ELECTROMECHANICAL switches and relays are widely used in systems and c
ircuits that require high-power handling capability, reliability and g
ood RF performance. Electronic switches, usually based on positive-int
rinsic-negative (PIN) diodes, still lag behind the capabilities of ele
ctromechanical switches and relays in some areas. The choice between t
he two technologies can be difficult without a firm understanding of m
echanical switch/relay capabilities.