ZRC330F02TC

Overview

The ZRC330F02TC is a precision micropower voltage reference IC manufactured by Diodes Incorporated. It utilizes a bandgap circuit design to provide a stable 3.3V output with a tolerance of ±2%. The device operates within a current range of 20µA to 5mA and features a low knee current of 15µA typical. It exhibits an average temperature coefficient of 50ppm/°C and a slope resistance of 0.6Ω typical. The component is housed in a small outline SOT-23 package, suitable for space-constrained applications.

Feature Summary

• Bandgap circuit design provides a precise 3.3V reference without requiring external stabilizing capacitors.
• Capable of withstanding transient effects and currents up to 200mA due to rugged design and 20-volt processing.
• Superior switching capability allows the device to reach stable operating conditions in only a few microseconds.

Applications

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

Procurement Notes

Verify that the ordering suffix 'F' corresponds to the SOT-23 package and '02' indicates the ±2% tolerance level as defined in the manufacturer's official documentation. Confirm the specific tape and reel quantity requirements against the standard 3000 units per reel specification provided in the datasheet. Ensure compatibility with surface mount assembly processes given the small outline package dimensions.

Selection Notes

Select this component when a fixed 3.3V reference with ±2% accuracy is required in a compact footprint. The low knee current of 15µA makes it suitable for battery-powered designs where minimizing quiescent consumption is critical. Verify that the application load does not exceed the recommended operating current of 5mA while ensuring the minimum operating threshold of 20µA is maintained for regulation stability.

Part Context

This part belongs to the ZRC330 series of precision voltage references from Diodes Incorporated. The series includes variants with different tolerances (±1%, ±2%, ±3%) and packages. The ZRC330F02TC specifically denotes the 2% tolerance version in the SOT-23 package, distinguishing it from the obsolete E-Line variants which utilized different packaging technologies.

Replacement Considerations

The datasheet notes that all ZRC330A variants are obsolete. The closest alternative for those legacy parts is the SOT-23 package configuration found in the ZRC330F series. No other direct cross-manufacturer substitutes are explicitly confirmed in the provided source material.

FAQ

Does the ZRC330F02TC require an external capacitor for stability?

No, the ZRC330 design provides a stable voltage without an external capacitor and is stable with capacitive loads.

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

While the recommended operating current is up to 5mA, the rugged design allows the reference to withstand transient currents up to 200mA.