What This 4-Pin FFC Connector Does for Your Board
The JST 04FMN-BMT-A-TF(LF)(SN) is a vertical SMD FFC connector from the FMN series, offering 4 positions at 1.00 mm pitch. It accepts 0.30 mm thick FFC cable and terminates via solder to the PCB. The Low Insertion Force (LIF) design reduces pad wear during assembly and rework — a practical benefit when the flex circuit sees multiple insertions over the product life.
The housing is black polyamide (PA6T) with UL94 V-0 flammability rating, suitable for equipment requiring flame-retardant materials inside the enclosure. Phosphor bronze contacts with tin plating provide reliable electrical connection for low-cycle duty.
No pin-compatible direct replacement is listed by JST — this is the active order code for the 4-position, 1.00 mm pitch, vertical SMD FMN connector.
