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Product Detailed Parameters
- Description：DIODE ZENER 51V 1W DO213AB
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：51 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：95 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 38.8 V
- Operating Temperature：-55°C ~ 175°C
- Mounting Type：Surface Mount
- Package / Case：DO-213AB, MELF
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 200 mA
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N3037BUR-1 is a surface mount Zener diode with a nominal voltage of 51 V and a 5% tolerance. It operates within a temperature range of -55 °C to +175 °C and dissipates up to 1 W. Key electrical parameters include a test current of 5.0 mA, maximum reverse leakage of 18 µA, and dynamic impedance of 95 Ohms at the test point. The device utilizes a DO-213AB (MELF) package.
Feature Summary
- Hermetically sealed glass construction with metallurgically bonded internal contacts for high reliability.
- Qualified per MIL-PRF-19500/115 for JAN, JANTX, and JANTXV military levels.
- Leadless surface mount design suitable for high-density applications.
- Inherently radiation hard.
Applications
- Voltage regulation in high-reliability environments
- High-density circuit board mounting
- Military and aerospace electronic systems
Procurement Notes
Verify the specific military qualification level required, as the part number suffix indicates the reliability tier. Confirm RoHS compliance status if applicable, noting that commercial versions may differ from qualified military grades. Ensure the ordering suffix matches the desired tolerance and packaging configuration before finalizing procurement.
Selection Notes
Select this component when a hermetically sealed, leadless surface mount Zener diode is required for high-reliability applications. The 51 V nominal voltage and 5% tolerance suit precise regulation needs. Consider the 1 W power dissipation and thermal resistance characteristics for heat management in dense layouts.
Part Context
This component belongs to the 1N3016B-1 through 1N3045B-1 series, which are surface mount equivalents of JEDEC registered devices. The series offers a wide voltage range from 6.8 V to 110 V in the DO-213AB package, providing a robust alternative to traditional axial-leaded packages for modern surface mount technology.
Replacement Considerations
Direct replacements include other parts within the 1N3016BUR-1 to 1N3045BUR-1 series or equivalent MIL-PRF-19500/115 qualified Zener diodes in the DO-213AB package. Verify matching voltage, tolerance, and package dimensions for compatibility.
