Crydom CX and CMX series solid state relays (SSRs) are commonly used in many commercial and industrial applications, including plastics and packaging machines, professional food equipment, laboratory ovens, theatrical lighting systems, medical, renewable energy systems, and HVAC&R equipment. They are "prime targets" for engineers who are trying to reduce the size of their overall system. This makes the Crydom PCB mount single-in-line packaged (SIP) solid state relays an ideal alternative to discrete or traditional panel mount solutions.

From Crydom: Printed Circuit Board Mount (PCB) Solid-State Relays