4-Position, 2.50mm Pitch SMT Header for Wire-to-Board
The EM04B-LEXSS-TF: It carries 4 positions on a 0.098" (2.50mm) pitch — the pitch and circuit count define the PCB footprint and the BOM line match. Rated 3 A per circuit when terminated with 22 AWG wire, and 300 V.
Mating Half: LEXR-04V-S Receptacle Housing
This header mates with the JST LEXR-04V-S receptacle housing (4 circuits, 2.50mm pitch). The receptacle accepts crimp terminals — the harness side is built separately and then mated to the board-mounted header. Don't order half a connection: the LEXR-04V-S is the companion part that completes the wire-to-board pair.
The EM04B-LEXSS-TF (4 positions) sits alongside the 2-position EM02B-LEXSS-TF in the same LEX series. Both share the 0.098" (2.50mm) pitch, SMT mounting, tin contacts, and 3 A (22 AWG) rating. No other functional specs change between the two.