The ATC 100B Series from American Technical Ceramics is a RF Capacitor with Capacitance 0.1 to 1000 pF, Frequency 150 to 1000 MHz, Q Factor 10000, Dielectric Strength 250% of Min V, 120 % of High V, ESR 0.015 to 0.115 Ohms. Tags: Ceramic Capacitors, MLCC. More details for ATC 100B Series can be seen below.