The SM8S14A/2D is a Transient Voltage Suppressor (TVS) diode manufactured by Vishay. It's designed to protect sensitive electronic equipment from voltage transients induced by lightning, inductive load switching, and Electrostatic Discharge (ESD). This device is specifically engineered for high-reliability applications requiring robust surge protection.

Applications

• Automotive electronics
• Telecommunications equipment
• Industrial control systems
• Power supplies
• Motorcycle electronic systems

Features

• 14V Stand-off Voltage
• High surge capability: Typically withstands 6600 W peak pulse power (IPP) at tP = 10/1000 μs
• Excellent clamping capability
• Low incremental surge resistance
• Typical IR less than 1 μA above 12 V
• Meets MSL level 1, per J-STD-020, LF maximum peak of 260 °C
• AEC-Q101 qualified available
• Material categorization: For definitions of compliance please see www.vishay.com/doc?99912

Benefits

• Enhanced Protection: Effectively safeguards sensitive circuits from damaging voltage spikes and surges, improving overall system reliability.
• High Surge Capability: Provides robust protection against high-energy transient events, preventing component failure and downtime.
• Automotive Grade: AEC-Q101 qualification ensures suitability for demanding automotive applications.
• Low Leakage Current: Minimizes power loss in standby mode, improving energy efficiency.
• Compact Size: Surface-mount package allows for efficient use of board space.

Additional Details

The SM8S14A/2D is a unidirectional TVS diode. It operates by clamping the voltage to a safe level when a transient event occurs. The device turns on rapidly, diverting the surge current away from the protected circuitry. This is crucial for preventing damage to sensitive components like microcontrollers, sensors, and communication interfaces.

Technical Specifications:

• Polarity: Unidirectional
• Stand-off Voltage (Vrwm): 14 V
• Breakdown Voltage (Vbr): 15.6 V to 17.2 V
• Clamping Voltage (Vc): 22.7 V
• Peak Pulse Current (Ippm): 29.1 A
• Operating Temperature: -65 °C to +175 °C
• Package: DO-220AA (SM8S)

The /2D suffix indicates tape and reel packaging for automated assembly processes.