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Product Detailed Parameters
- Description：DIODE ZENER 10V 5W T18
- Series：-
- Mfr：Microsemi Corporation
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：10 V
- Tolerance：±10%
- Power - Max：5 W
- Impedance (Max) (Zzt)：2 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 7.2 V
- Operating Temperature：-65°C ~ 150°C
- Mounting Type：Through Hole
- Package / Case：T-18, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 1 A
- Grade：-
- Qualification：-
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Overview
The Microsemi Corporation 1N5347A/TR12 is a silicon 5.0-watt Zener diode with a nominal voltage of 10 V and a ±10% tolerance. It features an axial-lead T-18 plastic encapsulated package. The device operates within a temperature range of -65°C to +150°C and has a maximum dynamic impedance of 2.0 Ohms at a test current of 125 mA. Reverse leakage current is specified as 5.0 µA at 7.6 V.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Withstands high surge stresses and exhibits minimal voltage change versus current
- Features flexible axial-lead mounting terminals for through-hole applications
- Moisture classification Level 1 requiring no dry pack storage
Applications
- Voltage regulation in power supply circuits
- Overvoltage protection for sensitive electronic components
- Reference voltage sources in measurement equipment
Procurement Notes
Verify the specific suffix 'TR12' against official Microsemi documentation, as standard datasheets typically list 'TR' for tape and reel options. Confirm RoHS compliance status, as non-e3 variants may contain lead. Check for end-of-life notifications or alternative package equivalents if sourcing new production units.
Selection Notes
Select this component for applications requiring a 10 V reference with moderate precision (±10%). Ensure adequate heat sinking is provided to maintain power dissipation within the 5 W limit. Consider the T-18 package dimensions for PCB layout constraints and verify thermal resistance requirements for the specific mounting environment.
Part Context
This part belongs to the JEDEC registered 1N5333B through 1N5388B series of 5-watt Zener diodes. The series offers a wide selection of voltages from 3.3 V to 200 V. Different suffix letters indicate varying voltage tolerances, with 'A' denoting ±10%. The series is designed for general-purpose voltage regulation and protection tasks.
Replacement Considerations
Equivalent parts include other 10 V 5 W Zener diodes in the T-18 package. Verify electrical parameters such as dynamic impedance and reverse leakage current match the original specifications. Cross-reference with manufacturer-specific equivalents like MV1N5347 for military screening levels if required.
