1N3350B

Single Zener Diodes Overview

The Microchip Technology 1N3350B is a high-power 50 W Zener diode designed for robust voltage regulation. It provides a nominal Zener voltage of 200 V with a standard tolerance of ±5%. The device operates within a junction and storage temperature range of -65°C to +175°C. Key electrical characteristics include a maximum dynamic impedance (ZZT) of 100 Ohms at the test current (IZT) of 65 mA, and a maximum reverse leakage current (IR) of 10 µA. The component utilizes a DO-5 (DO-203AB) package featuring a hexagonal stud mount.

Single Zener Diodes Feature Summary

• Hermetically sealed welded construction with internal solder bond design
• Inherently radiation hard per Microsemi MicroNote 050
• Non-sensitive to electrostatic discharge (ESD)
• Standard polarity connects anode to case; reverse polarity available via suffix

Single Zener Diodes Applications

• High power voltage regulation in industrial systems
• Voltage reference circuits requiring broad operating ranges
• Military and aerospace applications utilizing JAN/JANTX qualifications

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix to confirm tolerance and polarity requirements. The 'B' suffix indicates a ±5% voltage tolerance. An 'R' suffix denotes reversed polarity where the cathode connects to the case. Confirm thermal management needs as power derating applies above 75°C case temperature. Ensure mounting hardware matches the 11/16 inch hexagonal stud specifications.

Single Zener Diodes Selection Notes

Select this component for applications requiring high power dissipation up to 50 W. Consider the thermal resistance of 2.0°C/W maximum when designing heat sinking solutions. Verify that the required Zener voltage falls within the series range. Check if military screening levels such as JANTX or JANTXV are necessary for the target environment.

Single Zener Diodes Part Context

This part belongs to the 1N3305 through 1N3350B series of 50 Watt Zener diodes manufactured by Microchip Technology's Scottsdale Division. The series covers a wide voltage spectrum from 3.9 V to 200 V. These devices are JEDEC registered and offer hermetically sealed metal and glass packaging suitable for demanding environments.

Single Zener Diodes Replacement Considerations

Equivalent parts within the same series include 1N3349B and 1N4556B. Military qualified versions are available with JAN, JANTX, or JANTXV prefixes. Consult factory documentation for surface mount equivalents.