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Product Detailed Parameters
- Description：DIODE ZENER 43V 10W DO213AA
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：43 V
- Tolerance：±5%
- Power - Max：10 W
- Impedance (Max) (Zzt)：12 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 32.7 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 1N2993RB is a single Zener diode with a nominal voltage of 43V and a power dissipation rating of 10W. It features a tolerance of ±5% and operates within a junction temperature range of -65°C to +175°C. The reverse leakage current is specified as 10µA at 32.7V. This component utilizes a DO-203AA (DO-4) stud mount package, designed for high-reliability applications requiring robust thermal management and stable voltage regulation.
Feature Summary
- High-power 10W dissipation capability for demanding voltage regulation tasks
- Extended operating temperature range suitable for harsh environments
- Stud mount construction for efficient heat transfer and chassis integration
Applications
- High-reliability voltage reference circuits
- Industrial equipment power supply regulation
- Aerospace and defense electronic systems
Procurement Notes
Verify the specific manufacturer source, as components may be listed under Microchip, Microsemi, or Solid State Inc. Ensure the package type matches DO-203AA/DO-4 specifications. Confirm that the ±5% tolerance and 10W power rating align with your design requirements before procurement.
Selection Notes
Select this component when a 43V Zener reference with high power handling is required. The stud mount package necessitates appropriate thermal interface materials and mounting hardware. Consider the extended temperature range if the application involves significant thermal cycling or high ambient temperatures.
Part Context
This part belongs to the family of general-purpose Zener diodes designed for voltage regulation and protection. The 1N2993 series typically offers higher power ratings compared to standard signal diodes, making it suitable for power supplies and industrial control applications where stability and durability are critical.
Replacement Considerations
Check for equivalents from other manufacturers offering identical 43V, 10W, ±5% specifications in a DO-4 package. Verify pinout compatibility and thermal resistance characteristics to ensure seamless substitution without redesigning the mounting structure.
