The BZX85B22 is a silicon planar Zener diode manufactured by Vishay. It is designed for voltage stabilization and overvoltage protection applications. As part of the BZX85 series, this diode offers a stable reference voltage and is commonly used to protect sensitive electronic components from voltage spikes and surges.

Applications

• Voltage Regulation: Maintaining a stable voltage level in power supplies and other electronic circuits.
• Overvoltage Protection: Protecting circuits from damage due to excessive voltage.
• Transient Suppression: Absorbing voltage spikes and surges to prevent damage to sensitive components.
• Reference Voltage: Providing a stable reference voltage for measurement and control circuits.
• Clipping Circuits: Limiting the maximum voltage in a circuit.

Features

• Zener Voltage: 22V nominal Zener voltage.
• High Surge Current Capability: Ability to withstand high surge currents.
• Low Dynamic Resistance: Provides stable voltage regulation under varying current conditions.
• Glass Passivated Junction: Enhances reliability and stability.
• DO-41 Package: Standard axial-lead package for easy mounting.

Benefits

• Stable Voltage Regulation: Ensures a consistent voltage output, improving circuit performance.
• Reliable Protection: Protects sensitive components from voltage transients and overvoltage conditions.
• Easy to Use: Standard DO-41 package simplifies installation and integration into circuits.
• Long-Term Stability: Glass passivated junction ensures long-term reliability and performance.
• Cost-Effective: Provides a reliable and affordable solution for voltage regulation and protection.

Technical Specifications

• Zener Voltage (Vz): 22V ± 5%
• Zener Current (Iz): Specific to datasheet (check Vishay datasheet)
• Power Dissipation (Pd): 1.3 W
• Operating Temperature Range: -65°C to +175°C
• Forward Voltage (Vf): 1.0 V at If = 100 mA

The BZX85B22 from Vishay is a reliable Zener diode suitable for a wide range of voltage regulation and protection applications. Engineers should consult the official datasheet for detailed specifications and application guidelines. Its robust design and stable performance make it a popular choice in various electronic devices and systems.