Switch Push Button N.O./N.C. DPDT Round Plunger 1A 125VAC 28VDC 0.4VA Momentary Contact PC Pins Panel Mount/Through Hole
Switch Push Button N.O./N.C. DPDT Round Plunger 1A 125VAC 28VDC Momentary Contact PC Pins Panel Mount/Through Hole
Transistor Output Optocoupler, 4-Element, 5000V Isolation, PLASTIC, DIP-16

Darlington Output Optocoupler, 2-Element, 5000V Isolation, PLASTIC, DIP-8
Transistor Output Optocoupler, 1-Element, 3750V Isolation, PLASTIC, SOP-4
Switch Push Button N.O./N.C. SPDT Round Plunger 28VAC 28VDC 0.4VA Momentary Contact PC Pins Panel Mount/Through Hole
AC Input-Darlington Output Optocoupler, 2-Element, 5000V Isolation, PLASTIC, DIP-8