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Product Detailed Parameters
- Description：DIODE ZENER 105V 50W TO204AD
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：105 V
- Tolerance：±5%
- Power - Max：50 W
- Impedance (Max) (Zzt)：25 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 79.8 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 1N2839B is a high-power Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 75 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 50 W and operates within a temperature range of -65°C to +175°C. Packaged in the TO-204AD (TO-3) through-hole format, it exhibits a maximum Zener impedance of 9 Ohms at the test current. Reverse leakage current is specified as 10 µA at 56 V, while forward voltage drop is 1.5 V at 10 A.
Feature Summary
- Provides stable voltage regulation across a broad range of values from 3.9 V to 200 V.
- Capable of operating up to 50 W with adequate mounting and heat sinking.
- Qualified per MIL-PRF-19500/114 standards for JAN, JANTX, and JANTXV levels.
Applications
- High-power voltage regulation circuits
- Industrial equipment requiring robust thermal performance
- Military and aerospace electronic systems
Procurement Notes
Verify the specific qualification level required, such as JAN, JANTX, or JANTXV, as these are available on commercial versions. Confirm that the application provides adequate mounting and heat sinking to support the 50 W power dissipation rating. Ensure the package type matches the TO-204AD specification for proper installation.
Selection Notes
Select this component when high power handling and wide temperature operation are necessary. The 75 V nominal voltage suits specific regulation needs within the broader series range. Consider the through-hole TO-3 package for mechanical stability and thermal management in demanding environments compared to smaller surface-mount alternatives.
Part Context
This part belongs to the 1N2804B through 1N2846B series of 50 Watt Zener diodes manufactured by Microchip Technology. These devices are JEDEC registered and offer a broad range of voltage values. The series is designed for reliability in harsh conditions, supported by military qualification standards.
Replacement Considerations
Compatible substitutes include other parts within the 1N28xxB series, such as the 1N2835B, provided they meet the same 50 W power rating and TO-204AD package requirements. Verify that any replacement maintains the required Zener voltage and tolerance specifications.
