The SMCJ12CA-E3 is a Transient Voltage Suppressor (TVS) diode manufactured by Vishay. It is designed to protect sensitive electronic components from voltage transients induced by lightning, electrostatic discharge (ESD), inductive switching, and other transient voltage events. This TVS diode is part of the SMCJ series, known for its robust protection capabilities in a compact surface-mount package.

Applications

• Protection of I/O interfaces
• Automotive electronics
• Industrial control systems
• Power supplies
• Consumer electronics

Features

• Unidirectional and bidirectional versions available
• Glass passivated chip junction
• Excellent clamping capability
• Low incremental surge resistance
• Typical IR less than 1 μA above 10 V
• Fast response time: typically less than 1.0 ps from 0 V to V_BR minimum
• AEC-Q101 qualified
• RoHS compliant

Benefits

• Provides robust protection against transient voltage events, enhancing system reliability.
• Compact surface-mount package saves board space.
• Fast response time ensures quick clamping of transient voltages, preventing damage to protected components.
• AEC-Q101 qualification ensures suitability for automotive applications.
• Low leakage current minimizes power consumption.

Additional Details

The SMCJ12CA-E3 has a standoff voltage of 12 V and a breakdown voltage of approximately 13.3 V to 14.7V. It has a peak pulse power dissipation of 1500 W at 10/1000 μs waveform. The operating junction temperature range is -55°C to +150°C. This Vishay TVS diode utilizes a DO-214AB (SMC) package. It is designed to clamp transient voltages effectively, safeguarding downstream circuits from overvoltage conditions. The 'CA' designation indicates bidirectional capability, meaning it can suppress voltage transients in both polarities. The E3 suffix indicates compliance with RoHS standards. This device is commonly used to protect sensitive electronic equipment in diverse applications from harmful voltage spikes, thereby improving product longevity and performance. The clamping voltage is around 19.9 V.