The ATC 531Z Series from American Technical Ceramics is a RF Capacitor with Capacitance 100 nF, Frequency 16 KHz to 30 GHz, Dielectric Strength 250% of Rated Voltage, Insertion Loss 0.5 dB, Voltage (WVDC) 16 V. Tags: Ceramic Capacitors, MLCC. More details for ATC 531Z Series can be seen below.