The SMAJ188A-M3/5A is a surface-mount transient voltage suppressor (TVS) diode manufactured by Vishay. It is designed to protect sensitive electronic components from voltage transients induced by events such as electrostatic discharge (ESD), electrical fast transients (EFT), and lightning surges.

Applications

• DC Power Supply Protection
• Signal line protection
• I/O Interface Protection
• Data line protection
• Microcontroller Protection
• Protection of Sensitive Equipment

Features

• Surface Mount SMA Package
• Unidirectional Configuration
• Glass passivated chip junction
• Available in unidirectional configurations
• Excellent clamping capability
• Low incremental surge resistance
• Fast response time: typically less than 1.0 ps from 0 V to VBR minimum
• Meets MSL level 1, per J-STD-020, LF maximum peak of 260 °C
• AEC-Q101 qualified

Benefits

• Provides robust overvoltage protection, preventing damage to downstream components.
• Fast response time ensures rapid clamping of transient voltages.
• Surface mount package allows for easy integration into automated assembly processes.
• High surge capability enables reliable protection against high-energy transients.
• Increases the reliability and lifespan of electronic equipment by mitigating the effects of transient voltage events.

Additional Details

The SMAJ188A-M3/5A has a standoff voltage of 188V and a peak pulse power of 400W. It is RoHS compliant and halogen-free. The device operates over a wide temperature range, making it suitable for various environments. The unidirectional configuration provides protection for DC circuits. Its compact SMA package allows for efficient board space utilization.

The device's glass-passivated junction contributes to its high reliability and stable electrical characteristics. This TVS diode is designed to meet stringent industry standards, ensuring consistent performance and long-term reliability in demanding applications. The M3/5A suffix indicates specific packaging and material requirements, further ensuring quality and traceability.