a maximum value of 2Ω under specified test conditions.