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1N4728AUR
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Product Detailed Parameters
- Description：DIODE ZENER 3.3V 1W DO213AB
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：3.3 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：10 Ohms
- Current - Reverse Leakage @ Vr：100 µA @ 1 V
- Operating Temperature：-65°C ~ 175°C
- Mounting Type：Surface Mount
- Package / Case：DO-213AB, MELF (Glass)
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 200 mA
- Grade：-
- Qualification：-
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Overview
The 1N4728AUR is a surface-mount Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 3.3 V with a tolerance of ±5%. The device is rated for a power dissipation of 1 W and utilizes the DO-213AB (MELF, LL41) package. Key electrical characteristics include a maximum reverse leakage current of 100 µA at 1 V and a knee impedance of 10 Ohms. The forward voltage is specified as 1.2 V at a test current of 200 mA. The component operates within a temperature range of -65°C to +175°C.
Feature Summary
- Provides stable voltage regulation and reference in electronic circuits
- Utilizes hermetically sealed glass construction for reliability
- Designed for surface-mount assembly via DO-213AB package
Applications
- Voltage regulation circuits
- Voltage protection applications
- Stable voltage reference generation
Procurement Notes
Verify the specific suffix against official Microchip documentation to confirm package type and tape/reel specifications. Ensure the procurement source provides valid RoHS compliance data. Cross-reference the manufacturer part number with authorized distributor listings to confirm authenticity and traceability before purchase.
Selection Notes
Select this component when a 3.3 V Zener regulator is required in a surface-mount configuration. The DO-213AB package suits automated assembly processes. Consider the 1 W power rating and ±5% voltage tolerance for circuit design constraints. Verify thermal management requirements for the operating environment.
Part Context
This component belongs to the standard Zener diode family produced by Microchip Technology. It serves as a voltage regulator and protector in semiconductor applications. The device is distinct from through-hole variants like the 1N4728A, offering a compact form factor suitable for modern printed circuit board designs requiring surface-mount technology.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Microchip Technology or authorized distributors for verified cross-reference information.
