JAN1N5537C-1

Single Zener Diodes Overview

The JAN1N5537C-1 is a 0.5 W axial-leaded glass Zener Voltage Regulator qualified per MIL-PRF-19500/437. It features a nominal Zener voltage of 17 V with a ±2% tolerance, measured at a test current of 1 mA. The device operates within a junction and storage temperature range of -65°C to +175°C. Key electrical parameters include a maximum dynamic impedance of 100 Ohms at the test current and a maximum reverse leakage current of 1 µA at 15.3 V. The package is a hermetically sealed DO-35 (DO-204AH) glass diode.

Single Zener Diodes Feature Summary

• Qualified for military reliability levels including JAN, JANTX, and JANTXV under MIL-PRF-19500/437 standards.
• Features an internal metallurgical bond construction option designated by the '-1' suffix.
• Provides guaranteed voltage regulation across a broad operating current and temperature range.
• Inherently radiation hard and nonsensitive to electrostatic discharge.

Single Zener Diodes Applications

• Voltage regulation in harsh environments requiring wide temperature stability.
• Reference voltage sources in precision electronic circuits.
• Overvoltage protection in aerospace and defense systems.

Single Zener Diodes Procurement Notes

Verify that the ordering suffix includes the '-1' designation to confirm the presence of the internal metallurgical bond required for JAN, JANTX, and JANTXV qualification levels. Ensure the 'C' suffix is present to guarantee the specified ±2% voltage tolerance. Confirm compliance with MIL-PRF-19500/437 requirements during procurement to match the intended reliability level.

Single Zener Diodes Selection Notes

Select this component when a 17 V reference with tight ±2% tolerance is required in a through-hole DO-35 package. The metallurgical bond construction ensures structural integrity suitable for high-reliability applications. Verify that the 0.5 W power dissipation rating and 175°C maximum junction temperature meet the thermal design constraints of the target system.

Single Zener Diodes Part Context

This part belongs to the 1N5518B thru 1N5546B-1 series of low voltage avalanche Zener diodes manufactured by Microchip Technology. The series covers a voltage selection from 3.3 to 33 volts. The JAN1N5537C-1 specifically represents the 17 V variant within this lineup, distinguished by its specific voltage tolerance and military-grade packaging options.

Single Zener Diodes Replacement Considerations

JAN1N5537C-1/TR