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1N5522BUR-1
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Product Detailed Parameters
- Description：DIODE ZENER 4.7V 500MW DO213AA
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：4.7 V
- Tolerance：±5%
- Power - Max：500 mW
- Impedance (Max) (Zzt)：22 Ohms
- Current - Reverse Leakage @ Vr：2 µA @ 2 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 Microchip Technology 1N5522BUR-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 provides a nominal Zener voltage of 4.7 V with a standard tolerance of ±5%. The device operates within a junction temperature range of -65°C to +175°C and features an internal metallurgical bond for enhanced reliability.
Feature Summary
- Hermetically sealed glass MELF package construction
- Internal metallurgical bond option
- Qualified per MIL-PRF-19500/437 standards
- Inherently radiation hard
Applications
- Voltage regulation over broad operating current ranges
- Temperature compensation circuits
- Reference voltage sources in aerospace systems
Procurement Notes
Verify the specific military qualification level (JAN, JANTX, or JANTXV) required for your application, as availability varies by grade. Confirm RoHS compliance status if applicable, noting that compliant versions are typically commercial grade only. Ensure the ordering suffix matches the desired tolerance and plating specifications.
Selection Notes
Select this component when a hermetically sealed surface mount Zener regulator is needed for high-reliability environments. The 4.7 V nominal voltage suits low-voltage reference applications. Consider the ±5% tolerance and 0.5 W power dissipation limits against circuit requirements. Verify thermal derating curves for operation near maximum temperatures.
Part Context
This part belongs to the 1N5518BUR-1 through 1N5546BUR-1 series of low voltage avalanche Zener diodes. The series offers a selection from 3.3 to 33 volts with various tolerance options. These devices are designed for surface mount applications requiring robust performance in harsh conditions.
Replacement Considerations
Direct replacements include other parts in the 1N5518BUR-1 thru 1N5546BUR-1 series with matching voltage and tolerance. Cross-reference with JEDEC registered 1N5518 thru 1N5546 equivalents. Verify package compatibility and qualification levels before substitution.
