1500W peak pulse power in a surface-mount footprint
The 1.5SMC120CAHM3/I: The breakdown voltage range starts at 114V minimum, ensuring the device remains transparent below the rail voltage and only conducts when a transient exceeds the threshold. It is AEC-Q101 qualified, meaning it meets the automotive-grade reliability stress and temperature cycling requirements for under-hood and chassis-mounted electronics.
Package and board integration
The SMC footprint is standard for 1500W-class TVS diodes and mates with common PCB layouts for this power level. The operating junction temperature range spans -65°C to 150°C, covering the full automotive temperature envelope from cold crank to under-hood heat soak. No power line protection is built in — this is a dedicated transient suppressor for signal or DC power bus clamping.
Sourcing and lifecycle posture
The base product number is 1.5SMC120, and the full suffix HM3/I indicates the automotive-grade qualification and packaging variant.