2N757A

Single Bipolar Transistors Overview

The Microchip Technology 2N757A is a hermetically sealed silicon Zener diode designed for high-reliability applications. It features a nominal Zener voltage of 9.1 V with a 5% tolerance and operates within an extended temperature range from -65 °C to +175 °C. The device utilizes a DO-35 glass axial leaded package, providing robust performance in harsh environments. Key electrical characteristics include a maximum reverse leakage current of 1 µA and a Zener impedance of 6 Ω at the specified test current.

Single Bipolar Transistors Feature Summary

• Hermetically sealed construction ensures long-term reliability in extreme conditions
• Extended operating temperature range suitable for aerospace and military use
• Low leakage current maintains stability under varying thermal loads

Single Bipolar Transistors Applications

• Military avionics systems requiring radiation-hardened components
• Spacecraft power regulation circuits
• High-reliability industrial control equipment

Single Bipolar Transistors Procurement Notes

Verify that the specific procurement order explicitly requires the '2N' prefix, which denotes the hermetically sealed variant. Standard commercial equivalents typically lack this sealing and may not meet the required environmental specifications. Confirm compliance with relevant defense or aerospace standards before finalizing the purchase order.

Single Bipolar Transistors Selection Notes

Select the 2N757A when hermetic sealing is mandatory for environmental protection. This part is distinct from non-sealed commercial variants like the 1N757A. Ensure the design accommodates the through-hole mounting style and verify that the 9.1 V regulation point aligns with the circuit requirements.

Single Bipolar Transistors Part Context

This component belongs to the MIL-PRF-19500 qualified Zener diode family produced by Microchip Technology. It serves as a ruggedized alternative to standard commercial diodes, offering superior resistance to moisture and mechanical stress. The 2N series designation specifically indicates the hermetic glass encapsulation process used in its manufacturing.

Single Bipolar Transistors Replacement Considerations

Direct replacements must also be hermetically sealed. Verify if the JANTX1N757A-1 meets the exact hermetic sealing requirements, as suffixes can indicate variations in testing levels.