The VDZ5.1B is a Zener diode manufactured by Rohm Semiconductor. It is designed to provide stable voltage regulation and overvoltage protection in a wide range of electronic applications. This diode offers a precise and reliable voltage reference, making it suitable for safeguarding sensitive components from voltage spikes and surges. Its compact size and robust construction ensure dependable performance in demanding operating conditions.

Applications

• Voltage regulation in power supplies
• Overvoltage protection in electronic equipment
• Reference voltage generation for analog circuits
• Signal clipping and clamping
• Transient voltage suppression in portable devices

Features

• Precise Zener Voltage: The VDZ5.1B offers a tightly controlled Zener voltage of approximately 5.1V, ensuring accurate voltage regulation.
• Low Reverse Leakage Current: Minimizes power loss and improves efficiency in voltage regulation circuits.
• High Surge Current Capability: Provides robust protection against voltage transients and surges.
• Compact Package: Allows for efficient utilization of board space in densely populated electronic circuits.
• RoHS Compliant: Lead-free and compliant with Restriction of Hazardous Substances directives.

Benefits

• Enhanced Circuit Protection: Safeguards sensitive components from damage due to voltage fluctuations.
• Stable Voltage Reference: Provides a reliable and consistent voltage source for accurate circuit operation.
• Improved System Reliability: Reduces the risk of component failure and extends the lifespan of electronic devices.
• Simplified Circuit Design: Facilitates easier implementation of voltage regulation and protection functions.
• Cost-Effective Solution: Offers a balance of performance and affordability for various applications.

Additional Details

The VDZ5.1B is typically available in surface-mount packages such as SOD-323. Key electrical characteristics include a Zener voltage (Vz) of around 5.1V, a low reverse leakage current (Ir), and a power dissipation rating dependent on the package type. Detailed operating conditions, like the Zener test current (Izt) and temperature coefficients, can be found in the manufacturer's datasheet. The device is designed to operate within a specific temperature range, often from -55°C to +150°C. The forward voltage drop typically ranges from 0.9V to 1.1V at a forward current of 10mA. Dynamic impedance is a crucial parameter, indicating the change in Zener voltage with respect to the change in Zener current; a lower value indicates better voltage regulation. Refer to Rohm Semiconductor’s official datasheet for the most accurate and detailed specifications and application guidelines.