The SM350A is a surface mount transient voltage suppressor (TVS) diode manufactured by UNIOHM CORPORATION. It is designed to protect sensitive electronic equipment from voltage transients induced by lightning, ESD, and inductive load switching. The device features a robust construction and excellent surge handling capabilities, making it suitable for a wide array of protection applications.

Applications

• I/O Ports Protection
• Power Supply Protection
• Data Line Protection
• Industrial Control Systems
• Automotive Electronics

Features

• Surface Mount Package
• Unidirectional Configuration
• Peak Pulse Power Dissipation of 400W (10/1000 μs waveform)
• Low Clamping Voltage
• Fast Response Time
• RoHS Compliant

Benefits

• Provides reliable protection against voltage transients, improving system reliability.
• Reduces the risk of damage to sensitive components, lowering repair costs.
• Easy to integrate into existing designs due to its small size and surface mount package.
• Compliant with environmental regulations, ensuring responsible manufacturing.
• Fast response time minimizes the impact of voltage surges on protected circuits.

Additional Details

The SM350A TVS diode has a reverse standoff voltage of 35V and a typical breakdown voltage of around 38.9V. The clamping voltage, when subjected to a peak pulse current, is maintained at a low level to safeguard downstream components. The device's operating temperature range typically spans from -55°C to +150°C. It's imperative to consult the datasheet for accurate specifications, including the peak pulse current capability, leakage current, and junction capacitance. The surface mount package allows for automated assembly, enhancing manufacturing efficiency. Furthermore, proper PCB layout techniques, such as minimizing trace lengths and loop areas, should be employed to maximize the effectiveness of the TVS diode.

The UNIOHM SM350A is an essential component for safeguarding electronic systems against the damaging effects of voltage transients, ensuring long-term reliability and performance.