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1N4761UR-1/TR
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Product Detailed Parameters
- Description：DIODE ZENER 75V 1W DO213AB
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Zener (Nom) (Vz)：75 V
- Tolerance：±10%
- Power - Max：1 W
- Impedance (Max) (Zzt)：175 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 56 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 1N4761UR-1/TR is a surface mountable 1.0 W glass Zener diode in the DO-213AB package. It provides a nominal Zener voltage of 75 V with a standard tolerance of ±10%. The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 5 µA at 56 V. Electrical characteristics include a test current of 3.3 mA, a dynamic impedance of 175 Ohms, and a maximum regulator current of 60 mA.
Feature Summary
- Hermetically sealed glass MELF package for high reliability
- Surface mount equivalent to JEDEC registered axial-leaded series
- Inherently radiation hard per MicroNote 050
- Leadless design ideal for high density mounting
Applications
- Voltage regulation in high density circuitry
- Low parasitic requirement applications
- High reliability systems requiring source control drawings
- Broad operating current and temperature range regulation
Procurement Notes
Verify the specific suffix configuration against official datasheets to confirm tolerance levels and screening options. Confirm RoHS compliance status if required by project specifications. Ensure compatibility with recommended FR4 PC board footprints for optimal thermal performance. Check for availability of alternative prefixes for military-grade screening requirements.
Selection Notes
Select this component for applications requiring a 1 W surface mount Zener diode with hermetic sealing. The DO-213AB package offers a direct replacement for traditional axial leads while maintaining electrical equivalence to the 1N4761 series. Consider the specified thermal resistance values when designing heat dissipation strategies for dense PCB layouts.
Part Context
This part belongs to the 1N4728UR thru 1N4764AUR series of surface mount glass Zener diodes manufactured by Microsemi (now Microchip Technology). The series covers Zener voltages from 3.3 V to 100 V. The 'UR' designation indicates the surface mount variant, while the 'TR' suffix denotes tape and reel packaging.
Replacement Considerations
Electrically similar to the JEDEC registered 1N4761 axial-leaded series. Surface mount equivalents are available as SMAJ4761A. Plastic body axial-leaded equivalents include the 1N4761A.
