组合常开+常闭

Combination normally open and normally closed OptoMOS^® relays provide flexible current switching solutions for telecommunications, industrial, security, metering, and medical applications. The semiconductor assemblies include Form-A and Form-B poles that open or close circuits depending on input voltages. 由于这些器件不包含活动零件，因此比磁簧继电器或其他类型的机电继电器更小、效率更高且不易发生故障。