The KC2520B series is a miniature 32.768kHz clock oscillator with an AT-Cut blank. By adopting the AT Cut crystal blank to the device, the KC2520B series realized better frequency characteristics comparing to clock oscillators with tuning fork crystals. Initial +/-10ppm and +/-15ppm over -40 to +85°C is available. Current consumption is 80µA typical with 3.3 V. On top of the KC2520B series, the Kyocera lineup features the KC2520M series. The KC2520M series is full Automotive grade with AEC-Q100 compliance. Operating temperature can be stretched to +125°C in KC2520M series. Enable/Disable function is available for both KC2520B and KC2520M series.