1N3037B-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N3037B-1/TR is a 1-watt glass case Zener diode qualified per MIL-PRF-19500/115. It features a hermetically sealed DO-41 package with tungsten slugs and metallurgically bonded construction. The nominal Zener voltage is 51V at a test current of 5mA, with a maximum dynamic impedance of 95 Ohms at IZT and 18 Ohms at IZK. Maximum reverse leakage current is 18µA at 38.8V. The device operates within a junction temperature range of -55°C to +175°C and has a thermal resistance of 80°C/W.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-41 package with tungsten slugs for high-reliability applications
• Qualified under JAN, JANTX, and JANTXV military standards per MIL-PRF-19500/115
• Metallurgically bonded double plug construction ensures structural integrity
• Inherently radiation hard as described in Microsemi MicroNote 050

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• High-reliability aerospace and defense electronics
• Radiation-hardened circuit protection

Single Zener Diodes Procurement Notes

Verify the specific suffix against the manufacturer's nomenclature guide to confirm RoHS compliance status and tolerance grade. Ensure the ordering code matches the required military qualification level (JAN, JANTX, or JANTXV). Confirm tape and reel availability directly with the factory if standard bulk packaging does not meet production requirements.

Single Zener Diodes Selection Notes

Select this component for designs requiring a 51V reference with strict reliability standards. The DO-41 glass package provides superior environmental sealing compared to plastic alternatives. Consider the 95 Ohm dynamic impedance when designing low-noise circuits. Verify that the 1W power dissipation rating aligns with the thermal management strategy for the target application environment.

Single Zener Diodes Part Context

This part belongs to the 1N3016B-1 through 1N3045B-1 series of 1-watt Zener diodes. The series covers a voltage range from 6.8V to 110V. All variants share the same hermetically sealed DO-41 glass package and metallurgical bonding process. The series is designed to meet rigorous military specifications for long-term stability and performance.

Single Zener Diodes Replacement Considerations

Functional equivalents include other 1N3037B-1 variants from different manufacturers meeting MIL-PRF-19500/115. Commercial versions without military qualification may differ in lot traceability and testing rigor. Verify pinout compatibility and thermal characteristics before substitution.

Single Zener Diodes FAQ

What is the maximum reverse leakage current for the 1N3037B-1?

The maximum reverse leakage current is 18µA measured at a reverse voltage of 38.8V.

Is the 1N3037B-1 radiation hard?

Yes, the device is inherently radiation hard as described in Microsemi MicroNote 050.