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Product Detailed Parameters
- Description：DIODE ZENER 25V 10W DO213AA
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：25 V
- Tolerance：±5%
- Power - Max：10 W
- Impedance (Max) (Zzt)：6 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 18.2 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 1N2987A is a single Zener diode manufactured by Microchip Technology, designed for high-accuracy voltage regulation. It features a nominal Zener voltage of 25 V with a tolerance of ±5%. The component has a power rating of 10 W and utilizes a DO-213AA (DO-4) chassis stud mount package. It is characterized by low dropout voltage operation and glass passivated junctions to ensure reliability in demanding electronic applications.
Feature Summary
- High-accuracy voltage regulation with low dropout voltage operation
- Glass passivated junction for enhanced durability
- Robust chassis stud mount construction for efficient thermal management
Applications
- Voltage reference circuits requiring stable 25 V regulation
- Power supply protection and clamping applications
- Industrial equipment utilizing stud-mounted components
Procurement Notes
Verify the manufacturer origin carefully, as the 1N2987A part number appears across multiple vendors including Microchip Technology, International Rectifier, and Digitron. Confirm the specific package variant and electrical tolerances match your design requirements before ordering. Ensure the supplier provides official datasheets to validate the component's authenticity and performance specifications.
Selection Notes
Select this component when a 10 W power dissipation capability and a 25 V Zener voltage are required. The DO-213AA package is suitable for applications needing direct chassis mounting for heat sinking. Consider the ±5% tolerance if precise voltage regulation without external trimming is necessary. Evaluate thermal resistance requirements based on the stud mount configuration.
Part Context
This device belongs to the family of standard Zener diodes used for voltage regulation and protection. Similar parts include the 1N2987B, which shares the same voltage and power ratings but may differ in specific manufacturing details or polarity options. The 1N2987 series is widely recognized for its robustness in industrial and commercial power electronics.
Replacement Considerations
The 1N2987B is a confirmed substitute within the same series, offering identical 25 V and 10 W specifications. Verify that the replacement maintains the DO-213AA package dimensions and mounting thread type to ensure mechanical compatibility.
