DS-10Q4 DS-10R DS-10-R DS-10RP DS-10-R-T DS10T DS10-T1N 32.768kHz 12.5pF +/-30ppm DS10-T1N 32.768kHz 8.2pF +/-100ppm DS10-T1N 32.768kHz 8.2pF +/-20ppm DS10-T1N 32.768kHz 8.2pF +/-30ppm