This is a high-precision ceramic capacitor with the following specifications: CAP CER 10PF 3KV SL/GP SMD - it has a capacitance value of 10 pF, tolerance of ±0.5 pF and a voltage rating of 3000V (3kV). The component is designed in a Surface Mount Device (SMD) package with a SL/GP designation, indicating nonstandard dimensions or mounting requirements.