The SMAJ170CA-TP is a Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Components (MCC). It is designed to protect sensitive electronic equipment from voltage transients induced by electrostatic discharge (ESD), lightning strikes, and inductive switching. It is packaged in a compact SMA (DO-214AC) 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 SMA 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 SMAJ170CA-TP has a stand-off voltage of 170V. It is a bidirectional TVS diode, indicated by the CA suffix. The peak pulse power dissipation is typically rated at 400W 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.