The UDZ4.3B is a Zener diode produced by Rohm Semiconductor, engineered for voltage regulation and transient voltage suppression in diverse electronic applications. This diode offers a reliable voltage reference and safeguards delicate components from potentially damaging voltage spikes.

Applications

• Voltage stabilization in power supplies.
• Overvoltage protection in sensitive electronic circuits.
• Transient voltage suppression in portable devices.
• Clipping and clamping circuits.
• Reference voltage generation.

Features

• Zener Voltage: 4.3V (Nominal).
• Low leakage current: Minimizes power dissipation.
• High surge current capability: Offers robust protection against transient voltage surges.
• Small Package Size: Facilitates compact circuit designs.
• High Reliability: Ensures stable performance over extended operation.

Benefits

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

Technical Specifications

The UDZ4.3B typically comes in a small surface mount package. Key specifications include a Zener voltage of approximately 4.3V, a low reverse leakage current, and a specified surge current capacity. The precise values may vary based 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.