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1N4900
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Product Detailed Parameters
- Description：DIODE ZENER 12.8V 400MW DO7
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：12.8 V
- Tolerance：±5%
- Power - Max：400 mW
- Impedance (Max) (Zzt)：200 Ohms
- Current - Reverse Leakage @ Vr：-
- Operating Temperature：-25°C ~ 100°C
- Mounting Type：Through Hole
- Package / Case：DO-204AA, DO-7, Axial
- Voltage - Forward (Vf) (Max) @ If：-
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N4900 is a Zener diode with a nominal voltage of 12.8 V and a tolerance of ±5%. It features a maximum power dissipation of 400 mW and a maximum impedance of 200 Ohms. Designed for through-hole mounting in DO-7 (DO-204AA) axial packages, it operates within a temperature range of -55°C to +100°C.
Feature Summary
- Provides stable voltage regulation at a nominal 12.8 V level
- Constructed for reliable through-hole axial mounting applications
- Engineered to withstand operating temperatures from -55°C to +100°C
Applications
- Voltage reference circuits requiring stable DC levels
- Overvoltage protection for sensitive electronic components
- General-purpose voltage regulation in low-power systems
Procurement Notes
Verify the specific package type and tolerance requirements against your design specifications before procurement. Confirm that the 400 mW power rating and 200 Ohm impedance are suitable for your circuit's thermal and electrical conditions. Ensure compatibility with through-hole assembly processes and verify that the operating temperature range meets your environmental needs.
Selection Notes
Select this component when a precise 12.8 V Zener reference is required in a standard axial package. Consider the 400 mW power limit and ±5% voltage tolerance during circuit design. Evaluate if the through-hole form factor aligns with your PCB layout constraints and manufacturing capabilities compared to surface-mount alternatives.
Part Context
This device belongs to the 1N4900 series of Zener diodes manufactured by Microchip Technology. It serves as a fundamental discrete semiconductor component for voltage regulation tasks. The part utilizes a standard DO-7 axial leaded package, ensuring compatibility with traditional through-hole printing and assembly techniques used in various industrial and consumer electronics applications.
Replacement Considerations
Cross-reference with other 12.8 V Zener diodes in the DO-7 package. Verify equivalent power ratings and impedance values to ensure functional compatibility without redesigning the surrounding circuitry.
