The 1SMB7.5A 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 switching, and other transient voltage events. The diode is packaged in a small SMB (DO-214AA) package, making it suitable for space-constrained applications.

Applications

• Protection of I/O interfaces
• Protection of VCC bus
• Protection of data lines
• Industrial control systems
• Telecommunication equipment
• Consumer electronics
• Portable devices

Features

• Surface mount SMB (DO-214AA) package
• Stand-off voltage: 7.5V
• Peak pulse power: 600W (10/1000µs waveform)
• Unidirectional configuration
• Low clamping voltage
• Fast response time
• RoHS compliant

Benefits

• Effective transient protection: Protects sensitive components from damaging voltage surges.
• High surge capability: Handles high surge currents without failure.
• Fast response time: Quickly clamps transient voltages, minimizing stress on protected components.
• Small size: The SMB package allows for easy integration into compact designs.
• Easy to use: Requires minimal external components.
• Reliable performance: Provides reliable protection under harsh environmental conditions.

Additional Details

The 1SMB7.5A TVS diode is designed to be connected in parallel with the circuit to be protected. During normal operation, the diode presents a high impedance to the circuit. When a transient voltage exceeds the diode's stand-off voltage, the diode rapidly becomes conductive, clamping the voltage to a safe level and diverting the surge current away from the protected components. The clamping voltage is typically lower than the breakdown voltage of the protected components, ensuring that they are not damaged by the transient voltage. The 1SMB7.5A is a unidirectional device, meaning it is designed to protect against positive voltage transients only. The diode is rated for a peak pulse power of 600W with a 10/1000µs waveform. Operating and Storage Temperature: -65°C to +150°C