We don't sell screw only for cover case DH-**-CV1B. ** stands for number of contact.

The difference is contact plating. ER8-***P-0.8SV-2H :0.76μm gold over 2.54μm nickel    Thick plating is required for communication market. (Bellcore​ specification)  ...

​Yes, through hole reflow is recommended for FX18 series and FX23 series.​​

​No.  Because the maximum operating temperature is 85°C, DF37 series is not recommended in the equipment for automotive.However, the maximum operating temperature of ​FX23 serie...

The connectors with "J" after the series name are connectors for the inspection jig. Example: DF40JC, DF37CJ

It is FH29 series. The contact points are one side due to the internal via hole (through hole). Please refer to the following.

​They are FH62 series, FH63 series and FH67 series. The difference is contact pitch and cable insert direction as follows.FH62 series : 0.25 mm horizontalFH63S series : 0.5 mm ...

The difference is the method of contact processing. 1. Method of contact processing  HR10   : Machined contact  HR10A : Press Contact

The hole size is reduced to stabilize the connector to PCB and prevent connector from mis-position and rotation during mounting process.  Please refer to FX18 Design Guide Line,...

​Please refer to the features in FX20 series catalog.