Littelfuse, Inc. Solid State Relays PHS120A20

The PHS120A20 is a single-function solid-state relay for phase control of AC loads, rated for 120 V ac input and 20 A steady state output with a 200 A non-repetitive inrush current. It features surface mounting with a single #10 (M5 x 0.8) screw, dimensions of 50.8 mm x 50.8 mm x 38.4 mm, and 0.25 in. (6.35 mm) male quick connect terminals. The relay requires an external 100 kΩ, 1 W potentiometer for voltage adjustment and must be mounted to a metal surface using heat sink compound. It operates from -20 °C to 60 °C, meets UL508 standards with UL Recognized File E57310, and has a dielectric breakdown of ≥2000 V RMS and insulation resistance of ≥100 MΩ.