1N3040BUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N3040BUR-1 is a 1 Watt surface mount Zener diode with a nominal voltage of 68 V. It utilizes a hermetically sealed glass MELF (DO-213AB) package and operates within a junction temperature range of -55°C to +175°C. The device features a maximum DC power dissipation of 1.0 W, a thermal resistance of 50 °C/W, and a forward voltage of 1.2 V at 200 mA.

Single Zener Diodes Feature Summary

• Hermetically sealed double plug glass construction for high reliability
• Metallurgically bonded internal contact design
• Leadless surface mount MELF package suitable for high-density applications
• Inherently radiation hard

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• High-reliability electronic systems requiring low parasitic characteristics
• Radiation-hardened circuit designs

Single Zener Diodes Procurement Notes

Verify the specific military qualification level required for your application, as this series is available in JAN, JANTX, and JANTXV grades per MIL-PRF-19500/115. Confirm that the DO-213AB MELF package dimensions align with your PCB layout constraints. Ensure the mounting surface Coefficient of Expansion matches the device's axial coefficient to prevent mechanical stress during operation.

Single Zener Diodes Selection Notes

Select this component when a robust, leadless surface mount solution is needed for voltages around 68 V. The metallurgically enhanced construction offers lower thermal resistance compared to standard packages. Consider the specific tolerance requirements, as the 'B' suffix indicates a 5% voltage tolerance. Verify compatibility with RoHS compliance if applicable, noting that RoHS versions are commercial grade only.

Single Zener Diodes Part Context

This part belongs to the 1N3016BUR-1 through 1N3045BUR-1 series of 1 Watt surface mount Zener diodes. These devices serve as leadless equivalents to the JEDEC registered 1N3016 through 1N3045 number series originally housed in DO-13 packages. The series covers a Zener voltage range from 6.8 volts to 110 volts.

Single Zener Diodes Replacement Considerations

Direct replacements include other parts within the 1N3016BUR-1 to 1N3045BUR-1 series or equivalent 1W Zener diodes in the DO-213AB (MELF) package. Ensure any substitute maintains the required hermetic seal and meets the same thermal and electrical specifications.