1N3038BUR-1/TR

Single Zener Diodes Overview

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

Single Zener Diodes Feature Summary

• Hermetically sealed glass MELF construction for high reliability
• Leadless surface mount design suitable for high-density applications
• Metallurgically bonded internal contacts to reduce thermal resistance
• Qualified per MIL-PRF-19500/115 for military standards

Single Zener Diodes Applications

• Voltage regulation over broad operating currents and temperatures
• High-reliability electronic systems requiring radiation hardness
• Surface mount circuits with low parasitic requirements

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required qualification level, as commercial versions differ from JAN, JANTX, or JANTXV military grades. Confirm RoHS compliance status if environmental regulations apply, noting that lead-free options are typically restricted to commercial grades. Ensure the procurement documentation references the correct JEDEC registration number for electrical validation.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required for high-reliability environments. The DO-213AB package offers a leadless footprint ideal for space-constrained designs. Consider the positive temperature coefficient above 5 V for thermal stability in regulated circuits. Verify that the mounting surface expansion coefficient matches the device's axial coefficient to prevent mechanical stress during thermal cycling.

Single Zener Diodes Part Context

This part belongs to the 1N3016B-1 through 1N3045B-1 series, which serves as the surface mount equivalent to the traditional JEDEC registered 1N3016 through 1N3045 number series. The BUR-1 designation specifically indicates the metallurgically bonded surface mount variant in the DO-213AB outline, maintaining performance parity with the axial-leaded counterparts while enabling automated assembly processes.

Single Zener Diodes Replacement Considerations

Direct replacements include other variants within the 1N3016BUR-1 to 1N3045BUR-1 series provided they share the same Zener voltage and tolerance. For through-hole equivalents, the 1N3016B-1 through 1N3045B-1 series in the DO-41 package offers identical electrical characteristics but requires different mounting considerations.