1N3177

Single Diodes Overview

The Microchip Technology 1N3177 is a temperature-compensated Zener reference diode designed for precision voltage regulation applications. It features metallurgically bonded, double-plug construction to ensure stability and reliability under varying thermal conditions. The device operates within an extended junction temperature range of -65°C to +175°C, making it suitable for harsh environments. With a nominal Zener voltage of 8.4V and low reverse leakage current, it provides accurate reference performance. The component is available in leadless surface-mount packages compliant with MIL-PRF-19500/158 standards.

Single Diodes Feature Summary

• Temperature-compensated Zener reference design for stable voltage regulation
• Metallurgically bonded, double-plug construction for enhanced durability
• Extended operating temperature range suitable for extreme environments
• Leadless package format compatible with surface-mount assembly

Single Diodes Applications

• Precision voltage reference circuits requiring thermal stability
• Harsh environment electronic systems demanding high reliability
• Military and aerospace instrumentation power supplies

Single Diodes Procurement Notes

Verify the specific suffix (e.g., UR-1) and qualification level (JAN, JANTX, JANTXV, or JANS) required for your application, as these determine compliance with MIL-PRF-19500/158. Confirm package type and moisture sensitivity handling procedures upon receipt. Ensure the supplier provides traceability documentation consistent with military-grade procurement standards.

Single Diodes Selection Notes

Select this component when a stable 8.4V reference is needed across wide temperature variations. Consider the leadless package constraints for PCB layout and soldering profiles. Evaluate the power derating requirements above +50°C to ensure safe operation within the 500mW dissipation limit. Verify that the reverse leakage characteristics meet the circuit's input impedance requirements.

Single Diodes Part Context

The 1N3177 belongs to a family of temperature-compensated Zener diodes manufactured by Microchip Technology. It shares design similarities with related parts like the CDLL3157 series but is distinguished by its specific compensation characteristics and ruggedized construction. This component serves as a critical reference element in analog signal processing and power management subsystems where standard Zener diodes lack sufficient thermal stability.

Single Diodes Replacement Considerations

Direct substitutes include other MIL-PRF-19500/158 qualified Zener references with matching 8.4V nominal voltage and temperature compensation. Verify pinout compatibility and package dimensions before substitution. Ensure the alternative meets the same maximum ratings for reverse leakage and power dissipation.