SPST High Isolation CATV Switch 5-1000 MHz. M/A-COM’s MASWSS0067 is a GaAs PHEMT MMIC single pole single throw (SPST) switch in a low cost 3 mm FQFP-N 12 lead package. The MASWSS0067 is ideally suited for applications where low control voltage, low insertion loss, high isolation, small size and low cost are required. Typical applications are to replace mechanical relays in CATV systems. This part can be used in all 75 ohm systems operating up to 1.0 GHz. The MASWSS0067 is fabricated using a 0.5 micron gate length GaAs PHEMT process. The process features full passivation for performance and reliability.