Descriptive Code C 221 (IEC 418-4) Rotors and Stators Are precision machined from solid brass extrusion and silver-plated. Stators Soldered to solid brass rivets which are shrink fitted into the ceramic base. Typical Value of Q 1 MHz - 8000; 50 MHz - 6000; 100 MHz - 4000; 200 MHz - 1500 Air Gap 0,20 mm (.008 INCH) Test Voltage 300 V RMS Insulation Resistance >25000 MOhm Torque 1.0 - 5.0 Ncm (1.5/7.0 INOZ) Ceramic Base Steatite, Grad L - 423 or better, silicon impregnated Terminals Fire-tinned, Solder ability Test IEC 28-2-20