1,2: cap 1uF/2100Vac (i.e. 3kV peak), from microwave oven.
3: cap 1uF/2200Vac, but with 10MOhm parallel resistor integrated
=> discharge time constant 10s.
4: diode 6kV peak, min. 0.5A from microwave.
5: kind of double-zener diode, function unknown, possibly
over-voltage protection, from microwave.