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Product Detailed Parameters
- Description：DIODE ZENER 51V 1W DO213AB
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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 (TJ)
- 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 1N3037BUR-1/TR is a surface mount Zener diode in the DO-213AB (MELF) package. It provides a nominal Zener voltage of 51 V at a test current of 5.0 mA. The device features a maximum dynamic impedance of 95 Ohms and a maximum reverse leakage current of 10 µA. It operates within a junction temperature range of -55 °C to +175 °C with a DC power dissipation rating of 1.0 W.
Feature Summary
- Hermetically sealed glass MELF construction for high reliability
- Metallurgically bonded internal design for enhanced stability
- Leadless surface mount form factor suitable for high-density mounting
Applications
- Voltage regulation in high-reliability circuits
- High-density electronic assemblies requiring low parasitic characteristics
- Applications necessitating radiation hardness
Procurement Notes
Verify that the specific ordering suffix matches the required military qualification level, as the base part number covers multiple grades. Confirm RoHS compliance status if environmental regulations apply, noting that compliance may be restricted to commercial versions. Ensure the tape and reel specifications align with automated assembly equipment requirements before finalizing procurement.
Selection Notes
Select this component when a hermetic surface mount solution is required for precision voltage reference applications. The DO-213AB package offers a direct footprint alternative to axial leaded equivalents while maintaining thermal performance. Consider the positive temperature coefficient inherent to this voltage class for thermal stability analysis in the target operating environment.
Part Context
This device belongs to the 1N3016B through 1N3045B series of surface mount Zener diodes. It serves as the leadless equivalent to the JEDEC registered 1N3037B-1 in the DO-13 package. The series is qualified under MIL-PRF-19500/115 standards, providing options for JAN, JANTX, and JANTXV reliability levels.
Replacement Considerations
The 1N3037B-1 in the DO-41 axial package is the direct leaded equivalent. Surface mount replacements must match the DO-213AB outline dimensions and verify thermal resistance compatibility.
