The TE 5530843-1 is a dual-readout female edge connector from the Standard Edge II series, built for double-sided PCB edge cards. The trick is the card thickness window: it accepts boards from 0.054" to 0.070" (1.37 mm to 1.78 mm). A standard 0.062" board fits, but a 0.093" power card or a thin 0.031" flex won't seat properly.
Card thickness and gold — the two specs that decide the fit
The card thickness range is 0.054" to 0.070" (1.37 mm to 1.78 mm). The 30.0 µ" gold is a mid-grade thickness.
