Switch Tactile N.O. SPST Round Button PC Pins 0.02A 24VDC 0.5VA 1000000Cycles 4.5N Thru-Hole
TVS Diodes - Transient Voltage Suppressors 400W 27V 10% Unidir

TRACOPOWER TMP-MK 2 Power Supply Accessory, DIN Rail Mounting Kit, TMP 30C, TMP 60C Series
DIODE 400 W, UNIDIRECTIONAL, SILICON, TVS DIODE, PLASTIC, MPG06, 2 PIN, Transient Suppressor