The SMEJ20AG/TR13 is a transient voltage suppressor (TVS) diode manufactured by Yageo. This component is designed to protect sensitive electronic circuits from voltage transients caused by phenomena such as lightning strikes, inductive load switching, and electrostatic discharge (ESD). It is designed to quickly clamp overvoltage events, diverting excess current away from sensitive components.

Applications

• Power Supplies: Protection for power supplies against voltage surges and transients.
• Industrial Equipment: Used in industrial control systems and automation equipment to protect against transient voltages.
• Telecommunications Equipment: Protects telecommunication lines and equipment from lightning-induced surges.
• Automotive Electronics: Employed in automotive electronic control units (ECUs) for protection against voltage transients and ESD.
• Consumer Electronics: Provides surge protection for various consumer electronic devices.

Features

• Unidirectional Protection: Provides protection against positive voltage transients.
• Surface Mount Package: Designed for automated assembly and efficient use of board space.
• High Surge Capability: Capable of withstanding high surge currents without degradation.
• Low Clamping Voltage: Limits the voltage across the protected circuit during a surge event.
• RoHS Compliant: Complies with the Restriction of Hazardous Substances (RoHS) directive.

Benefits

• Enhanced Circuit Protection: Offers robust protection against voltage transients and ESD.
• Improved System Reliability: Protects sensitive electronic components from damage, increasing overall system reliability.
• Reduced Downtime: Prevents damage from surge events, minimizing downtime and maintenance costs.
• Extended Product Lifespan: Prolongs the lifespan of electronic equipment by protecting it from voltage stresses.
• Simplified Design: Facilitates easy integration into circuit designs with a compact footprint.

Additional Details

The SMEJ20AG/TR13 has a standoff voltage of 20V, meaning that it will not conduct until the voltage exceeds this level. During a surge event, it clamps the voltage to a certain level, known as the clamping voltage. The component has a specified peak pulse power dissipation rating, indicating its ability to handle high-energy surges. It operates over a specified temperature range. For detailed electrical characteristics, surge handling capabilities, and other performance parameters, refer to the manufacturer's datasheet.