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1N4756AUR/TR
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Product Detailed Parameters
- Description：DIODE ZENER 47V 1W DO213AB
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Zener (Nom) (Vz)：47 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：80 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 35.8 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 Microchip Technology 1N4756AUR/TR is a surface mount glass Zener diode in the DO-213AB (MELF) package. It provides a nominal Zener voltage of 47 V with a standard tolerance of ±5%. The device is rated for a maximum power dissipation of 1 W and operates within a temperature range of -65°C to +175°C. Electrical characteristics include a maximum dynamic impedance of 80 Ohms at a test current of 5.5 mA, a maximum reverse leakage current of 5 µA at 35.8 V, and a forward voltage of 1.2 V at 200 mA.
Feature Summary
- Hermetically sealed glass MELF package suitable for high reliability applications
- Surface mount design ideal for high density mounting with low parasitic requirements
- Inherently radiation hard per MicroNote 050
- ESD nonsensitive construction
Applications
- Voltage regulation in high density electronic circuits
- High reliability applications requiring source control drawings
- Radiation-hardened circuit designs
Procurement Notes
Verify the manufacturer origin as the product history involves transitions between Microsemi and Microchip Technology. Confirm that the specific ordering suffix matches the required tape and reel packaging configuration. Ensure compliance with RoHS standards if applicable to the project requirements. Cross-reference the part number against the official datasheet to confirm electrical equivalence to the JEDEC registered series.
Selection Notes
Select this component when a surface mount solution is required for voltage regulation tasks. The DO-213AB package offers a leadless form factor beneficial for space-constrained layouts. Consider the wide operating temperature range and hermetic sealing for environments demanding high stability and reliability. Verify that the 47 V breakdown voltage aligns with the specific circuit regulation needs.
Part Context
This component belongs to the 1N4728AUR through 1N4764AUR series of surface mountable 1 watt Zener diodes. The series is electrically equivalent to the traditional 1N4728A through 1N4764A registration but utilizes the JEDEC surface mount outline DO-213AB. The 'TR' suffix indicates the device is supplied in tape and reel packaging for automated assembly processes.
Replacement Considerations
The 1N4756AUR/TR is electrically similar to the JEDEC registered 1N4756A series. Surface mount equivalents are available as SMAJ4756A or SMAJ4756A. Plastic body axial-leaded equivalents include the 1N4756A.
