JAN1N4617D-1

Single Zener Diodes Overview

The JAN1N4617D-1 is a 500 mW metallurgically bonded glass Zener diode from the 1N4614–1N4627 series, qualified to JANS level per MIL-PRF-19500/435. It features a hermetically sealed axial-lead DO-35 package with an internal metallurgical bond. The nominal Zener voltage is 2.4 V at a test current of 250 µA, with a maximum dynamic impedance of 1.0 Ω and a maximum reverse leakage current of 1.0 µA. It operates within a junction temperature range of -65 °C to +175 °C.

Single Zener Diodes Feature Summary

• Hermetically sealed construction using an internal metallurgical bond for high reliability.
• Qualified to JANS level standards for demanding applications.
• Inherently radiation hard as described in Microsemi MicroNote 050.
• Non-sensitive to electrostatic discharge (ESD) per MIL-STD-750 method 1020.

Single Zener Diodes Applications

• High-reliability voltage regulation circuits
• Radiation-hardened electronic systems
• Military and aerospace power supplies

Single Zener Diodes Procurement Notes

Verify that the component matches the specific JANS qualification level required by the design specification. Confirm the presence of the 'D' suffix indicating 1% voltage tolerance. Ensure the ordering documentation explicitly references MIL-PRF-19500/435 compliance. Validate that the manufacturer source is authorized for military-grade components.

Single Zener Diodes Selection Notes

Select this component when a 2.4 V reference with tight 1% tolerance is needed in a through-hole configuration. The JANS qualification ensures suitability for environments requiring extreme radiation hardness and long-term stability. Consider the 500 mW power dissipation limit and derating requirements above 50 °C lead temperature during thermal analysis.

Single Zener Diodes Part Context

This device belongs to the 1N4614–1N4627 series of 500 mZener diodes manufactured by Microchip Technology. The series offers voltages ranging from 1.8 V to 100 V with various tolerance options. The JAN1N4617D-1 specifically denotes the 2.4 V variant with 1% tolerance in the standard axial-lead glass package.

Single Zener Diodes Replacement Considerations

Substitutes must match the JANS qualification, 2.4 V nominal voltage, 1% tolerance, and DO-35 package. Verify equivalent radiation hardness and metallurgical bonding characteristics. Commercial equivalents lack the required MIL-PRF-19500/435 certification.