1N4370A-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N4370A-1/TR is a silicon Zener diode with a nominal voltage of 2.4 V and a maximum dynamic impedance of 30 Ohms at a test current of 155 mA. It operates within a temperature range of -65°C to +175°C, dissipating up to 0.5 W at a lead temperature of 50°C. The component utilizes a hermetically sealed axial-lead glass DO-35 package and features an internal metallurgical bond.

Single Zener Diodes Feature Summary

• Hermetically sealed axial-lead glass DO-35 package with internal metallurgical bond
• Qualified per MIL-PRF-19500/127 for JAN, JANTX, and JANTXV reliability levels
• Non-sensitive to electrostatic discharge per MIL-STD-750 method 1020
• Inherently radiation hard

Single Zener Diodes Applications

• Voltage regulation over broad temperature ranges
• Military and aerospace electronic circuits
• Radiation-hardened system designs

Single Zener Diodes Procurement Notes

Verify the specific military qualification level (JAN, JANTX, or JANTXV) required for the application. Confirm that the tape and reel packaging aligns with automated assembly equipment specifications. Ensure compliance with environmental directives if RoHS exemption is necessary for defense contracts.

Single Zener Diodes Selection Notes

Select this component for applications requiring low-voltage precision regulation in harsh environments. The 2.4 V output suits reference circuits where negative temperature coefficients are acceptable. Evaluate thermal derating curves to ensure power dissipation limits are not exceeded under peak operating conditions.

Single Zener Diodes Part Context

This device belongs to the 1N4370 series of 500 mW Zener diodes manufactured by Microchip Technology. The series provides regulated voltages from 2.4 to 12 volts with standard 5% tolerance. These components are designed for high-reliability applications requiring robust performance across extreme temperature variations.

Single Zener Diodes Replacement Considerations

Equivalent parts include 1N4370AUR-1 for surface mount requirements. Verify pinout compatibility and electrical characteristics when substituting with other manufacturers' axial-lead Zener diodes.