ZRC400F03TA

Overview

The ZRC400F03TA is a precision shunt voltage reference IC manufactured by Diodes Incorporated, providing a fixed output of 4.096V with an initial tolerance of ±3%. It operates within a temperature range of -40°C to +85°C and features a typical temperature coefficient of 30ppm/°C. The device requires a minimum operating current of 23µA and supports up to 5mA, housed in a compact SOT-23 surface-mount package.

Feature Summary

• Bandgap circuit design delivering stable micropower voltage reference without external stabilizing capacitors
• Capable of withstanding transient effects and currents up to 200mA due to rugged 20-volt processing
• Superior switching capability enabling stable operating conditions within microseconds

Applications

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

Procurement Notes

Verify the specific ordering suffix 'F' corresponds to the SOT-23 package configuration as documented in the manufacturer's ordering information table. Confirm that the component status aligns with current availability requirements, noting that certain variants within this family may be obsolete. Ensure compliance with RoHS3 specifications for environmental standards.

Selection Notes

Select this component when a precise 4.096V reference is required in space-constrained designs utilizing surface-mount technology. The low knee current characteristic makes it suitable for battery-powered applications where minimizing quiescent power consumption is critical. Verify that the load current remains within the recommended operating range of 23µA to 5mA for optimal performance.

Part Context

This part belongs to the ZRC400 series of precision voltage references from Diodes Incorporated. The series utilizes bandgap technology to achieve high accuracy and stability across industrial temperature ranges. The ZRC400F03TA specifically denotes the 3% tolerance variant packaged in the small outline SOT-23 form factor, distinguishing it from higher precision or through-hole alternatives.

Replacement Considerations

The datasheet notes that E-Line (through-hole) variants are obsolete, recommending the SOT-23 package as the closest alternative. For direct replacements, verify equivalent shunt references with matching 4.096V output, similar tolerance levels, and compatible SOT-23 packaging from other manufacturers.