1N5363B – ONSEMI

Overview

The ONSEMI 1N5363B is a robust 30V Zener diode designed for precise voltage regulation in demanding applications. Its 5W power dissipation capability, coupled with a tight 5% voltage tolerance, makes it suitable for stabilizing supply rails where transient overvoltage protection is critical. A key design consideration when employing high-power Zeners like the 1N5363B is managing thermal dissipation; while rated for 5W, continuous operation at or near this limit necessitates careful heatsinking to prevent junction degradation and ensure long-term reliability, a trade-off often encountered in compact, high-power density designs.

Key Features

• Zener Voltage (Vz): 30 V
• Power Dissipation (Pd): 5 W
• Voltage Tolerance: 5 %
• Maximum Reverse Leakage Current (Ir): 500 nA
• Zener Impedance (Zz): 8 Ohms
• Package/Case: DO-35-2 (Through Hole, Axial)

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

• Overvoltage clamping in sensitive analog signal conditioning circuits.
• Voltage reference generation for precision measurement equipment.
• Transient suppression for DC power input stages in industrial control systems.
• Crowbar protection for sensitive microcontrollers during power supply fluctuations.