1.5SMC16A 16V Unidirectional TVS Diode (1500W, SMC/DO-214AB)

Deliver robust surge suppression for your 12V DC power rails and automotive electronics with the 1.5SMC16A Transient Voltage Suppressor (TVS) diode. In 12V electrical systems—such as automotive circuits, 3S/4S LiPo drone setups, and industrial 12V power distribution networks—charging alternators or battery chargers routinely drive voltages up to 14.4V–15V. Using a lower-rated TVS diode risks premature conduction and thermal failure. Featuring a 16V reverse standoff voltage ($V_{RWM}$), the 1.5SMC16A provides the exact operating margin required to stay completely passive under normal high-charge conditions while acting instantly during sudden overvoltage spikes.

Capable of absorbing an impressive 1500 Watts of peak pulse power ($10/1000\,\mu\text{s}$ waveform), this unidirectional diode safely clamps destructive voltage transients caused by heavy inductive kickbacks from relays, solenoids, or motor load dumps. Housed in the heavy-duty SMC (DO-214AB) surface-mount package, it provides superior thermal mass and energy dissipation, making it an essential guardian for custom vehicle electronics, robotics, and high-power DIY projects.

Key Features:

• Ideal 16V Standoff Voltage ($V_{RWM}$): Perfectly tailored for 12V DC systems and automotive power lines, preventing false triggering when charging voltages reach ~14.4V.

• 1500W Peak Pulse Power: Safely absorbs massive transient energy spikes caused by load dumps and heavy inductive switching.

• Unidirectional Protection: Engineered for DC power supplies, clamping dangerous positive voltage surges while blocking reverse currents.

• Heavy-Duty SMC Package: The robust DO-214AB footprint offers exceptional heat dissipation and durability for high-current applications.

Specifications:

• Part Number: 1.5SMC16A

• Diode Type: Unidirectional TVS Diode / Surge Suppressor

• Reverse Standoff Voltage ($V_{RWM}$): 16.0V

• Breakdown Voltage ($V_{BR}$): 17.8V – 19.7V

• Peak Pulse Power ($P_{PPM}$): 1500W ($10/1000\,\mu\text{s}$)

• Package Type: SMC / DO-214AB (SMD/SMT)