30V Zener TVS for 24V rail clamping
Its 30V reverse standoff voltage leaves margin for a 24V supply — the clamp activates at 33.3V breakdown minimum and holds the peak pulse to 53.5V at 9.3A. That 500W peak pulse rating in the DO-214AC (SMA) package handles common surge events like inductive kickback or lightning-coupled transients in industrial and automotive environments.
Peak pulse power and clamping behaviour
Rated at 500W peak pulse power per the 10/1000µs waveform, this part absorbs a 9.3A surge before the clamp voltage reaches 53.5V. The 33.3V minimum breakdown ensures the TVS does not conduct during normal 24V operation, only during overvoltage events.
Active lifecycle and ordering code
The base product number is SMAJ30; the /TR13 variant is the lead-free, tape-and-reel version.
Temperature grade and mounting
Surface-mount DO-214AC (SMA) is a standard footprint; the solder pad area under the cathode tab sets the thermal resistance. No special bake-out required for MSL 1-rated parts, but confirm the reel date code if the part has been stored beyond the floor-life label.