The 1.5SMCJ220A_R1_00001 is a unidirectional Zener-based TVS diode in the 1.5SMCJ series — it clamps transients in one direction, making it the right fit for DC rail protection on positive-going spikes. The reverse standoff of 220 V defines the working voltage the diode must hold off during normal operation; anything above that triggers the breakdown window starting at 242 V minimum. The DO-214AB (SMC) package is the standard surface-mount footprint for 1.5 kW-class TVS diodes — the cathode bar on the package marks the direction of protection. Because it is not classified as a power-line protection device, the 1.5SMCJ220A_R1_00001 is suited for secondary protection behind a primary fuse or an upstream bulk TVS — it absorbs residual clamping work that gets past the first stage, not the initial event. The tape-and-reel and cut-tape packaging options cover both high-volume SMT assembly and low-quantity prototyping runs.
Sourcing posture and lifecycle
No pin-compatible successor or second-source cross-reference appears in the ledger for this specific order code, so the BOM line should be validated against the existing approved design before committing to a new source.