ZR40402R50STOA

Overview

The ZR40402R50STOA is a precision micropower voltage reference providing a nominal output of 5.0 volts, manufactured by Diodes Incorporated. It utilizes a bandgap circuit design and is housed in an E-Line, 3-pin (TO-92) package with the 'R' suffix indicating this specific through-hole configuration. The device operates within a recommended current range of 60µA to 15mA, ensuring stability without requiring external stabilizing capacitors. It features a typical temperature coefficient of 20ppm/°C and maintains performance across an automotive temperature range from -55°C to +125°C.

Feature Summary

• Bandgap circuit design provides stable voltage output without external capacitors
• Capable of withstanding transient effects and currents up to 200mA due to rugged construction
• Superior switching capability allows stabilization in less than 10 microseconds
• Suitable for low power and battery-powered applications

Applications

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

Procurement Notes

Verify the component status as the source datasheet indicates potential end-of-life or obsolescence for certain variants. Confirm the specific ordering suffix matches the required package type, as the 'R' suffix denotes the E-Line TO-92 package while other suffixes indicate surface mount options. Ensure compatibility with existing PCB footprints when replacing older designs.

Selection Notes

Select this component for applications requiring a precise 5.0V reference in space-constrained or through-hole designs. The wide operating temperature range makes it suitable for automotive environments. Consider the 2% tolerance variant if higher precision is not critical, as tighter tolerances may require different part numbers within the same family.

Part Context

This component belongs to the ZR4040-5.0 series of precision voltage references. The series includes various packages such as SOT23 and TO-92, with different tolerance options like 1% and 2%. The 'ZR40402R50' designation specifically identifies the 2% tolerance version in the E-Line package.

Replacement Considerations

LM4040B50FTA

FAQ

Does the ZR40402R50STOA require an external capacitor for stability?

No, the device is designed to be stable without an external stabilizing capacitor and can handle capacitive loads.

What is the maximum current the device can withstand during transients?

While the recommended operating current is up to 15mA, the rugged design allows it to withstand transient currents up to 200mA.