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1N5523BUR-1
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Product Detailed Parameters
- Description：DIODE ZENER 5.1V 500MW DO213AA
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：5.1 V
- Tolerance：±5%
- Power - Max：500 mW
- Impedance (Max) (Zzt)：26 Ohms
- Current - Reverse Leakage @ Vr：2 µA @ 2.5 V
- Operating Temperature：-65°C ~ 175°C
- Mounting Type：Surface Mount
- Package / Case：DO-213AA
- Voltage - Forward (Vf) (Max) @ If：1.1 V @ 200 mA
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N5523BUR-1 is a low voltage avalanche Zener diode rated at 0.5 W, housed in a hermetically sealed DO-213AA MELF surface mount package. It features a nominal Zener voltage of 5.1 V with a ±5% tolerance and a maximum dynamic impedance of 26 Ohms at a test current of 5 mA. The device supports a maximum DC regulator current of 75 mA and operates within a junction temperature range of -65°C to +175°C.
Feature Summary
- Hermetically sealed glass MELF package construction
- Internal metallurgical bond option for enhanced reliability
- Qualified per MIL-PRF-19500/437 standards
- Inherently radiation hard design
Applications
- Voltage regulation over broad operating currents
- Temperature compensation circuits
- Reference voltage generation
- Protection against overvoltage transients
Procurement Notes
Verify the specific suffix configuration against the datasheet nomenclature table to ensure correct tolerance and RoHS compliance status. Confirm that the required metallurgical bond option is specified if high-reliability performance is necessary. Check for availability of JAN, JANTX, or JANTXV qualification levels depending on the intended application environment.
Selection Notes
Select this component when a surface mount Zener diode with high reliability and radiation hardness is required. Ensure the circuit design accommodates the 0.5 W power dissipation limit and derating curves provided in the datasheet. Verify that the 5.1 V nominal voltage aligns with the system requirements and that the ±5% tolerance meets the precision needs of the application.
Part Context
This part belongs to the 1N5518BUR-1 through 1N5546BUR-1 series of low voltage avalanche Zener diodes manufactured by Microchip Technology (formerly Microsemi). The series offers a wide selection of voltages from 3.3 V to 33 V with various tolerance options. These devices are designed for commercial and military applications requiring robust surface mount solutions.
Replacement Considerations
Equivalent parts include other 1N5523 variants such as 1N5523C/TR or 1N5523D/TR from Microchip Technology, which offer different tolerance levels. Cross-reference with standard JEDEC registered 1N5523 diodes in axial packages if surface mount compatibility is not strictly required.
