The SMAJ4747A is a surface mount Zener diode manufactured by Multicomp. It is designed to provide voltage regulation and surge protection in a wide range of electronic applications.

Applications:

• Voltage regulation
• Transient voltage suppression
• Overvoltage protection
• Clipping circuits
• Reverse polarity protection
• Power supplies

Features:

• Surface mount SMA package
• High surge current capability
• Low leakage current
• Glass passivated chip junction
• Excellent clamping capability
• RoHS compliant

Benefits:

• Provides precise voltage regulation, ensuring stable operation of electronic circuits.
• Protects sensitive components from voltage surges, enhancing system reliability.
• Small footprint saves board space, enabling compact designs.
• Easy to integrate into automated assembly processes.
• Environmentally friendly due to RoHS compliance.

Additional Details:

The SMAJ4747A has a Zener voltage (Vz) of 20V with a tolerance of ±5%. Its maximum power dissipation is 1W. The operating and storage temperature range is -65°C to +150°C. The forward voltage (Vf) is 1.2V at a forward current of 200mA. The device is packaged in a standard SMA (DO-214AC) package. The surge current rating is dependent on the pulse width and repetition rate. The reverse leakage current is very low, contributing to energy efficiency.