The BZD17C22P is a Zener diode manufactured by Vishay. It is designed to provide a stable reference voltage in various electronic circuits. Being categorized as END-OF-LIFE, understanding its specifications is crucial for maintenance or finding suitable replacements.

Applications

• Voltage regulation
• Voltage reference
• Transient voltage suppression
• Overvoltage protection
• Clipping circuits

Features

• Zener voltage: 22V (Nominal)
• Low leakage current: Minimizes power consumption.
• Sharp breakdown characteristic: Provides precise voltage regulation.
• High surge current capability: Offers protection against voltage spikes.

Benefits

• Stable voltage regulation: Maintains a constant output voltage despite variations in input voltage or load current.
• Overvoltage protection: Protects sensitive circuits from damage due to voltage surges.
• Improved circuit reliability: Provides a stable and predictable voltage reference.
• Reduced component count: Simplifies circuit design by integrating voltage regulation and protection functions.

Additional Details

The BZD17C22P has a typical Zener voltage (VZ) of 22V with a tolerance that varies depending on the specific grade. The power dissipation is typically 1.5W. It is packaged in a DO-214AC (SMA) package. The Zener voltage is specified at a particular test current (IZT), which should be considered during circuit design. Because it is END-OF-LIFE, check availability and long-term support implications. When replacing, prioritize matching the Zener voltage, power dissipation, and package type. It's essential to consult the original datasheet for detailed electrical characteristics, thermal characteristics, and package dimensions. Select a replacement that meets or exceeds these parameters to ensure proper functionality. Pay attention to the temperature coefficient of the Zener voltage, as this can affect the stability of the reference voltage over temperature. Consider low-TCR (temperature coefficient of resistance) Zener diodes for high-stability applications.