The 1-84953-9: This is a 19-position, 1.00 mm pitch FPC connector from the TE 84953 series, top-contact style with a ZIF slide-lock actuator. The 1.00 mm pitch is a common board footprint for signal-density FPC interconnects — it routes easily on two-layer boards without neck-downs. The 0.30 mm FPC thickness is a standard value; if your flex is thicker or thinner, the contact beam won't wipe properly and retention drops.
ZIF slide lock — one hand, no tool
The Zero Insertion Force (ZIF) mechanism means the FPC slides in without force on the contacts — the slide lock then clamps the flex in place. The slide lock is a positive retention feature; in a vibration environment, a half-open lock can let the flex back out, so confirm the lock seats fully. The LCP housing (UL94 V-0) handles lead-free soldering profiles without warping.