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Product Detailed Parameters
- Description：DIODE ZENER 9.1V 50W TO204AD
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：9.1 V
- Tolerance：±10%
- Power - Max：50 W
- Impedance (Max) (Zzt)：0.5 Ohms
- Current - Reverse Leakage @ Vr：25 µA @ 6.1 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 1N2807A is a silicon Zener diode manufactured by Microchip Technology, designed for voltage regulation applications. It features a nominal Zener voltage of 9.1V with a maximum current rating of 1370mA and an impedance of 0.5 Ohms. The component utilizes a Through-Hole Technology (THT) package configuration suitable for general-purpose circuit protection and reference voltage generation.
Feature Summary
- Provides stable voltage regulation within a broad range of values from 3.9 V to 200 V
- Capable of operation up to 50 W with adequate mounting and heat sinking due to low thermal resistance
- Available in military qualified levels including JAN, JANTX, and JANTXV
Applications
- Voltage regulation circuits requiring high power handling
- Circuit protection systems utilizing low thermal resistance characteristics
- Military and aerospace electronic assemblies requiring qualified components
Procurement Notes
Verify the specific manufacturing source, as both Microchip Technology and Microsemi produce this series. Confirm compliance requirements such as RoHS status, which may vary between commercial and military grades. Ensure the selected variant matches the required qualification level, such as JAN or JANTX, for the intended application environment.
Selection Notes
Select based on the required Zener voltage tolerance and power dissipation capabilities. Consider the package type, typically TO-204AD (TO-3), for flange mount installation. Evaluate thermal management needs, as the device supports up to 50 W operation when properly heat sunk. Verify polarity options if reverse polarity configurations are necessary for the design.
Part Context
This component belongs to the JEDEC registered 1N2804B through 1N2846B series of high-power Zener diodes. The series offers a wide voltage range and is often available in reverse polarity variants. Military qualifications ensure reliability for demanding environments, making it suitable for critical infrastructure and defense electronics.
Replacement Considerations
Compatible substitutes include other parts within the 1N2804B–1N2846B series that match the 9.1V specification. Variants such as JANTX1N2807 offer hermetic sealing and military qualification. Ensure any replacement maintains the same power rating and package form factor for direct integration.
