SMCJ15CA Transient Voltage Suppresor (TVS) Diode SMD Package

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Transient Voltage Suppressor or TVS Diodes are electronic components designed to protect sensitive electronics from high voltage transients. High voltage transients refer to very high voltage inductions that last for a few milliseconds and can damage the components not built to sustain such high voltages. They function by limiting the voltage to a certain level, which is also known as a "clamping device". The p-n junctions have a larger cross-sectional area than those of a normal diode. This allows them to conduct larger currents to the ground without sustaining any damage. TVS Diodes are generally used to protect against electrical overstress such as those induced by lightning strikes, inductive load switching, and Electro-Static Discharge (ESD) associated with the transmission on data lines and electronic circuits.


  • Fast response time: typically less than 1.0ps from 0V to 16.7V min
  • Excellent clamping capability
  • Low inductance
  • Surface mounted applications to optimize board space 


  • Protection of I/O interfaces, Vcc bus, and other vulnerable circuits used in Telecom, Computer, Industrial and Consumer electronic applications.
  • Data lines in areas prone to natural lightning strikes


Model SMCJ15CA
Max. Breakdown Voltage 18.5 V
Reverse Standoff Voltage 15.0 V
Max. Clamping Voltage @ Peak Pulse Current 24.4 V
Max. Peak Pulse Current  61.5 A
Max. Reverse Leakage 1 µA
Operating Temperature -65°C - 150°C
Storage Temperature  -65°C - 175°C
Package SMD
Quantity 750
Country of Origin China

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