Mini Toggle Switches in 4 flavours:
SPDT - Single Pole, Double Throw, have 3 contacts beneath the switch.
- ON-ON is a 2-position switch, where the common is connected to one contact or the other.
- ON-OFF-ON is a 3-position switch - similar to ON-ON, except the centre switch position is OFF, and no circuit is made to either contact.
DPDT - Double Pole, Double Throw, have 6 contacts beneath the switch, and can be thought of as 2 x SPDT switches operating together from a single mechanism.
- ON-OFF-ON is a 3-position switch, where the centre switch position is OFF, and no circuit is made to either contact.
- ON-ON-ON is also a 3 position switch, however the centre switch position makes a circuit with both A and B contacts.