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Product Detailed Parameters
- Description：DIODE ZENER 15V 5W T18
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：15 V
- Tolerance：±5%
- Power - Max：5 W
- Impedance (Max) (Zzt)：2.5 Ohms
- Current - Reverse Leakage @ Vr：1 µA @ 10.8 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 Microchip Technology 1N5352B/TR8 is a silicon 5-watt Zener diode with a nominal voltage of 15V and a ±5% tolerance. It operates within a temperature range of -65°C to +150°C and features a T-18 axial lead package. The device provides a maximum dynamic impedance of 2.5 ohms at a test current of 75mA, with a maximum reverse leakage current of 1.0µA. It is supplied in tape and reel packaging.
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
Applications
- Voltage regulation circuits requiring 5W power dissipation
- High current applications with adequate heat sinking
- General purpose voltage reference designs
Procurement Notes
Verify the component manufacturer origin, as the datasheet identifies Microsemi while the model prefix indicates Microchip Technology. Confirm that the TR8 suffix corresponds to the specified tape and reel packaging format. Ensure the B suffix matches the required ±5% voltage tolerance specification before procurement.
Selection Notes
Select this component when a 15V Zener reference with 5W power handling is required. Verify thermal management capabilities, as steady-state power dissipation depends on lead length or PCB copper area. Consider the specific dynamic impedance and leakage current limits for precision requirements.
Part Context
This part belongs to the JEDEC registered 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series covers a voltage selection from 3.3V to 200V. The 'B' suffix specifically denotes a standard voltage tolerance of plus or minus 5%. The 'TR' suffix indicates availability in tape and reel packaging options.
Replacement Considerations
Compatible substitutes include other 1N53xxB series devices from Microsemi/Microchip Technology offering similar 5W ratings and axial T-18 packages. Surface mount equivalents such as SMBJ5352B or SMBG5352B are available for board space constrained designs.
