1N3038BUR-1

Single Zener Diodes Overview

The Microchip Technology 1N3038BUR-1 is a surface mount Zener diode with a nominal voltage of 56 V. It operates within a temperature range of -55 °C to +175 °C and dissipates up to 1 W of power. The device features a maximum reverse leakage current of 10 µA at the specified voltage and exhibits a dynamic impedance of 110 Ohms at a test current of 4.5 mA. Its temperature coefficient is 0.103 %/°C, and it utilizes a DO-213AB (MELF) package.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction with metallurgically bonded internal contacts for enhanced reliability.
• Leadless surface mount MELF package designed for high-density mounting applications.
• Qualified per MIL-PRF-19500/115 standards for JAN, JANTX, and JANTXV military levels.
• Inherently radiation hard and non-sensitive to electrostatic discharge.

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges.
• High-reliability electronic systems requiring hermetic sealing.
• High-density circuit board designs with low parasitic requirements.

Single Zener Diodes Procurement Notes

Verify the specific military qualification level required, as the part number suffix indicates tolerance but not necessarily the reliability grade. Confirm RoHS compliance status if applicable, noting that commercial versions may differ from qualified military grades. Ensure the ordering suffix matches the desired voltage tolerance and packaging configuration before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required for harsh environments. The DO-213AB package offers a leadless design suitable for automated assembly. Consider the thermal resistance and derating curves for power dissipation calculations above 125 °C. Verify that the 5% voltage tolerance meets the circuit precision requirements.

Single Zener Diodes Part Context

This device belongs to the 1N3016BUR-1 through 1N3045BUR-1 series of 1 Watt Surface Mount Zener Diodes. These components serve as surface mount equivalents to the JEDEC registered 1N3016B-1 through 1N3045B-1 series in the DO-13 package. The series provides a wide selection of voltages ranging from 6.8 V to 110 V in a compact form factor.

Single Zener Diodes Replacement Considerations

Direct replacements include other parts within the 1N3016BUR-1 to 1N3045BUR-1 series that share the same package and qualification levels. Cross-reference with the original JEDEC registered counterparts in the DO-13 package if through-hole mounting is acceptable.