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Product Detailed Parameters
- Description：DIODE ZENER 14V 50W DO5
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：14 V
- Tolerance：±5%
- Power - Max：50 W
- Impedance (Max) (Zzt)：1.2 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 11.4 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：-
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Overview
The Microchip Technology 1N3313B 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 14.0 V at a test current of 890 mA. The device features a maximum dynamic impedance of 1.20 ohms and supports a maximum DC Zener current of 3,000 mA. It operates within a junction temperature range of -65°C to +175°C and utilizes a DO-5 (DO-203AB) hexagonal stud package.
Feature Summary
- Hermetically sealed welded metal and glass construction for durability
- Internal solder bond design ensuring robust electrical connections
- Standard polarity configuration with anode connected to the case
- Inherently radiation hard characteristics suitable for harsh environments
Applications
- High power voltage regulation circuits
- Industrial equipment requiring stable reference voltages
- Military applications utilizing JAN or JANTX qualifications
Procurement Notes
Verify the specific revision status and manufacturing origin when sourcing this component. Confirm that the supplier provides documentation regarding the hermetic seal integrity and compliance with MIL-PRF-19500/358 if military-grade screening is required. Ensure proper mounting hardware is available for the hexagonal stud interface.
Selection Notes
Select this component for applications demanding high power dissipation capabilities up to 50 watts. Consider the thermal resistance of 2.0°C/W maximum when designing heat sinking solutions. Evaluate the need for reverse polarity by checking for the 'R' suffix requirement in the part number designation.
Part Context
This component belongs to the 1N3305 through 1N3350B series of 50 W Zener diodes manufactured by Microsemi, now part of Microchip Technology. These devices are designed for rugged environments and offer broad voltage selection ranging from 3.9 V to 200 V. The series is widely recognized for its reliability in aerospace and defense sectors.
Replacement Considerations
Consult the manufacturer for surface mount equivalents or direct replacements. Verify compatibility with existing thermal management systems due to the specific DO-5 package dimensions and mounting requirements.
