The SMBG120CA-E3/5B is a Transient Voltage Suppressor (TVS) diode manufactured by Vishay. It is specifically designed to protect sensitive electronic equipment from voltage transients induced by lightning, inductive load switching, and Electrostatic Discharge (ESD).

Applications

• Protection of sensitive electronic components
• Overvoltage protection in power supplies
• Surge protection in consumer electronics
• Industrial control systems
• Telecommunication equipment
• Medical Devices

Features

• Glass passivated chip junction
• Available in unidirectional and bidirectional configurations
• Excellent clamping capability
• Low incremental surge resistance
• Fast response time: typically less than 1.0 ps from 0 V to VBR minimum
• Typical IR less than 1 μA above 10 V
• AEC-Q101 qualified available
• Meets MSL level 1, per J-STD-020, LF maximum peak of 260 °C
• Plastic package has underwriters laboratory flammability classification 94 V-0

Benefits

• Robust protection against overvoltage transients
• Increases the reliability of electronic systems
• Reduces the risk of component failure due to voltage surges
• Easy to incorporate into circuit designs
• Cost-effective overvoltage protection solution
• High surge capability provides protection against severe transient events

Additional Details

The SMBG120CA-E3/5B has a standoff voltage of 120V and a breakdown voltage of 133V. The 'CA' suffix signifies that it is a bidirectional TVS diode. It is packaged in an SMB (DO-214AA) package. This component is RoHS compliant and designed for surface mounting. Its fast response time is critical for quickly clamping transient voltages and protecting downstream circuitry.