1N3042BUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N3042BUR-1/TR is a surface mount Zener diode in the DO-213AB (MELF) package. It provides an 82 V nominal Zener voltage with a 5% tolerance at a test current of 3.0 mA. The device features a maximum dynamic impedance of 3000 Ohms and a maximum reverse leakage current of 10 µA. It supports a DC power dissipation of 1.0 W, operating within a junction temperature range of -55 °C to +175 °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

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• High-reliability electronic systems requiring radiation hardness
• Low parasitic requirement circuit designs

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required RoHS compliance status and packaging format. Confirm military qualification levels if applicable, as commercial versions differ from JAN/JANTX variants. Ensure the tape and reel specifications align with automated assembly equipment requirements before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a leadless surface mount equivalent to the JEDEC registered 1N3042B-1 is required. Consider the 1W power rating and wide temperature capability for demanding environments. Evaluate the high dynamic impedance characteristics against circuit sensitivity requirements to ensure stable regulation performance under varying load conditions.

Single Zener Diodes Part Context

This part belongs to the 1N3016BUR-1 through 1N3045BUR-1 series of 1 Watt Surface Mount Zener Diodes. The series offers a Zener voltage range from 6.8 volts to 110 volts. These devices are qualified per MIL-PRF-19500/115 and are available in JAN, JANTX, and JANTXV military qualifications alongside commercial grades.

Single Zener Diodes Replacement Considerations

The 1N3042BUR-1 serves as a surface mount replacement for the axial-leaded 1N3042B-1. Verify pinout polarity and mechanical footprint compatibility during substitution.