SG1503T-DESC

Overview

The SG1503T-DESC is a high-reliability, three-terminal voltage reference component manufactured by Microchip Technology. It provides a stable 2.5V output and is housed in an 8-pin ceramic DIP package. Designed for demanding environments, this device features precision trimming to ensure accuracy under varying conditions. The part is classified as a military-grade or space-qualified component, suitable for applications requiring long-term stability and robust performance against environmental stressors.

Feature Summary

• Provides a precise 2.5V reference output with tight tolerance specifications
• Constructed in a hermetically sealed ceramic DIP package for environmental protection
• Engineered for high reliability and radiation hardness in critical systems

Applications

• Military avionics and defense electronics
• Spacecraft instrumentation and satellite systems
• High-reliability industrial measurement equipment

Procurement Notes

Verify the specific revision level and lot traceability requirements before ordering. Confirm that the ceramic package variant matches your PCB footprint and thermal management needs. Ensure compliance with relevant military or aerospace standards required for your final assembly. Contact the manufacturer directly for availability as these are often special order items.

Selection Notes

Select this component when standard commercial voltage references fail to meet reliability or environmental constraints. Consider the ceramic package size and pin configuration during layout. Evaluate the need for external filtering based on the specific noise sensitivity of your application circuit. Verify power supply rejection ratio requirements against available data sheets.

Part Context

This part belongs to Microchip's portfolio of high-reliability analog components, often associated with their former Microsemi or Linear Technology acquisitions. These devices are typically designated for use in sectors where failure is not an option, such as aerospace and defense. The 'DESC' suffix indicates a specific packaging or testing configuration distinct from standard commercial variants.

Replacement Considerations

Direct replacements must match the 2.5V output, 8-pin ceramic DIP package, and high-reliability qualification. Verify pinout compatibility and thermal characteristics. Cross-reference with other military-grade voltage references from manufacturers like Analog Devices or Texas Instruments if Microchip stock is unavailable.