Transient suppressor for 16V rails — DO-214AA footprint
Its 17.8V minimum breakdown voltage and 26V clamping at 23.1A peak pulse define the protection window for a 16V supply line.
Voltage ratings and clamping behaviour
The reverse standoff voltage is 16V — the rail voltage below which the diode is effectively non-conducting. Breakdown occurs at 17.8V min, and the clamping voltage is 26V max at the rated peak pulse current of 23.1A. The gap between standoff and clamping defines the margin the downstream circuitry must survive.