The 1SMA4730A is a surface-mount Zener diode manufactured by EIC Discrete Semiconductors. It is designed to provide voltage regulation and transient voltage suppression in various electronic circuits.

Applications

• Voltage regulation
• Transient voltage suppression (TVS)
• Overvoltage protection
• Clipping and clamping circuits
• Protection of sensitive electronic components

Features

• Surface mount package
• Low profile
• Fast response time
• High surge current capability
• Excellent clamping capability

Benefits

• Provides stable voltage regulation
• Protects circuits from voltage transients and surges
• Reduces component failure rates
• Improves system reliability
• Simplifies circuit design

Additional Details

The 1SMA4730A has a Zener voltage of 3.9V. The power dissipation is 1W. It has a typical forward voltage drop of around 0.9V at 200mA. The operating temperature range is typically -55°C to +150°C. The package is SMA (DO-214AC). Its fast response time makes it suitable for protecting against fast transient events. The high surge current capability ensures it can withstand high-energy surges without failure. It is compliant with RoHS standards. The reverse leakage current is low, typically less than 5uA at the rated voltage.