1N5359B – ON-SEMI

Overview

The ON-SEMI 1N5359B is a robust 5W Zener diode designed for precise voltage regulation in demanding applications. Its primary function is to maintain a stable 24V output voltage, even under fluctuating input conditions, with a tight 5% tolerance. A critical design consideration for high-power Zeners like the 1N5359B is managing thermal dissipation; while rated at 5W, continuous operation near this limit necessitates careful heatsinking to prevent junction degradation and ensure long-term reliability, a trade-off often encountered when balancing compact form factors with substantial power handling.

Key Features

• Zener Voltage (Vz): 24 V
• Power Dissipation (Pd): 5 W
• Voltage Tolerance: 5 %
• Maximum Reverse Leakage Current (Ir): 500 nA
• Zener Impedance (Zz): 3.5 Ohms @ 50 mA
• Operating Temperature Range: -65 °C to +200 °C
• Package: DO-35-2 (Through Hole, Axial Termination)

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.

• Precision voltage clamping in linear power supply regulation stages.
• Reference voltage generation for analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).
• Transient voltage suppression in sensitive signal paths.
• Overvoltage protection for battery charging circuits.