Crystal Units with Thermistor Surface Mount Type CT2520DB 2.5×2.0mm for Mobile Communications Features • Reference frequency for telecommunication systems • Reflow compatible • Using ceramic package resulting in high reliability Applications ® • Mobile Communications, Bluetooth , Wireless LAN, GPS RoHS Compliant * Bluetooth® Trademarks are owned by Bluetooth SIG Inc. How to Order CT2520DB 19200 □□ □ □ □ □□ ① ② ① Series ② Frequency ③ Load Capacitance B0 C0 6 pF 7 pF ③ ④⑤⑥ ⑦ ④ Frequency Stability F G — Std. ±10×10-6 Std. ±15×10-6 — ⑤ Operating Temp. Range ⑥ Frequency Temp. Stability FF LJ -20 to +70°C -30 to +85°C ±10×10-6 ±15×10-6 — — ⑦ Individual Specification Packaging (Tape & Reel 12000 pcs./ reel) Table1 Motional Series Resistance Specifications Frequency Range Motional Series Resistance kHz 16000 to 19199kHz 100Ω max. Item Symbol Specification Units Frequency Range f_nom 16000 to 60000 Remarks Overtone Order OT Fundamental ― 19200 to 25999kHz 80Ω max. Load Capacitance CL 7 pF 26000 to 29999kHz 60Ω max. Frequency Stability f_tol ±10 ×10-6 30000 to 60000kHz 50Ω max. Motional Series Resistance R1 Table 1 ohm Drive Level DL 10 μW 25°C±3°C Table 2 Thermistor Resistance 100μW max. Operating Temp. Range T_use -30 to +85 °C Storage Temp. Range T_stg -40 to +105 °C Frequency Temp. Characteristics f_tem ±12 ×10-6 Freq. deviation from the value at 25°C Thermistor Resistance ― Table 2 ohm 25°C Thermistor B-Constant ― Table 3 K Resistance Specification 100kΩ ±1% Table 3 Thermistor B-Constant B-Constant Specification 4250K ±1% 25°C-50°C • Please contact us for other specifications. Dimensions (Unit: mm) 0.95 0.85 #2 0.70 2.50±0.10 4−0.75±0.1 #1 #4 SENSOR #3 HOT #1 HOT #2 GND 0.85 #2 #4 #3 4−0.65±0.1 0.95±0.05 #1 (Unit: mm) #3 2.00±0.10 #4 Recommended Land Pattern CONNECTION (TOP VIEW) 1.00 0.95