The SMAJ4748A is a surface mount transient voltage suppressor (TVS) diode manufactured by Micro Commercial Co. It is designed to protect sensitive electronic components from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events. This device is part of the SMAJ series, known for its compact size and reliable performance in protecting various applications.

Applications

• Protection of I/O interfaces
• Voltage surge protection in consumer electronics
• Industrial control systems
• Telecommunication equipment
• Medical devices

Features

• Surface mount package
• Low profile
• Glass passivated junction
• Excellent clamping capability
• Typical IR less than 1 μA above 10V
• Fast response time: typically less than 1.0 ps from 0 Volts to BV min
• High temperature soldering guaranteed: 260°C/10 seconds at terminals
• Plastic material used carries Underwriters Laboratory Flammability Classification 94V-0

Benefits

• Provides robust protection against voltage transients, ensuring the longevity and reliability of protected circuits.
• Compact size allows for easy integration into space-constrained applications.
• Fast response time ensures quick clamping of transient voltages, preventing damage to sensitive components.
• High temperature soldering capability simplifies manufacturing processes.
• Enhances the overall reliability and safety of electronic devices by preventing failures caused by voltage surges.

Additional Details

The SMAJ4748A has a stand-off voltage of 18 Volts and a breakdown voltage of 20 Volts. Its peak pulse power dissipation is 400 Watts. This TVS diode is designed to operate within a wide temperature range, making it suitable for various environmental conditions. The SMAJ package offers excellent thermal performance, allowing for efficient heat dissipation during transient events. It conforms to RoHS standards, ensuring environmental compliance.