The SMCJ45A-TP is a Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Components (MCC). It is designed to protect sensitive electronic components from voltage transients induced by inductive load switching, lightning strikes, and electrostatic discharge (ESD). The device is packaged in a compact SMC (DO-214AA) surface-mount package, making it suitable for high-density circuit board assemblies.

Applications

• I/O port protection
• Power supply protection
• Data line protection
• Microcontroller protection
• Automotive electronics

Features

• Surface Mount SMC package
• Glass passivated chip junction
• 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 material used carries Underwriters Laboratory Flammability Classification 94V-0

Benefits

• Provides robust protection against voltage transients, improving system reliability.
• Compact size allows for use in space-constrained applications.
• Fast response time ensures effective protection even against fast transient events.
• Reduces downtime and repair costs associated with component failure due to voltage surges.
• Compliant with industry safety standards.

Detailed Specs

The SMCJ45A-TP has a stand-off voltage of 45V. It is a unidirectional TVS diode. The peak pulse power dissipation is typically rated at 1500W for a 10/1000μs waveform. The clamping voltage is designed to limit the voltage across the protected circuit to a safe level during a transient event. The device's operating temperature range is generally between -55°C to +150°C. It is important to consult the manufacturer's datasheet for precise electrical characteristics, including the clamping voltage at specific test currents, reverse leakage current, and forward voltage drop. The datasheet also provides information on the device's surge current capability and its ability to withstand repetitive surge events.