Y10300011803000PSF is a toroidal joint (joint torique) connector component manufactured by TE Connectivity/Deutsch. This O-ring sealing component is designed for applications requiring reliable fluid or gas containment and pressure sealing in connector assemblies. The product is compliant with EU RoHS Directive 2011/65/EU, EU ELV Directive 2000/53/EC, and China RoHS 2, with low halogen content (Br, Cl, F < 900 ppm) and is BFR/CFR/PVC free. It is commonly used in automotive, industrial, and aerospace connector systems where environmental sealing and long-term reliability are critical requirements.