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1N5533BUR-1
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Product Detailed Parameters
- Description：DIODE ZENER 13V 500MW DO213AA
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：13 V
- Tolerance：±5%
- Power - Max：500 mW
- Impedance (Max) (Zzt)：90 Ohms
- Current - Reverse Leakage @ Vr：10 nA @ 11.7 V
- Operating Temperature：-65°C ~ 175°C (TJ)
- 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 1N5533BUR-1 is a low voltage avalanche Zener diode with a nominal breakdown voltage of 13 V at a test current of 1 mA. It operates within a power dissipation limit of 0.5 W and features a maximum reverse leakage current of 10 nA. The device exhibits a dynamic impedance of 90 Ohms and maintains a forward voltage of 1.1 V. It is housed in a hermetically sealed DO-213AA MELF package, supporting an operating temperature range from -65°C to +175°C.
Feature Summary
- Hermetically sealed glass surface mount construction
- Internal metallurgical bond for enhanced reliability
- Radiation hard design suitable for aerospace environments
- ESD resistant per MIL-STD-750 Method 1020
Applications
- Satellite communications terminals
- Defense systems requiring radiation tolerance
- Voltage regulation over broad operating ranges
- High-reliability aerospace circuits
Procurement Notes
Verify the specific revision level against the latest Microchip datasheet T4-LDS-0037. Confirm that the B suffix corresponds to the required 5% voltage tolerance. Ensure the UR-1 designation matches the specified metallurgical bond requirement for your application environment.
Selection Notes
Select this component when a hermetically sealed surface mount Zener regulator is required for high-reliability applications. The 13 V rating suits reference designs needing stable breakdown characteristics. Consider the 0.5 W power dissipation limit and thermal resistance values during PCB layout planning.
Part Context
This part belongs to the 1N5518BUR-1 through 1N5546BUR-1 series of low voltage avalanche Zener diodes. Manufactured originally by Microsemi and now under Microchip Technology, these devices are qualified per MIL-PRF-19500/437 standards. They provide a selection of voltages from 3.3 V to 33 V in a compact MELF package.
Replacement Considerations
Direct replacements include other parts from the 1N5518BUR-1 through 1N5546BUR-1 series. Verify equivalent voltage ratings and package compatibility before substitution.
