BZX55A8V2 – SGS

Overview

The Vishay BZX55A8V2 is a highly stable 8.2V Zener diode designed for precise voltage regulation in demanding applications. Its critical operational characteristic lies in its tight ±1% tolerance, ensuring minimal deviation from the nominal 8.2V under varying load conditions. A key design consideration often overlooked is the trade-off between Zener impedance (7 Ohms max) and power dissipation (500mW). While low impedance is desirable for transient suppression, it can lead to increased self-heating at higher currents, necessitating careful thermal management to maintain the diode’s stated 175°C operating temperature and long-term reliability.

Key Features

• Zener Voltage (Vz): 8.2 V
• Tolerance: ±1%
• Maximum Power Dissipation: 500 mW
• Maximum Zener Impedance (Zzt): 7 Ohms
• Reverse Leakage Current: 100 nA @ 6.2 V
• Package: DO-204AH (DO-35), 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.

• Precision voltage reference in analog circuits
• Overvoltage protection for sensitive ICs
• Stable bias point generation for active components
• Voltage clamping in automotive power management systems