What the 1.5SMCJ22CA does and where it fits
The 1.5SMCJ22CA is a unidirectional TVS (Transient Voltage Suppressor) diode — the 'CA' suffix marks bidirectional channel capability per the listing, which is confirmed by the single bidirectional-channel entry in the spec record. The 1500 W peak pulse rating positions this part in the mid-range of the 1.5SMCJ series — enough for secondary protection on data lines and low-power control rails, not a primary bus protector on a 100 A supply.
Package and board-level fit
The SMC/DO-214AB package is the standard large-body SMA variant — the wider leadframe than a plain SMA gives better thermal path to the board pad. Surface-mount termination means reflow assembly is the primary flow; confirm the landing pattern matches the SMC footprint and that the cathode bar marks the polarity direction before reflow — on a unidirectional TVS the polarity is not reversible without circuit consequence.
Sourcing and lifecycle posture
The part is confirmed active under the Diotec Semiconductor brand.