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1N4733UR-1
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Product Detailed Parameters
- Description：DIODE ZENER 5.1V 1W DO213AB
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：5.1 V
- Tolerance：±10%
- Power - Max：1 W
- Impedance (Max) (Zzt)：7 Ohms
- Current - Reverse Leakage @ Vr：10 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 Microchip Technology 1N4733UR-1 is a single silicon Zener diode designed for voltage regulation and protection applications. It features a nominal Zener voltage of 5.1 V with a power dissipation rating of 1 W. The device is housed in the DO-213AB (MELF) surface-mount package, measuring 5.2 mm in length and 2.66 mm in diameter. It operates within a temperature range of -65 °C to +175 °C and exhibits a maximum reverse leakage current of 5 µA at the test current of 49 mA.
Feature Summary
- Hermetically sealed glass MELF construction for high reliability
- Surface-mount DO-213AB package design
- Wide operating temperature capability up to 175 °C
Applications
- Voltage regulation circuits
- Voltage reference applications
- Circuit protection systems
Procurement Notes
Verify the specific suffix against official Microchip documentation to confirm tolerance and packaging variations. Ensure the procurement source provides valid traceability for hermetically sealed components. Confirm RoHS compliance status as indicated in the specific datasheet revision. Validate that the DO-213AB package dimensions match the required PCB footprint constraints before finalizing orders.
Selection Notes
Select this component when a surface-mount Zener diode with high-temperature stability is required. The DO-213AB package facilitates automated assembly processes. Consider the 1 W power rating for thermal management in dense layouts. Verify that the 5.1 V breakdown voltage aligns with the circuit's reference or clamping requirements. Evaluate the low leakage current specifications for precision analog applications.
Part Context
This part belongs to the standard 1N47xx series of Zener diodes manufactured by Microchip Technology. The 'UR' suffix typically denotes the surface-mount MELF variant, distinguishing it from through-hole equivalents like the 1N4733A. This series is widely utilized in industrial and commercial electronics requiring reliable voltage stabilization.
Replacement Considerations
Cross-reference with other manufacturers offering DO-213AB packaged Zener diodes with identical 5.1 V and 1 W ratings. Verify pinout compatibility and thermal characteristics before substitution.
