Alps SPPJ Series Push Button Switches Alps SPPJ series of compact horizontal push button switches provide a PCB mounting solution for space-critical applications. The SPPJ series also offers both momentary & latching to ensure your application is covered.
Features and Benefits

2.5 mm travel actuator.
Simple to PCB mount.
Both momentary & latching operations available.
10,000 cycle mean time before failure (MTBF).