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Product Detailed Parameters
- Description：DIODE ZENER 36V 50W DO5
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：36 V
- Tolerance：±10%
- Power - Max：50 W
- Impedance (Max) (Zzt)：3.5 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 27.4 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 1N3326A 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 36 V at a test current of 350 mA. The device features a maximum dynamic impedance of 3.5 ohms and a maximum reverse current of 10 µA at its rated voltage. Standard tolerance for the 'A' suffix is +/-10%. It operates within a junction temperature range of -65°C to +175°C and utilizes a DO-5 (DO-203AB) package.
Feature Summary
- Hermetically sealed welded construction with internal solder bond
- Standard polarity configuration with anode connected to case
- Radiation hard design inherent to the component structure
- ESD nonsensitive per MIL-STD-750 Method 1020
Applications
- Voltage regulation in power supplies
- High power protection circuits
- Military and aerospace electronic systems
Procurement Notes
Verify the specific ordering suffix against the datasheet requirements. The 'A' suffix denotes a standard +/-10% voltage tolerance, while an 'R' suffix indicates reversed polarity (cathode to case). Confirm that the required thermal management supports the 50 W dissipation rating at the intended operating stud temperature. Ensure compatibility with the DO-5 hexagonal stud mounting style.
Selection Notes
Select this component when a robust 50 W Zener diode is required for high-voltage regulation applications. The 1N3326A offers a 36 V nominal breakdown suitable for mid-range voltage references. Consider the thermal resistance characteristics and the necessity for adequate heat sinking to maintain junction temperatures within the specified limits during continuous operation.
Part Context
This part belongs to the Microsemi Scottsdale Division 1N3305 through 1N3350B series of 50 Watt Zener Diodes. These devices are designed for demanding environments and are also available in JAN, JANTX, and JANTXV military qualifications. The series covers a broad voltage range from 3.9 V to 200 V, providing versatile options for high-power regulation needs.
Replacement Considerations
Equivalent parts include other 50 W Zener diodes with a 36 V nominal voltage and similar DO-5 packaging. Verify that any substitute matches the thermal resistance, power derating curves, and hermetic sealing requirements of the original specification.
