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Product Detailed Parameters
- Description：DIODE ZENER 30V 50W TO204AD
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：30 V
- Tolerance：±5%
- Power - Max：50 W
- Impedance (Max) (Zzt)：3 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 22.8 V
- Operating Temperature：-65°C ~ 175°C
- Mounting Type：Through Hole
- Package / Case：TO-204AD
- Voltage - Forward (Vf) (Max) @ If：1.5 V @ 10 A
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N2823RB is a high-power Zener diode designed for voltage regulation and reference applications. It features a nominal Zener voltage of 30 V with a maximum power dissipation of 50 W. The device utilizes a TO-204AD (TO-3) package, suitable for through-hole mounting. Key electrical characteristics include a maximum Zener impedance of 3 Ohms and an operating temperature range extending up to 175 °C in specific military variants.
Feature Summary
- High power handling capability of 50 W for robust voltage regulation
- Stable 30 V nominal Zener voltage for precision references
- Low dynamic impedance of 3 Ohms for improved line regulation
- Extended thermal performance with operation up to 175 °C
Applications
- High-power voltage regulation circuits
- Precision voltage reference sources
- Overvoltage protection systems
- Industrial control power supplies
Procurement Notes
Verify the manufacturer source carefully, as this component has been produced by multiple entities including Microsemi and Microchip. Confirm the specific suffix (e.g., RB, +JAN) to ensure compliance with required environmental or military standards. Check datasheet revisions for any changes in mechanical dimensions or electrical tolerances before final integration.
Selection Notes
Select this component when high power dissipation is required in a single Zener device. The TO-3 package provides superior heat sinking compared to smaller packages. Ensure the circuit design accounts for the 50 W thermal limits and that the 30 V breakdown voltage aligns with the system's regulation requirements. Consider the 3 Ohm impedance for noise-sensitive applications.
Part Context
The 1N2823 series belongs to a family of general-purpose high-power Zener diodes. Originally associated with Microsemi Corporation, production rights and branding have transitioned to Microchip Technology. These devices are widely used in industrial and aerospace applications where reliable high-wattage voltage clamping is necessary.
Replacement Considerations
Cross-reference with other 30 V, 50 W Zener diodes in TO-3 packages. Verify pinout compatibility and thermal resistance values. Military-grade equivalents may require specific qualification documentation.
