The TPSMA18AHE3_A/I is a surface-mount Transient Voltage Suppressor (TVS) diode from Vishay. This device is designed to protect sensitive electronic components from voltage transients induced by lightning, inductive load switching, and Electrostatic Discharge (ESD). It is part of the SMA series, characterized by its compact size and high surge capability.

Applications

• Protection of I/O Interfaces
• VCC bus protection
• Automotive electronics
• Industrial control systems
• Portable electronic devices

Features

• SMA package with low profile
• Excellent clamping capability
• Low incremental surge resistance
• Typical IR less than 1 μA above 12 V
• High temperature soldering guaranteed: 260 °C/10 seconds at terminals
• AEC-Q101 qualified
• Meets MSL level 1, per J-STD-020, LF maximum peak of 260 °C

Benefits

• Provides robust overvoltage protection, enhancing system reliability.
• Compact size allows for use in space-constrained applications.
• AEC-Q101 qualification ensures reliability in automotive applications.
• Reduces the risk of damage from ESD and voltage transients.
• Increases product lifespan by protecting against electrical stress.

Additional Details

The TPSMA18AHE3_A/I has a stand-off voltage of 18V, meaning it will not conduct under normal operating conditions up to 18V. It starts to conduct and clamp the voltage when the voltage exceeds 18V. This TVS diode offers a fast response time to surge events and a high surge current capability. It is designed to safely absorb repetitive surge pulses. The device is RoHS compliant and halogen-free. It is ideal for protecting sensitive equipment from transient threats.