1N3156-1

Overview

The Microchip Technology 1N3156-1 is a temperature-compensated Zener diode designed for high-reliability applications. It features a nominal Zener voltage of 8.4V with a tolerance range of 8V to 8.8V. The device operates at a test current of 10mA and exhibits a dynamic impedance of 15 ohms. Constructed with silicon, it utilizes a DO-204AA (DO-7) glass axial leaded package. The component supports through-hole mounting and is rated for an operating temperature range from -65°C to +175°C.

Feature Summary

• Temperature compensated design ensures stable voltage regulation across wide thermal variations
• Hermetically sealed glass construction provides environmental protection and reliability
• High maximum operating temperature rating suitable for extreme environments

Applications

• Military aerospace circuits requiring radiation hardness and stability
• Space-grade power supply voltage references
• High-reliability industrial control systems

Procurement Notes

Verify the specific suffix designation when ordering, as variants such as JANTX or JANTXV indicate different quality levels and testing standards within the same electrical family. Confirm RoHS compliance status, as military-grade versions often contain lead. Ensure the procurement channel is authorized to handle factory special order items, as availability may vary based on production schedules.

Selection Notes

Select this component when precise voltage regulation is required under fluctuating thermal conditions. The temperature compensation feature distinguishes it from standard Zener diodes, making it ideal for critical analog reference applications. Verify that the DO-204AA package dimensions fit the target PCB layout and that the 500mW power dissipation rating aligns with the circuit's thermal management capabilities.

Part Context

This part belongs to the 1N3156 series of temperature-compensated Zener diodes manufactured by Microchip Technology. These components are engineered for rugged environments where standard semiconductor devices might fail due to thermal drift. The series is widely recognized in defense and aerospace sectors for its consistent performance and robust physical construction.

Replacement Considerations

Direct substitutes include other temperature-compensated Zener diodes with matching 8.4V nominal voltage and similar impedance characteristics. Cross-reference part numbers such as 1N3156A or equivalent MIL-spec variants from other qualified manufacturers, ensuring identical package type and thermal ratings.