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Product Detailed Parameters
- Description：DIODE ZENER 51V 5W T18
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：51 V
- Tolerance：±5%
- Power - Max：5 W
- Impedance (Max) (Zzt)：27 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 36.7 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 1N5369B/TR8 is a silicon 5.0-watt Zener diode with a nominal voltage of 51V and a ±5% tolerance. It features a maximum dynamic impedance of 27 ohms and a maximum reverse current of 93 µA at 38.8V. The device operates within a temperature range of -65°C to +150°C, utilizing a T-18 axial lead package. The TR suffix indicates tape and reel packaging compliant with EIA-296 standards.
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 generation in measurement systems
Procurement Notes
Verify the specific manufacturer origin, as Microsemi was acquired by Microchip Technology. Confirm RoHS compliance status, as standard versions may not be compliant while e3 suffixes are. Ensure the TR suffix matches the required tape and reel specifications for automated assembly processes.
Selection Notes
Select this component when a 51V regulation point is required with moderate precision. Consider the 5W power dissipation capability and thermal resistance characteristics for heat sinking requirements. Verify that the axial lead form factor fits the available board space and mounting constraints.
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 3.3V to 200V with various tolerance options identified by suffix letters. These plastic encapsulated devices are designed for high DC currents with adequate heat sinking.
Replacement Considerations
Equivalent parts include the 1N5369BG manufactured by onsemi. Surface mount equivalents such as SMBJ5369B or SMBG5369B are also available for designs requiring different mounting styles.
