1N3346A

$36.38

Description：DIODE ZENER 150V 50W DO5
Series：-
Mfr：Microchip Technology
Package：Bulk

SKU:e382757b06e7 Category: Single Zener Diodes Brand: Microchip Technology

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Product introduction

1N3346A is listed in the Single Zener Diodes range at ChipApex. The manufacturer field lists Microchip Technology. Its product description is DIODE ZENER 150V 50W DO5. Review the specifications below when checking this part for your BOM.

Single Zener Diodes specifications for 1N3346A

Description：DIODE ZENER 150V 50W DO5
Series：-
Mfr：Microchip Technology
Package：Bulk
Voltage - Zener (Nom) (Vz)：150 V
Tolerance：±10%
Power - Max：50 W
Impedance (Max) (Zzt)：75 Ohms
Current - Reverse Leakage @ Vr：10 µA @ 114 V
Operating Temperature：-65°C ~ 175°C
Mounting Type：Chassis, Stud Mount
Package / Case：DO-203AB, DO-5, Stud
Voltage - Forward (Vf) (Max) @ If：1.5 V @ 10 A
Grade：-
Qualification：-

Single Zener Diodes datasheet and documents for 1N3346A

1N3346A

Single Zener Diodes Overview

The Microchip Technology 1N3346A is a high-power 50 W Zener diode from the JEDEC registered 1N3305 through 1N3350B series. It provides voltage regulation with a nominal Zener voltage of 150 V and a test current (IZT) of 85 mA. The device features a maximum dynamic impedance (ZZT) of 75 Ohms at IZT and 400 Ohms at IZK = 5 mA. Standard tolerance for the 'A' suffix is +/- 10%. It operates within a junction temperature range of -65°C to +175°C, dissipating up to 50 W at a case temperature below 75°C.

Single Zener Diodes Feature Summary

Hermetically sealed welded metal and glass construction in an industry standard DO-5 package.
Internal solder bond design providing inherent radiation hardness.
Low thermal resistance of 2.0°C/W maximum junction to hexagonal base.
Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020.

Single Zener Diodes Applications

High power voltage regulation
Overvoltage protection circuits
Reference voltage generation

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm polarity and tolerance requirements. The 'A' suffix indicates a +/- 10% voltage tolerance. Confirm whether reverse polarity (cathode to case) is required, which necessitates an 'R' suffix in the part number. Ensure mounting hardware specifications align with the 11/16 inch hexagonal stud and 1/4-28 threads.

Single Zener Diodes Selection Notes

Select this component for applications requiring robust 50 W power dissipation capabilities. The DO-5 package allows for direct mounting to heat sinks via the hexagonal stud. Consider the thermal derating curve when designing for case temperatures exceeding 75°C. Verify that the 150 V breakdown voltage matches the circuit requirements and that the 85 mA test current is compatible with the driving source.

Single Zener Diodes Part Context

This component belongs to the Microsemi Scottsdale Division 1N3305 through 1N3350B series of 50 Watt Zener Diodes. These devices are designed for high-power applications where reliability and radiation hardness are critical. The series covers a broad voltage range from 3.9 V to 200 V, utilizing a standardized DO-5 hermetic package suitable for demanding industrial and military environments.