CM21232768DZFT

TUNING FORK CRYSTAL UNIT (SMD • Ceramic Package) CM212 RoHS compliant / Pb free 3000pcs/reel ■ FEATURES 7Tuning fork crystal with in-house ceramic. 7High-density SMD type Ultra-light weight with ultra-miniature packaging. High-stability assured with tight vacuum sealing. 7Most appropriate for portable devices and mobile telecommunications devices. Life-size ■ DIMENSION [mm] ■ SOLDER PAD LAYOUT [mm] 1.2±0.1 2.0±0.1 （0.8） 0.7 1.4 0.6 Max. 0.7 （1.4） 1.0 Internal connection 1.5 1.0 C0.2 0.4 ■ STANDARD SPECIFICATIONS Item Nominal Frequency Frequency Tolerance Model CM212 f0 32.768kHz △ f/f0 ±20ppm at 25˚C Need to specify your requirement CL 12.5pF Operating Temperature Range TOPR −40℃∼＋85℃ Storage Temperature Range TSTR −55℃∼＋125℃ Turnover Temperature TM 25℃±5℃ Temperature Coefficient β −0.04ppm/℃2 Max. Motional (series) resistance R1 90KΩMax. Level of drive DL 0.5μW Max. △ f/f0 ±3ppm Max. C0 1.7pF Typ. Load capacitance Aging (first year) Shunt capacitance Conditions http://cfm.citizen.co.jp/english/product/pr02.html at 25˚C 25℃±3℃