1N3041BUR-1

Overview

The Microchip Technology 1N3041BUR-1 is a surface mount Zener diode qualified per MIL-PRF-19500/115. It features a DO-213AB (MELF) package with hermetically sealed glass construction and metallurgically bonded terminals. The device provides a nominal Zener voltage of 82 V at a test current of 3.0 mA, with a maximum dynamic impedance of 200 Ohms at IZT and 0.25 Ohms at IZK. Maximum reverse leakage current is 10 µA at 62.2 V, and the temperature coefficient is 0.106 %/°C. It supports a DC power dissipation of 1.0 W and operates within a junction temperature range of -55°C to +175°C.

Feature Summary

• Hermetically sealed double plug glass construction for high-reliability environments
• Metallurgically enhanced internal contact design for lower thermal resistance
• Leadless surface mount MELF package suitable for high-density applications
• Inherently radiation hard and non-sensitive to ESD

Applications

• Voltage regulation over broad operating current and temperature ranges
• High-density circuit designs requiring low parasitic characteristics
• Military and aerospace systems requiring JAN, JANTX, or JANTXV qualifications

Procurement Notes

Verify the specific military qualification level required, as the part number suffix indicates a 5% tolerance variant. Confirm RoHS compliance status if applicable, noting that commercial versions may differ from qualified levels. Ensure the mounting surface Coefficient of Expansion matches the device's axial expansion rate of approximately +6 PPM/°C to prevent mechanical stress during operation.

Selection Notes

Select this component when a stable 82 V reference is needed in a compact surface mount form factor. The DO-213AB package offers a direct leadless replacement for the larger DO-13 axial package. Consider the 0.106 %/°C temperature coefficient for precision requirements. Verify that the 1.0 W power rating aligns with the thermal management capabilities of the target PCB layout.

Part Context

This device belongs to the 1N3016BUR-1 through 1N3045BUR-1 series of 1 Watt Surface Mount Zener Diodes. The series covers a Zener voltage range from 6.8 V to 110 V. These components serve as leadless surface mount equivalents to JEDEC registered 1N3016 through 1N3045 number series devices originally available in the DO-13 package.

Replacement Considerations

Direct leadless replacements are available for the JEDEC registered 1N3041B-1 in the DO-13 package. For equivalent screening to JAN, JANTX, or JANTXV levels, order device types with MQ, MX, or MV prefixes to the part number.