ZRA245N803TA

Overview

The ZRA245N803TA is a precision shunt voltage reference manufactured by Diodes Incorporated, delivering a nominal reverse breakdown voltage of 2.45 V. It utilizes a bandgap circuit design to maintain stability without requiring an external stabilizing capacitor and remains stable with capacitive loads. The device operates within a recommended current range of 2 mA to 120 mA and supports an operating temperature range from -40°C to +85°C. This specific part number indicates the component is housed in an SO-8 surface mount package with a tolerance accuracy of ±3%.

Feature Summary

• Bandgap circuit design ensures precise voltage regulation
• Capacitor-free operation with capacitive load stability
• Available in small outline packages for space-constrained designs

Applications

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

Procurement Notes

Verify the exact suffix configuration against the manufacturer's ordering information to confirm package type and tolerance level. Ensure that the selected variant matches the required PCB footprint and electrical specifications for the target application. Cross-reference datasheet revision dates to confirm compliance with current manufacturing standards.

Selection Notes

Select this component when a compact surface-mount solution is required for precision voltage referencing. The SO-8 package offers a balance between thermal dissipation and board space efficiency. Consider the ±3% tolerance and typical 15 ppm/°C temperature coefficient for applications demanding moderate precision over the industrial temperature range.

Part Context

The ZRA245 series provides a family of precision voltage references available in multiple form factors including SOT23, SO-8, and E-Line through-hole packages. The N8 suffix specifically denotes the SO-8 surface mount option. This series is designed to replace larger discrete components while maintaining high accuracy and low noise performance in analog signal processing circuits.

Replacement Considerations

Compatible substitutes include other 2.45V shunt references such as the TL431 or LM4040, though pinouts and electrical characteristics may differ. Verify equivalent tolerance, temperature coefficient, and operating current ranges before implementation.