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Product Detailed Parameters
- Description：DIODE ZENER 27V 10W DO213AA
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：27 V
- Tolerance：±5%
- Power - Max：10 W
- Impedance (Max) (Zzt)：7 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 20.6 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 1N2988RB is a stud-mount Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 27V and supports a maximum current of 95mA. The device exhibits a reverse impedance of 7 Ohms, ensuring stable regulation characteristics under specified operating conditions. Constructed with a robust stud-mount package, it facilitates efficient thermal dissipation and secure mechanical mounting on heat sinks or chassis surfaces. This component is suitable for environments requiring reliable voltage reference or protection functions.
Feature Summary
- Provides precise voltage regulation at a nominal 27V level
- Utilizes a stud-mount configuration for enhanced thermal management
- Maintains low reverse impedance for stable performance
Applications
- Voltage regulation circuits
- Overvoltage protection systems
- Industrial power supply references
Procurement Notes
Verify the specific suffix RB against official Microchip documentation to confirm exact electrical tolerances and packaging specifications. Ensure compatibility with existing thermal interface materials and mounting hardware. Confirm RoHS compliance status if required by project standards. Validate that the stud-mount footprint matches the design layout before finalizing procurement orders.
Selection Notes
Select this component when a 27V regulated output is required in high-power or industrial settings. The stud-mount style is preferred over leaded packages for superior heat dissipation. Consider the 95mA current limit and 7 Ohm impedance when designing the surrounding circuitry to ensure proper operation within safe limits.
Part Context
This part belongs to the standard Zener diode category from Microchip Technology. It is distinct from transient voltage suppressors or general-purpose rectifiers due to its specific breakdown voltage characteristics. The stud-mount variant offers mechanical advantages for high-reliability applications compared to smaller surface-mount or axial-lead alternatives.
Replacement Considerations
Consult official cross-reference guides for compatible equivalents. Verify that any substitute maintains the 27V Zener voltage, 95mA current rating, and stud-mount form factor to ensure functional interchangeability.
