ZRA245F03TA

Overview

The ZRA245F03TA is a precision shunt voltage reference from Diodes Incorporated, delivering a nominal output of 2.45V with ±3% initial accuracy. It utilizes a bandgap circuit design to maintain stability without requiring an external stabilizing capacitor and remains stable under capacitive loads. The device operates within a current range of 2mA to 120mA and features a typical temperature coefficient of 15ppm/°C. Packaged in the compact SOT-23 form factor, it supports industrial operating temperatures from -40°C to +85°C.

Feature Summary

• Bandgap circuit design provides a stable 2.45V reference voltage
• Operates stably without external stabilizing capacitors or complex load requirements
• Compact surface-mount package suitable for space-constrained applications
• Industrial temperature range operation ensures reliability across varying environments

Applications

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

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number and ordering suffix against official Diodes Incorporated documentation. Confirm that the specific package variant matches the required footprint and pin configuration for the target application. Ensure compliance with RoHS directives and check for any recent product change notices affecting manufacturing sources or material composition prior to final procurement authorization.

Selection Notes

Select this component when a precise 2.45V reference is required in a small surface-mount package. The ±3% tolerance suits general instrumentation where high precision is not critical. Consider the 2mA to 120mA operating window to ensure adequate bias current while managing power dissipation. Verify thermal performance within the -40°C to +85°C range for the intended environment.

Part Context

The ZRA245 series represents a family of precision voltage references designed for cost-effective and space-saving implementations. Available in multiple packages including SOT-23, SO8, and TO-92 styles, the series offers various tolerance options. The F03 suffix specifically denotes the SOT-23 package with 3% initial accuracy, aligning with standard industry requirements for portable and industrial electronics.

Replacement Considerations

Direct substitutes include other ZRA245 variants with different tolerances or packages, such as ZRA245F02TA (2% tolerance) or ZRA245A03TA (TO-92 package). Cross-vendor equivalents must match the 2.45V output, SOT-23 footprint, and similar electrical characteristics like temperature coefficient and operating current range.