The PTZ4.7B is a Zener diode produced by Rohm Semiconductor. It serves to maintain a steady voltage level or to shield circuits from voltage spikes. Zener diodes are indispensable in various electronic contexts, including voltage stabilization, overvoltage prevention, and signal modification.

Applications

• Voltage regulation in power supplies
• Protection against overvoltage in electronic circuits
• Signal clipping and shaping
• Reference voltage provision
• Transient voltage suppression

Features

• Zener Voltage: 4.7V (Nominal)
• Low reverse current leakage
• High surge current tolerance
• Compact package size
• Excellent reliability

Benefits

• Provides reliable voltage regulation, leading to stable circuit operation.
• Protects circuit components from damage due to voltage surges.
• Offers a compact and efficient method for voltage regulation and protection.
• Increases the reliability and life expectancy of electronic products.
• Simple to incorporate into different circuit topologies.

Technical Specifications

The PTZ4.7B is usually provided in a surface-mount package. Essential specifications include a Zener voltage of 4.7V, small reverse leakage current, and a specified surge current capability. Detailed electrical specifications, thermal characteristics, and package dimensions are found in the manufacturer's datasheet, and should be examined to make sure the component is suitable for the application. Power dissipation is an important parameter during circuit design to avoid thermal damage and to provide reliable function.