How this 2-position header compares to the 3-position sibling
The SM02B-ZESS-TB(LF)(SN) is electrically and mechanically identical to the SM03B-ZESS-TB(LF)(SN) — same 1.50 mm pitch, same 2 A/100 V rating, same tin plating, same locking ramp — except for the position count: 2 circuits vs 3 circuits. If your BOM calls for 2 positions, this is the correct part; the 3-position version is a different order code and won't fit a 2-position footprint.
