The SMF3.3.TC is a transient voltage suppressor (TVS) diode manufactured by Semtech Corporation. It's designed to protect sensitive electronic components from voltage transients induced by electrostatic discharge (ESD), electrical fast transients (EFT), and lightning surge. This device offers robust protection in a compact surface-mount package.

Applications

• Cellular phones: Protecting sensitive ICs from ESD events during handling and usage.
• Portable devices: Ensuring reliable operation of devices like tablets, MP3 players, and digital cameras against voltage spikes.
• Wearable electronics: Protecting wearable devices such as smartwatches and fitness trackers from ESD and other transient threats.
• Set-top boxes: Safeguarding the internal circuitry of set-top boxes from voltage surges.
• Networking equipment: Protecting network interfaces like Ethernet ports from transient voltages.

Features

• Low clamping voltage: Minimizes the voltage stress on protected components.
• Fast response time: Reacts quickly to transient events, diverting the surge current away from sensitive circuitry.
• Surface-mount package: Allows for easy integration into densely populated circuit boards.
• RoHS compliant: Meets environmental regulations regarding hazardous substances.
• Low leakage current: Reduces power consumption and improves system efficiency.

Benefits

• Enhanced system reliability: Protects against ESD, EFT, and surge events, preventing system failures and downtime.
• Extended product lifespan: Reduces the risk of damage to sensitive components, prolonging the operational life of the product.
• Reduced warranty costs: Minimizes field failures and warranty claims related to transient voltage damage.
• Improved system performance: Ensures stable operation of electronic devices even in harsh environments with frequent transient events.
• Simplified design: Easy to integrate into existing circuit designs due to its compact size and standard footprint.

Additional Details

The SMF3.3.TC has a typical breakdown voltage of 3.65V and a maximum clamping voltage of 6.0V at a specified peak pulse current. It features a peak pulse power dissipation of 200W for an 8/20µs pulse. The device is available in an SOD-323 package. Its small size and high surge capability make it ideal for protecting space-constrained and sensitive electronic equipment. It is also suitable for protecting data lines and I/O ports.