Right-Angle SMT: Board-Edge Cable Exit Without the Z-Height Penalty
Shrouded 4-Wall: Bent-Pin Protection in the Field
For a field-service tech reconnecting a harness, this means fewer fiddly alignments and less risk of damaging the header on a reconnect.
Tin-Plated Contacts: Reliable for Moderate Cycle Duty
If the harness sees quarterly reconnects in a corrosive environment, gold-plated contacts would be a better call, but for indoor equipment this is the standard choice.
How It Stacks Against the 3-Position and 6-Position Siblings
The SM04B-SRSS-TB(LF)(SN) is the 4-position member of the SH/SR series. The 3-position SM03B-SRSS-TB shares the same 1.00 mm pitch, 1 A rating, and right-angle SMT footprint — just fewer circuits. The 6-position SM06B-SRSS-TB(LF)(SN) adds two more positions on the same pitch, so the board footprint scales linearly with position count. All three use the same mating receptacle and terminal family, so a harness built for one can cross to the others by swapping the header.
