The SMAJ43A R2 is a Transient Voltage Suppressor (TVS) diode manufactured by Taiwan Semiconductor. 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 SMA (Surface Mount) package and robust surge protection capabilities.

Applications

• Protection of I/O Interfaces
• Overvoltage transient protection
• Data line protection
• AC/DC power supply protection
• Automotive electronics
• Industrial Equipment

Features

• SMA (DO-214AC) package
• Glass passivated junction
• Uni-directional TVS diode
• Stand-off Voltage: 43V
• Peak Pulse Power: 400W (10/1000μs waveform)
• Excellent clamping capability
• Low incremental surge resistance
• Fast response time: Typically less than 1.0 ps from 0 V to BV min
• Typical IR less than 1 μA above 10V
• High temperature soldering guaranteed: 260°C/10 seconds at terminals
• Plastic material has UL flammability classification 94V-0
• RoHS compliant

Benefits

• Provides robust protection against voltage transients
• Compact size allows for easy integration into space-constrained applications
• High surge capability ensures reliable performance in harsh environments
• Uni-directional configuration offers optimized protection for DC circuits
• Reduces downtime and maintenance costs by preventing component failures
• Enhances product reliability and lifespan

Additional Details

The SMAJ43A R2 TVS diode has a clamping voltage of approximately 69.4V at a peak pulse current (Ipp) of 5.8A. Its operating temperature range is typically from -55°C to +150°C. The 'A' in the part number indicates a uni-directional configuration, making it suitable for protecting DC circuits. The device conforms to industry standards for surge protection and is suitable for use in a wide range of electronic equipment.