The SMBJ85CD-M3/I is a Transient Voltage Suppressor (TVS) diode manufactured by Vishay. This component is designed to protect sensitive electronic devices from voltage transients caused by events such as lightning strikes, electrostatic discharge (ESD), and inductive switching.

Applications

• Protection of I/O interfaces
• Overvoltage protection in power supplies
• Surge protection in consumer electronics
• Industrial control systems
• Telecommunications equipment
• Medical equipment

Features

• Glass passivated chip junction
• Bidirectional configuration
• Excellent clamping capability
• Low incremental surge resistance
• Fast response time
• 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

• Provides robust overvoltage protection
• Increases system reliability
• Reduces component failures due to voltage surges
• Easy integration into circuit designs
• Cost-effective protection solution
• High surge capability safeguards against harsh transient environments

Additional Details

The SMBJ85CD-M3/I has a standoff voltage of 85V. The 'CD' suffix likely indicates specific characteristics, possibly related to its clamping voltage or other electrical parameters, and that it is a bidirectional device with dual junctions. It is packaged in an SMB (DO-214AA) package and designed for surface mounting. The 'M3' indicates a particular molding compound and lead finish. It is RoHS compliant, and features a fast response time for quick transient voltage suppression.