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1N4678UR-1
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Product Detailed Parameters
- Description：DIODE ZENER 1.8V 500MW DO213AA
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：1.8 V
- Tolerance：±5%
- Power - Max：500 mW
- Impedance (Max) (Zzt)：-
- Current - Reverse Leakage @ Vr：7.5 µA @ 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 1N4678UR-1 is a surface-mount Zener diode designed for voltage regulation applications. It operates within a supply voltage range of 3.3 V to 4.2 V and supports data rates up to 1 Mb/s with an output power of 1.5 dBm. The component functions at a frequency of 2.44 GHz, featuring receiver sensitivity levels of -90 dBm and -92 dBm. It is rated for operation between -20°C and +70°C and utilizes a Tray package configuration.
Feature Summary
- Provides stable voltage regulation across broad operating current and temperature ranges
- Features internal metallurgical bonding similar to military requirements
- Offers flexible surface-mount installation options
Applications
- Voltage regulation in electronic circuits
- Temperature-compensated reference applications
- General-purpose voltage clamping
Procurement Notes
Verify the specific manufacturer source, as documentation references both Microchip Technology and Microsemi for this part number. Confirm RoHS compliance status, as sources indicate non-compliance. Ensure the ordering suffix matches the required package type and tolerance specifications before procurement.
Selection Notes
Select this component when a surface-mount Zener diode with internal metallurgical bonding is required. Consider the 5% voltage tolerance and 0.5 W power dissipation capabilities. Verify compatibility with the target operating temperature range and ensure the DO-213AA-2 package fits the design constraints.
Part Context
This device belongs to the 1N4678 series of 0.5-watt Zener voltage regulators. The series provides voltage selections from 1.8 to 43 volts with standard 5% tolerances. These components are available in various packages, including axial-leaded and surface-mount configurations, catering to diverse industrial and commercial applications.
Replacement Considerations
Consult official datasheets for direct substitutes within the 1N4678 series or equivalent surface-mount Zener diodes. Verify that replacement parts match the 0.5 W power rating and DO-213AA package outline.
