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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 1N2988A is a 10 W Zener diode with a nominal voltage of 27 V and ±5% tolerance. It features a maximum impedance of 7 Ohms and operates within a temperature range of -65°C to 175°C. The device utilizes a DO-213AA (DO-4) stud-mount package, designed for high-power regulation applications requiring robust thermal performance and stable voltage control in demanding environments.
Feature Summary
- High power dissipation capability of 10 watts for robust voltage regulation
- Wide operating temperature range from -65°C to 175°C for extreme environment suitability
- Stud-mount construction in DO-213AA package for efficient heat sinking
Applications
- High-power voltage reference circuits
- Industrial power supply regulation
- Military and aerospace electronic systems
Procurement Notes
Verify the specific qualification level (Commercial, JAN, JANTX, or JANTXV) required for your application, as availability varies by grade. Confirm that the DO-213AA stud-mount package matches your thermal management design. Ensure compatibility with MIL-PRF-19500/124 standards if military-grade reliability is mandated for the system.
Selection Notes
Select this component when a 27 V Zener voltage with 10 W power handling is necessary. The DO-4 package allows direct mounting to heatsinks, making it suitable for high-current scenarios. Consider the ±5% tolerance and 7 Ohm impedance characteristics for precision requirements in voltage regulation tasks.
Part Context
This part belongs to the JEDEC registered 1N2970B through 1N3015B series of 10 W Zener diodes. These components are qualified per MIL-PRF-19500/124 and offer voltage regulation values between 3.9 and 200 V. The series includes commercial versions and higher reliability levels such as JAN, JANTX, and JANTXV.
Replacement Considerations
Compatible substitutes include other 10 W Zener diodes with 27 V nominal voltage and similar package constraints. Verify electrical parameters such as impedance and leakage current match the original specifications. Ensure the replacement supports the required temperature range and mounting style.
