1N3024B-1E3

Overview

The Microchip Technology 1N3024B-1E3 is a 1-watt glass case Zener diode qualified per MIL-PRF-19500/115. It features a hermetically sealed DO-41 package with tungsten slugs and metallurgically bonded terminals. The nominal Zener voltage is 15 V at a test current of 17 mA, with a maximum dynamic impedance of 14 Ohms at IZT and 0.25 Ohms at IZK. Maximum reverse leakage current is 10 µA at 11.4 V. The device operates within a junction temperature range of -55°C to +175°C.

Feature Summary

• Hermetically sealed voidless hard glass package with tungsten slugs for high-reliability applications.
• Metallurgically bonded construction with double plug design.
• Inherently radiation hard as described in Microsemi documentation.

Applications

• Voltage regulation over broad operating current and temperature ranges.
• High-reliability military and aerospace circuits requiring JAN, JANTX, or JANTXV qualifications.

Procurement Notes

Verify the specific reliability level (JAN, JANTX, or JANTXV) required for the application, as the base part number covers multiple qualification tiers. Confirm RoHS compliance status, noting that the e3 suffix indicates RoHS compliance available on commercial grade only. Ensure the ordering nomenclature matches the desired tolerance and environmental specifications before procurement.

Selection Notes

Select this component for designs requiring a 15 V reference with tight tolerance options. Consider the thermal resistance of 80 °C/W and power derating curves when designing for high ambient temperatures. Verify that the 1 W power dissipation rating aligns with the circuit's peak load requirements and mounting conditions on FR4 PCBs.

Part Context

This device belongs to the 1N3016B-1 through 1N3045B-1 series of 1 Watt Glass Case Zener Diodes. The series provides JEDEC registered numbers ranging from 6.8 to 110 volts. It is designed for applications demanding robust performance in harsh environments, offering low reverse leakage currents and non-sensitive ESD characteristics.

Replacement Considerations

Compatible substitutes include other 1N3024 variants such as 1N3024BUR-1 for surface mount needs, provided the package change is acceptable. Direct replacements must match the 15 V Zener voltage, 1 W power rating, and DO-41 package dimensions to ensure mechanical and electrical compatibility.