Fischer smd female header low profile fork contact 254 pitch square 0635mm pin fischer elektronik bl lp 5 smd 20s fischer bl lp 5 smd 20 s female header vertical low profile fork contact arranged 1x20 with 254mm pitch and selective gold plated plated contacts fischer bl lp 5 smd 20 s low profile female header 1x20 vertical 254mm gold