SG1503T

Overview

The SG1503T is a monolithic precision voltage reference generator manufactured by Microchip Technology. It provides a stable 2.5 V output with an initial accuracy of ±1%. The device features a temperature coefficient of 10 ppm/°C and operates within a supply voltage range of 12 V to 36 V. It draws a typical operating current of 2.2 mA and supports a maximum output current of 10 mA. The component is housed in a 3-pin TO-39 package and is rated for operation between -55°C and +125°C.

Feature Summary

• Internally trimmed for high precision accuracy
• Fully self-contained design requiring minimal external components
• High reliability construction suitable for demanding environments

Applications

• Precision measurement systems
• Data acquisition circuits
• Instrumentation amplifiers

Procurement Notes

Verify the specific suffix (e.g., T, Y) and military grade designation (e.g., 883B) against the official datasheet to ensure correct performance specifications. Confirm RoHS compliance status and lead times directly with the manufacturer or authorized distributors, as availability may vary for specialized variants.

Selection Notes

Select this component when a stable 2.5 V reference is required with tight initial accuracy and low temperature drift. Ensure the application supply voltage falls within the 12 V to 36 V range. Consider the TO-39 package constraints for thermal management and physical integration in the final design.

Part Context

This part belongs to the SG1503 series of precision voltage references from Microchip Technology. It is designed for applications requiring high stability and accuracy over wide temperature ranges. The series includes various packages and accuracy grades to suit different industrial and military requirements.

Replacement Considerations

Check for direct pin-compatible alternatives such as the LM4040 or LT1021 if form factor allows. Verify that substitute parts meet the same 2.5 V output, 1% accuracy, and temperature coefficient specifications.