The KAQY212S is a solid state relay produced by Cosmo that meets the EU’s Restriction of Hazardous Substances (RoHS) standards. This device is a Single-in-Line Package (SIP) 4-pin relay, and it features an insulated type, low on-state resistance, and high surge strength. The maximum switching power for this solid state relay is 125W, and the maximum load current and control voltage are 30A and 5V, respectively. The KAQY212S also features a dielectric strength of 2 kV, an operating temperature range of -30 to +85°C, and a dielectric resistance of more than 100MO. This device is designed to provide reliable and efficient switching in applications such as automotive, home appliances, and industrial control.