SM04B-SRSS-TB(LF)(SN)

SM04B-SRSS-TB(LF)(SN) is the 4-position side-entry surface-mount header of JST's SH series — 1.0 mm pitch — as listed in JST's SH series catalogue at 3,000 pieces per reel for this side-entry (SM) form — the 1,500-piece figure in the same table belongs to the top-entry BM rows and must not be carried across: copper-alloy tin-plated board contacts, heat-resistant natural (ivory) PA housing, with reinforcing tabs. The series ratings from the same catalogue: current 1.0 A AC/DC (at AWG #28), voltage 50 V AC/DC, temperature range −25 °C to +85 °C, for wire AWG #32 to #28. The (LF)(SN) suffix is JST's lead-free tin-plating designation and part of the orderable code. The selection point is the board side of the SH system — it mates the SH crimp housings (SHR-04V-S class) in compact devices where a 1.0 mm pitch is the space budget. Selection advice: side-entry orientation is in the code (SM…-TB); a top-entry SH header is a different part, and the 8-position SM08B-SRSS-TB(LF)(SN) also listed here shares everything but the circuit count.