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Product Detailed Parameters
- Description：DIODE ZENER 24V 5W T18
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：24 V
- Tolerance：±5%
- Power - Max：5 W
- Impedance (Max) (Zzt)：3.5 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 17.3 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 1N5359B/TR8 is a JEDEC registered silicon Zener diode with a nominal voltage of 24 V and ±5% tolerance. It operates in a T-18 axial leaded package, providing 5.0 watts power dissipation at 25°C. The device features a maximum dynamic impedance of 3.5 ohms and withstands high surge currents. The TR8 suffix indicates tape and reel packaging per EIA-296 standards.
Feature Summary
- Provides stable voltage regulation across broad operating current and temperature ranges
- Withstands high surge stresses and exhibits minimal voltage changes versus current
- Features flexible axial-lead mounting terminals for through-hole applications
Applications
- Voltage regulation in power supply circuits
- Overvoltage protection for sensitive electronic components
- Reference voltage generation in measurement systems
Procurement Notes
Verify the specific part number against official Microchip or Microsemi documentation to confirm electrical characteristics and mechanical dimensions. Ensure the ordering suffix matches the required packaging format. Cross-reference datasheet parameters such as thermal resistance and maximum ratings before integration into designs.
Selection Notes
Select this component for applications requiring robust 5-watt Zener regulation with axial leads. Consider the ±5% tolerance and thermal derating curves when designing heat sinking solutions. Verify compatibility with existing PCB layouts and ensure adequate clearance for the T-18 package dimensions during assembly.
Part Context
This component belongs to the 1N5333B through 1N5388B series of 5-watt Zener diodes originally developed by Microsemi Scottsdale Division. The series offers a wide selection of voltages from 3.3V to 200V with various tolerance options identified by suffix letters. These devices are designed for high reliability in demanding environments.
Replacement Considerations
Surface mount equivalents are available in SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B packages. Verify pinout compatibility and thermal performance when transitioning between axial and surface mount technologies.
