The UDZ4.7B is a Zener diode manufactured by Rohm Semiconductor. It's designed for voltage regulation and surge protection in various electronic devices. This diode provides a stable voltage reference and protects sensitive components from harmful voltage spikes.

Applications

• Voltage stabilization in electronic circuits.
• Surge protection for sensitive components.
• Clipping circuits for signal conditioning.
• Overvoltage protection in power supplies.
• Reference voltage generation.

Features

• Zener Voltage: 4.7V (Nominal).
• Low leakage current: Minimizes power loss.
• High surge current capability: Provides robust protection against transient voltage spikes.
• Small Package Size: Allows for compact circuit designs.
• High reliability: Ensures stable performance over a long operational life.

Benefits

• Stable Voltage Regulation: Provides a constant voltage output, ensuring proper circuit operation.
• Effective Surge Protection: Protects downstream components from damage due to voltage surges.
• Compact Design: Enables miniaturization of electronic devices.
• Improved Circuit Reliability: Extends the lifespan of electronic equipment by preventing overvoltage damage.
• Reduced Power Consumption: Low leakage current contributes to energy efficiency.

Technical Specifications

The UDZ4.7B is typically available in a small SMD package. Key specifications include a Zener voltage of approximately 4.7V, a low reverse leakage current, and a specified surge current capability. The exact values may vary slightly depending on the specific manufacturing batch and should be verified using the manufacturer's datasheet. It operates over a standard industrial temperature range. The forward voltage drop is also a relevant parameter for certain applications. The device is RoHS compliant.