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Product Detailed Parameters
- Description：DIODE ZENER 22V 10W DO213AA
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：22 V
- Tolerance：±5%
- Power - Max：10 W
- Impedance (Max) (Zzt)：5 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 16.7 V
- Operating Temperature：-65°C ~ 175°C
- Mounting Type：Chassis, Stud Mount
- Package / Case：DO-203AA, DO-4, Stud
- Voltage - Forward (Vf) (Max) @ If：1.5 V @ 2 A
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N2985RB is a silicon unidirectional voltage regulator diode designed for robust regulation applications. It operates within the 10 Watt Zener diode series, featuring internal solder bond construction and hermetically sealed welded packaging to ensure reliability in demanding environments. The component supports standard and reverse polarity configurations and is qualified under military standards including JAN, JANTX, and JANTXV grades per MIL-PRF-19500/124. It utilizes the DO-4 (DO-203AA) axial leaded package, suitable for through-hole mounting, and provides stable voltage regulation characteristics across its specified operating temperature range.
Feature Summary
- Hermetically sealed welded construction with internal solder bond design for enhanced durability
- Qualified under JAN, JANTX, and JANTXV military standards per MIL-PRF-19500/124
- Supports both standard and reverse polarity configurations for flexible circuit integration
Applications
- Military and aerospace electronic systems requiring high-reliability voltage regulation
- Industrial equipment protected against voltage transients and spikes
- Precision measurement instruments needing stable reference voltages
Procurement Notes
Verify the specific suffix RB against official Microchip documentation to confirm exact voltage tolerance and grade specifications. Ensure procurement channels provide traceability certificates for JAN or JANTXV qualifications if required by system standards. Confirm RoHS compliance status as historical military variants may differ from commercial equivalents. Validate package integrity upon receipt to maintain hermetic seal performance.
Selection Notes
Select this component when high-reliability voltage regulation is critical for mission-critical applications. The DO-4 package offers mechanical stability for vibration-prone environments. Consider the available qualification grades to match environmental testing requirements. Verify thermal management needs as the device dissipates power within its rated limits during operation.
Part Context
This part belongs to the 1N2970B through 1N3015B series of 10 Watt Zener diodes manufactured by Microchip Technology. These components are engineered for general-purpose and power switching applications where precise voltage control is necessary. The series is widely recognized in defense and industrial sectors for its consistent performance and long-term reliability under harsh conditions.
Replacement Considerations
Consult Microchip technical support for direct cross-reference alternatives. Verify that any substitute maintains the same DO-4 package dimensions and hermetic sealing capabilities. Ensure replacement parts meet the same MIL-PRF-19500/124 qualification levels to preserve system certification.
