1N3051BUR-1

Single Zener Diodes Overview

The Microchip Technology 1N3051BUR-1 is a surface mount glass Zener diode in the DO-213AB (MELF) package. It provides a nominal Zener voltage of 200 V with a ±5% tolerance, tested at a current of 1.2 mA. The device supports a maximum Zener current of 8000 mA and maintains a steady-state power dissipation of 1.5 W at an end-cap temperature below 115°C. Operating temperatures range from -65°C to +175°C, with a thermal resistance of 40°C/W junction-to-end-cap.

Single Zener Diodes Feature Summary

• Hermetically sealed double-slug glass construction for high reliability
• Metallurgically enhanced internal contact design for lower thermal resistance
• Leadless surface mount package suitable for high-density mounting
• Inherently radiation hard

Single Zener Diodes Applications

• High-reliability applications requiring hermetic sealing
• High-density circuit board mounting
• Voltage regulation over broad operating currents and temperatures
• Radiation-hardened environments

Single Zener Diodes Procurement Notes

Verify the specific ordering suffixes required for your application. Prefixes such as MQ, MX, MV, or MSP indicate equivalent screening to JAN, JANTX, JANTXV, or JANS standards per MIL-PRF-19500/115. Ensure the 'e3' suffix is present if RoHS compliance is mandatory. Confirm tape and reel availability by checking for the 'TR' suffix if bulk packaging is not acceptable.

Single Zener Diodes Selection Notes

Select this component when a 200 V Zener reference is needed in a surface mount form factor. The DO-213AB package offers a direct footprint alternative to the axial DO-13 package while maintaining higher power ratings. Consider the tight voltage tolerances and low reverse leakage characteristics for precision regulation needs. Evaluate the thermal resistance specifications against your PCB copper area requirements.

Single Zener Diodes Part Context

This part belongs to the 1N3016BUR-1 through 1N3051BUR-1 series of surface mountable Zener diodes. These devices are designed as equivalents to the JEDEC registered 1N3016 through 1N3051 series but utilize the surface mount DO-213AB outline instead of the traditional DO-13 axial leaded package. The series covers a wide voltage range from 6.8 V to 200 V.

Single Zener Diodes Replacement Considerations

Equivalent axial leaded parts include the 1N3051B. Surface mount equivalents include the MLL3051B. For military-grade screening, consider prefixes like MX1N3051BUR-1.