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1N4751AUR/TR
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Product Detailed Parameters
- Description：DIODE ZENER 30V 1W DO213AB
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：30 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：40 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 22.8 V
- Operating Temperature：-65°C ~ 175°C
- 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 1N4751AUR/TR is a single silicon Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 30V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 1W and utilizes the DO-213AB (MELF) surface-mount package. It is designed for unidirectional operation within an operating temperature range of -65°C to +175°C.
Feature Summary
- Hermetically sealed glass MELF package construction
- High reliability design suitable for demanding environments
- Electrical equivalence to the JEDEC registered 1N4728 through 1N4764 series
Applications
- Voltage regulation in high-reliability circuits
- Overvoltage protection applications
- Reference voltage generation in aerospace or military systems
Procurement Notes
Verify that the specific order suffix matches the required screening level, as prefixes such as MQ, MX, MV, or MSP indicate different MIL-PRF-19500 screening options like JAN or JANS. Confirm RoHS compliance status, as hermetic variants often fall outside standard environmental directives. Ensure the procurement documentation aligns with the source control drawing requirements if applicable.
Selection Notes
Select this component when a hermetically sealed surface-mount Zener diode is required for high-temperature stability. The DO-213AB package offers a compact form factor compared to axial leads. Consider the ±5% voltage tolerance and 1W power rating against circuit load requirements. Verify that the operating temperature range meets the system's thermal specifications.
Part Context
This part belongs to the 1N47xxA family of 1-Watt Zener diodes produced by Microchip Technology. These devices are widely recognized for their robustness and are commonly specified in defense and industrial electronics where long-term stability and resistance to harsh conditions are critical performance factors.
Replacement Considerations
Electrically similar parts include the JEDEC registered 1N4728 through 1N4764 zener series. Surface mount equivalents such as SMAJ4728A may be considered for non-hermetic applications.
