The P4SMA18CA R3 is a surface-mount Transient Voltage Suppressor (TVS) diode manufactured by Taiwan Semiconductor. It is designed to protect sensitive electronic components from voltage transients induced by lightning, inductive load switching, and electrostatic discharge (ESD). This TVS diode is part of the SMA series, known for its compact size and reliable performance.

Applications:

• Protection of I/O interfaces
• Overvoltage protection in sensitive equipment
• Transient voltage suppression in automotive electronics
• Protection of data lines and power lines
• Use in communication devices, such as mobile phones and modems

Features:

• Surface Mount SMA package
• Reverse Standoff Voltage: 18V
• Breakdown Voltage: Typically 20V
• Clamping Voltage: Typically 29.2V
• Peak Pulse Power: 400W (10/1000μs waveform)
• Excellent clamping capability
• Low incremental surge resistance
• Fast response time: typically less than 1.0ps from 0 Volts to BV min
• Typical IR less than 1μA above 10V
• High temperature soldering guaranteed: 260°C/10 seconds at terminals
• Plastic package has Underwriters Laboratory Flammability Classification 94V-0

Benefits:

• Provides robust protection against voltage transients
• Compact size allows for use in space-constrained applications
• High surge capability ensures reliable protection under severe conditions
• Fast response time minimizes the risk of damage to protected components
• Reduces downtime and maintenance costs associated with transient-related failures
• Increases the overall reliability and lifespan of electronic equipment

Additional Details:

The P4SMA18CA R3 is a bidirectional TVS diode, meaning it provides protection against both positive and negative voltage transients. It is designed to operate over a wide temperature range. The SMA package facilitates easy mounting on printed circuit boards. This device conforms to industry standards for surge protection and reliability. The R3 suffix might denote tape and reel packaging.