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Product Detailed Parameters
- Description：DIODE ZENER 82V 10W DO213AA
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：82 V
- Tolerance：±5%
- Power - Max：10 W
- Impedance (Max) (Zzt)：25 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 62.2 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 1N3003B is a silicon Zener diode manufactured by Microchip Technology, designed for voltage regulation applications. It features an 82V nominal Zener voltage with a ±5% tolerance and a maximum dynamic impedance of 25 Ohms. The device is rated for 10W power dissipation and operates at a test current of 30mA. It utilizes a DO-213AA (TO-3) stud-mount package, supporting a maximum operating temperature of 175°C.
Feature Summary
- High-power voltage regulation capability with 10W dissipation rating
- Precision voltage reference with ±5% tolerance
- Robust thermal performance suitable for high-temperature environments up to 175°C
Applications
- High-power voltage regulator circuits
- Overvoltage protection systems
- Reference voltage sources in industrial equipment
Procurement Notes
Verify the manufacturer origin, as the 1N3003B designation is used by multiple vendors including Semicon Components Inc and Naina Semiconductor. Confirm the specific tolerance grade, as datasheets indicate variations between 5% and 20%. Ensure the package type matches the required mounting configuration, typically DO-213AA or TO-3, before procurement.
Selection Notes
Select this component when a stable 82V reference is required in high-power scenarios. The stud-mount design facilitates direct heat sinking to chassis or heatsinks. Consider the 25 Ohm dynamic impedance for regulation accuracy requirements. Verify that the 30mA test current aligns with the circuit's biasing constraints.
Part Context
This part belongs to the family of 10-watt Zener diodes, historically associated with Microsemi Corporation before its acquisition by Microchip Technology. These devices are standard replacements for older military and industrial specifications requiring robust voltage regulation in power supplies and control systems.
Replacement Considerations
The 1N3003BR is listed as an equivalent part number. Verify pinout compatibility and thermal resistance characteristics when substituting with parts from other manufacturers such as Semicon Components Inc.
