The ATC 600F Series from American Technical Ceramics is a RF Capacitor with Capacitance 0.1 to 240 pF, Frequency 500 to 1000 MHz, Q Factor 2000, Dielectric Strength 2.5 x WVDC, ESR 0.07 to 0.084 Ohms. Tags: Ceramic Capacitors, MLCC. More details for ATC 600F Series can be seen below.