1N3043B-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N3043B-1/TR is a 1-watt glass case Zener diode with a nominal voltage of 91 V. It features a 5% voltage tolerance and operates within a temperature range of -55°C to +175°C. The device utilizes a DO-41 through-hole package and offers low reverse leakage current of 10 µA at 69.2 V. Electrical characteristics include a test current of 2.8 mA, maximum Zener impedance of 250 Ohms, and a temperature coefficient of 0.108 %/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-41 package for high-reliability applications
• Qualified per MIL-PRF-19500/115 standards
• Inherently radiation hard design
• Low reverse leakage currents

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• High-reliability military and aerospace circuits
• Radiation-hardened electronic systems

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm RoHS compliance status and exact qualification level (JAN, JANTX, or JANTXV). Ensure the ordering quantity aligns with tape and reel specifications provided by the manufacturer. Confirm lead material composition as tin/lead or matte/tin variants exist depending on the commercial grade designation.

Single Zener Diodes Selection Notes

Select this component when a 91 V reference with 5% tolerance is required in a hermetic through-hole package. Consider the 0.108 %/°C temperature coefficient for thermal stability requirements. Verify that the 1 W power dissipation rating meets the circuit's thermal management needs under derating conditions.

Single Zener Diodes Part Context

This part belongs to the 1N3016B-1 through 1N3045B-1 series of 1 Watt Glass Case Zener Diodes. The series provides JEDEC registered numbers ranging from 6.8 to 110 volts. It is designed for environments requiring robust performance and is available in multiple reliability levels including JAN, JANTX, and JANTXV.

Single Zener Diodes Replacement Considerations

Equivalent parts include JAN1N3043B-1 and JANTX1N3043B-1. Surface mount alternatives are available in the DO-213AB package, such as CDLL3043B.