Product Configuration System kHz Range Crystal Units FC135 A 32.7680K A 5 Frequency Frequency Tolerance@25C Load Capacitance Packaging 32.7680kHz A: +/20ppm (Std for FC135/145) A: 12.5pf Tape & Reel K: In kHz Blank: +/20ppm (Std for FC255) AC: 9.0pf Blank: Bulk D: +/30ppm (Std for FC12M) AG: 7pF 32.7680kHz Crystal Package Type: 3: 250pcs/reel 0: 1000pcs/reel 5: 3000pcs/reel FC135: Ceramic SMD, 3.2 x 1.5 x 0.9mm Height FC145: Ceramic SMD, 4.1 x 1.5 x 0.9mm Height FC255: Ceramic SMD, 4.9 x 1.8 x 0.9mm Height FC12M: Ceramic SMD, 2.05 x 1.2 x 0.6mm Height NOTES: 1) This product configuration guide is applicable only to 32.7680kHz Crystals. For other frequencies, please reference the Standard kHz Crystal Product Configuration System. 2) If you require a load capacitance other than the above listed, please contact your EEA representative for assistance.