1.5 kW peak pulse in a DO-214AA footprint
The 1.5SMB20A: That rating means it absorbs a 54.9 A surge and clamps it to 27.7 V max, protecting downstream 17.1 V rails from transients in telecom and industrial power interfaces. Packaged in a DO-214AA (SMB) surface-mount case, it fits standard pick-and-place assembly and reflow profiles.
The 17.1 V reverse standoff voltage (V_RWM) is the DC operating level where the diode is effectively off, drawing negligible leakage. That 27.7 V clamp is the key number for the downstream regulator or IC's abs-max rating. For shorter pulses (8/20 µs), the peak power capability is significantly higher, but the datasheet's derating curve governs the actual safe operating area at elevated temperatures.
Active production and sourcing posture
Sourced through franchised and independent distribution channels.