The 1SMA4751A is a Zener diode from EIC discrete Semiconductors, designed for voltage regulation and transient voltage suppression. It is a surface-mount device in an SMA package, making it suitable for applications where space is limited.

Applications

• Voltage regulation in power supplies
• Overvoltage protection
• Transient voltage suppression in data lines
• Clipping circuits
• Automotive electronics

Features

• SMA surface-mount package
• Zener voltage of approximately 30V
• High surge current capability
• Glass passivated junction for reliability
• Low profile design

Benefits

• Provides a stable voltage reference
• Protects circuits from voltage spikes
• Saves board space
• Enhances reliability of electronic devices
• Suitable for automated assembly

Additional Details

The 1SMA4751A's power dissipation rating is an important consideration for selecting this diode. The Zener voltage is specified at a particular test current. Ensure that the operating current and temperature remain within the specified limits to maintain performance. The reverse leakage current should be checked to minimize unwanted current draw in the circuit. The datasheet provides complete specifications on clamping voltage and dynamic impedance for detailed design considerations.