Crystal Units Surface Mount Type: Tuning Fork ST3215SB 3.2×1.5mm for Consumer/ Mobile Equipment Features How to Order ST3215SB 32768 □□ □ □ □ □□ • Small, Low Profile • Ceramic Package • Pb Free • Reflow Compatible ① Applications ③ ④⑤⑥ ⑦ ① Series ② Frequency ③ Load Capacitance ④ Frequency Stability H5 • Consumer/ Mobile Equipment ② 12.5 pF 32.768kHz H ±20×10-6 ⑤Operating Temp. Range ⑥Frequency Temp. Stability P -40 to +85°C W ±200×10-6 ⑦ Individual Specification... Std.Spec. as “AA” Pb Free RoHS Compliant Specifications Item Symbol Nominal Frequency f_nom Frequency Tolerance Specification Units 32.768 kHz f_tol ±20 ×10-6 Turnover Temperature Ti +25±5 Parabolic Coefficient B -0.04 max. Motional Resistance R1 70 max. k-ohm Motional Capacitance C1 3.7 typ. fF Shunt Capacitance C0 0.9 typ. pF Load Capacitance CL 12.5 pF Drive Level DL 0.1 μW 25°C±3°C °C ×10-6/ °C2 Operating Temp. Range T_use -40 to +85 °C Storage Temp. Range T_stg -55 to +125 °C Frequency Aging f_age ±3 Dimensions Remarks Please contact us ×10-6 Recommended Land Pattern 1.5p0.1 (Unit: mm) (Unit: mm) 0.8p0.1 3.2p0.1 1.7