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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：±2%
- 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 1N5347C/TR12 is a silicon Zener diode with a nominal voltage of 9.1V and a tight tolerance of ±2%. It operates in a plastic T-18 axial lead package and dissipates up to 5W at 25°C. The device features unidirectional polarity, isolated case connection, and Level 1 moisture sensitivity. It complies with MIL-PRF-19500 standards for JAN screening levels when prefixed with MV. The TR12 suffix indicates tape and reel packaging per EIA-296.
Feature Summary
- Provides precise voltage regulation within a broad operating current and temperature range
- Withstands high surge stresses and offers minimal voltage change versus current
- Features flexible axial-lead mounting terminals for secure installation
- Non-sensitive to electrostatic discharge (ESD) per MIL-STD-750 Method 1020
Applications
- Voltage regulation circuits requiring stable reference voltages
- Power supply protection against overvoltage conditions
- Clamping applications in electronic systems
Procurement Notes
Verify the specific suffix configuration to ensure correct tolerance and packaging. Confirm that the JAN screening level prefix matches project requirements. Check RoHS compliance status if environmental regulations apply. Ensure thermal management design accounts for the specified power dissipation limits and derating curves provided in the datasheet.
Selection Notes
Select this component for applications needing a 9.1V Zener reference with high precision. Consider the 5W power rating and thermal resistance when designing heat sinking. Verify compatibility with existing circuit layouts due to the axial lead package dimensions. Evaluate surge current capabilities for transient protection needs.
Part Context
This part belongs to the JEDEC registered 1N5333B through 1N5388B series of 5-watt Zener diodes. The series covers a wide voltage range from 3.3V to 200V. Different suffix letters indicate varying voltage tolerances, while prefixes denote military screening levels. The T-18 package is standard for this power class.
Replacement Considerations
Equivalent parts include other 9.1V 5W Zener diodes with ±2% tolerance. Verify pinout and package dimensions match the T-18 form factor. Ensure thermal characteristics and maximum ratings are compatible with the original design specifications.
