The 3SMC51CA is a surface mount transient voltage suppressor (TVS) diode manufactured by Central Semiconductor Corp. It is designed to protect sensitive electronic components from voltage transients induced by lightning, electrostatic discharge (ESD), inductive load switching, and other transient voltage events.

Applications

• Protection of I/O interfaces
• Voltage surge protection in consumer electronics
• Industrial control systems
• Telecom equipment
• Medical devices

Features

• Surface mount SMC package
• Uni-directional and bi-directional configurations available
• Fast response time
• High surge capability
• Low clamping voltage
• RoHS compliant

Benefits

• Provides robust protection against voltage transients, preventing damage to sensitive circuits.
• Fast response time ensures quick clamping of transient voltages, minimizing the risk of overvoltage damage.
• High surge capability allows the device to withstand large transient currents without failure.
• Low clamping voltage limits the maximum voltage seen by protected components, enhancing protection effectiveness.
• Surface mount package simplifies board assembly and reduces board space requirements.

Additional Details

The 3SMC51CA is available in both unidirectional and bidirectional configurations. The bidirectional version provides symmetrical protection for AC signals, while the unidirectional version is suitable for DC circuits. The device's SMC (Surface Mount Code) package allows for efficient heat dissipation. The '51' in the part number indicates a standoff voltage of approximately 51 volts, and 'CA' typically denotes a bidirectional TVS diode.

Technical Specifications (Typical):

• Standoff Voltage (VRWM): 51V
• Breakdown Voltage (VBR): Refer to datasheet for min/max values
• Clamping Voltage (VC): Refer to datasheet for value at specified peak pulse current
• Peak Pulse Power (PPP): 1500W (for a 10/1000µs pulse)
• Operating Temperature: -55°C to +150°C