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1N4683UR-1
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Product Detailed Parameters
- Description：DIODE ZENER 3V 500MW DO213AA
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：3 V
- Tolerance：±5%
- Power - Max：500 mW
- Impedance (Max) (Zzt)：-
- Current - Reverse Leakage @ Vr：800 nA @ 1 V
- Operating Temperature：-65°C ~ 175°C
- Mounting Type：Surface Mount
- Package / Case：DO-213AA
- Voltage - Forward (Vf) (Max) @ If：1.5 V @ 100 mA
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N4683UR-1 is a Zener diode featuring a nominal voltage of 3V with a 5% tolerance. It operates within the 1N4678UR-1 through 1N4717UR-1 series, offering a power dissipation rating of 0.5W. The device utilizes a DO-213AA (MELF-2) glass surface mount package and is hermetically sealed. It supports a low test current of 50 µA for regulation.
Feature Summary
- Hermetically sealed glass MELF-2 surface mount construction
- Low test current operation at 50 µA for precise regulation
- Surface mount equivalent to JEDEC registered axial packages
Applications
- Voltage regulation in MIL-PRF-19500 compliant circuits
- Reference voltage generation in precision analog systems
- Overvoltage protection in space-constrained PCB designs
Procurement Notes
Verify that the specific part number suffix matches the required qualification level, as up-screening options exist relative to MIL-PRF-19500. Confirm RoHS compliance status if commercial grade suffices, noting that military-grade versions may differ. Ensure the supplier provides documentation confirming the hermetic seal integrity and glass MELF-2 package authenticity before finalizing acquisition.
Selection Notes
Select this component when a hermetically sealed surface mount Zener diode is required for high-reliability applications. The DO-213AA package serves as the direct surface mount replacement for the traditional DO-35 axial leaded 1N4683. Consider the 50 µA test current requirement for bias circuit design, which differs from standard higher-current regulators.
Part Context
This component belongs to the 1N4678UR-1 through 1N4717UR-1 series of 0.5 watt glass surface mount Zener diodes manufactured by Microchip Technology. The series covers voltages from 1.8 to 43 volts. The 1N4683UR-1 specifically corresponds to the 3V variant within this standardized lineup of hermetically sealed devices.
Replacement Considerations
The 1N4683UR-1 is the surface mount equivalent of the 1N4683 axial diode. Verify pinout compatibility and thermal characteristics when substituting into existing layouts designed for DO-35 packages.
