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1N4771
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Product Detailed Parameters
- Description：DIODE ZENER 9.1V 500MW DO204AH
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：9.1 V
- Tolerance：±5%
- Power - Max：500 mW
- Impedance (Max) (Zzt)：200 Ohms
- Current - Reverse Leakage @ Vr：-
- Operating Temperature：0°C ~ 75°C
- Mounting Type：Through Hole
- Package / Case：DO-204AH, DO-35, Axial
- Voltage - Forward (Vf) (Max) @ If：-
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N4771 is a temperature-compensated Zener reference diode with a nominal voltage of 9.1 V and a maximum power dissipation of 500 mW. It features a maximum impedance of 200 Ohms and operates within a temperature range of 0°C to 75°C. The component utilizes an axial DO-204AH (DO-35) through-hole package, providing stable voltage regulation for precision applications requiring low temperature coefficient characteristics.
Feature Summary
- Temperature compensated design for stable voltage reference
- Through-hole axial mounting configuration
- Single Zener diode construction
Applications
- Precision voltage reference circuits
- Temperature compensated regulator designs
- Calibration equipment references
Procurement Notes
Verify the specific manufacturer source, as this part number has been produced by multiple entities including Microsemi and Motorola. Confirm RoHS compliance status and suffix variations such as /TR or HR if required. Ensure the package type matches the DO-204AH specification and validate the operating temperature range against application requirements before procurement.
Selection Notes
Select this component when a stable 9.1 V reference with low temperature drift is required in a through-hole assembly. Consider the 500 mW power rating and 200 Ohm impedance limits during circuit design. Verify compatibility with existing board layouts utilizing the DO-35 axial package form factor.
Part Context
This device belongs to the 1N4765A through 1N4774A series of temperature-compensated Zener reference diodes. These components are designed to provide superior stability compared to standard Zener diodes, particularly in the 5.6 V to 9.1 V range where tunneling effects dominate. The series is widely used in instrumentation and measurement systems.
Replacement Considerations
Direct substitutes include the 1N4771A variant, which offers an extended temperature range of -55°C to 100°C. Other equivalents may exist from different manufacturers under the same JEDEC designation, provided electrical parameters match.
