MOMENTARY PUSHBUTTON SWITCH, Single Pole, Single Throw, Normally Open, Black Plunger, 0.4 Amps , 20 Volts AC/DC, Solder terminals. 8631ZBD28631 Series Micro-miniature Pushbutton SwitchesThe 8600 series micro-miniature pushbutton switches are compact and ideal in applications with limited space. Co..