The SMCJ33CA-13: That rating tells you the device can absorb a single surge of that energy without failing short — useful for clamping transients on 24 VDC or 33 VAC rails where the normal operating voltage sits at 33 V. The clamping voltage peaks at 53.3 V, with a breakdown guaranteed between 36.7 V and the clamp. The 28.1 A peak pulse current at the same waveform gives the board designer the numbers to check whether the upstream fuse or PTC clears before the TVS exceeds its single-pulse rating.
DO-214AB SMC — package and board integration
Housed in the DO-214AB (SMC) package, this part is surface-mount and intended for reflow soldering. The large body — relative to SMA or SMB — is sized to handle the thermal dissipation of a 1500 W pulse without lifting the pad or cracking the solder joint.
Active and available — sourcing posture
Sourced to order against your BOM quantity.