Clamping performance and pulse rating
The SMBJ6.0CA-13: The 58.3 A peak pulse current capability at that waveform means the device can absorb a substantial transient without failing open or short. The reverse standoff voltage is 6 V — the line voltage the TVS leaves alone during normal operation. That 10.3 V ceiling is what the downstream circuitry sees during the transient; it sets the voltage rating floor for the protected components. The part is explicitly marked as not intended for power line protection — it is designed for signal or low-voltage DC rail clamping where the 6 V standoff and 10.3 V clamp are appropriate.
Package, temperature range, and board fit
The supplier device package is also designated SMB, so the soldering pad layout matches the JEDEC SMB outline. Available in Tape & Reel (TR) or Cut Tape (CT) — the TR option suits automated pick-and-place for volume production; CT works for prototyping or low-volume kitting.