ZR40402R50STZ

Overview

The ZR40402R50STZ is a precision micropower shunt voltage reference providing a fixed 5.0 V output. It utilizes a bandgap circuit design and operates within a recommended current range of 60 µA to 15 mA, with an absolute maximum reverse current of 25 mA. The device features a typical temperature coefficient of 20 ppm/°C and a slope resistance of 0.33 Ω. It is housed in an E-Line (TO-92) package and supports an operating temperature range from -55 °C to +125 °C.

Feature Summary

• Bandgap circuit design for stable voltage without external stabilizing capacitors
• Capacitive load stability with transient response stabilization in less than 10 microseconds
• Robust construction capable of withstanding transient currents up to 200 mA

Applications

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

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm the exact package type and tolerance level. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer before procurement. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component for applications requiring high accuracy and low power consumption in space-constrained designs. The TO-92 package offers through-hole mounting options suitable for prototyping or specific mechanical constraints. Consider the 2% tolerance and temperature coefficient when designing circuits sensitive to voltage drift over wide temperature ranges.

Part Context

This part belongs to the ZR4040 series of micropower voltage references manufactured by Diodes Incorporated. The series includes variants with different output voltages, tolerances, and package styles such as SOT23 and E-Line. These devices are designed to provide reliable performance in industrial and automotive environments while maintaining low operating currents.

Replacement Considerations

LM4040C50ILPR (Texas Instruments)

FAQ

Does the ZR40402R50STZ require an external capacitor for stability?

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

What is the minimum operating current for this voltage reference?

The minimum operating current is 60 µA across the full temperature range of -55 °C to +125 °C.