Jst xh series 25mm top entry jst b4b xh alfsn this top entry shrouded 25mm headers with 4 ways is from the jst xh series which has been designed specifically to provide high density mounting for a range of miniature electronic equipment the connectors are small with a mounting height of just 98mm yet offer high reliability jst b4b xh alfsn 4 pole top entry xh series p25 mm