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Product Detailed Parameters
- Description：DIODE ZENER 17V 50W DO5
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：17 V
- Tolerance：±10%
- Power - Max：50 W
- Impedance (Max) (Zzt)：1.8 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 13 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
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Overview
The Microchip Technology 1N3316RA 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 16.0 V at a test current of 780 mA. The device features a maximum dynamic impedance of 1.60 ohms and a typical temperature coefficient of +0.070 %/°C. It operates within a junction and storage temperature range of -65°C to +175°C, dissipating up to 50 watts at a case temperature below 75°C.
Feature Summary
- Hermetically sealed welded construction with internal solder bond for reliability
- Standard polarity configuration with anode connected to the case
- Inherently radiation hard design suitable for harsh environments
- ESD nonsensitive per MIL-STD-750 Method 1020
Applications
- High power voltage regulation in industrial systems
- Overvoltage protection circuits requiring robust thermal performance
- Military and aerospace applications utilizing radiation-hardened components
Procurement Notes
Verify the specific suffix requirements when ordering. The 'A' suffix indicates a standard tolerance of +/-10%. Confirm that the standard polarity (anode to case) matches your circuit design, as reverse polarity requires an 'R' suffix. Ensure mounting hardware supports the DO-5 package stud dimensions for proper heat sinking.
Selection Notes
Select this component for applications demanding high power dissipation capabilities up to 50 watts. The 16.0 V nominal rating suits specific reference or regulation needs. Consider the positive temperature coefficient for thermal stability analysis. Verify that the operating environment stays within the specified -65°C to +175°C junction temperature limits.
Part Context
This part belongs to the Microsemi Scottsdale Division 1N3305 through 1N3350B series of 50 Watt Zener diodes. These devices are designed for broad voltage regulation ranges from 3.9 V to 200 V. The series offers military qualifications including JAN, JANTX, and JANTXV levels for enhanced screening and reliability in critical systems.
Replacement Considerations
Equivalent parts include other 50 W Zener diodes with a 16 V nominal rating and compatible DO-5 packaging. Verify thermal resistance and maximum DC Zener current specifications match the original design requirements before substitution.
