SMD Quartz Crystal Unit SC-20T Features ・Ultra thin type (0.35mm) ・Suitable for high density surface mounting ・Excellent shock and heat resistance ・Complete Pb-free ・Complies with EU RoHS directive ・A crystal resonator processed by high reliable photolithographic technology inside Applications Smart card, Wearable, Module, Sub-clock function for a variety of Microcomputer etc. Standard Specifications Item Nominal Frequency Frequency Tolerance Turnover Temperature Parabolic Coefficient Load Capacitance Motional Resistance (ESR) Absolute Max. Drive Level Drive Level Shunt Capacitance Frequency Ageing Operating Temperature Storage Temperature Symbol f_nom f_tol Ti B CL R1 Dlmax. DL C0 f_age T_use T_stg Dimensions (Temperature: 25±2℃, DL;0.1μW) Specifications 32.768kHz ±20×10-6 +25±5℃ Conditions Note Please specify -6 2 (-0.030±10%)×10 /℃ 6pF 12.5pF 75kΩ max. 1.0μW max. 0.1μW typ. 1.3pF typ. -6 ±3×10 -40 +85℃ -55 +125℃ +25±3℃, First Year Piece part basis Internal Lead Connections 2.05±0.1 1.2±0.1 #1 #2 0.35Max Recommended Soldering Pattern 水晶ランドパターン図 #1 #2 1.0 単位: :mm mm Unit #2 1.4 #1 0.7 Unit：mm 1.5 Remark: Please make sure that there is no pattern under SC-20T on the circuit board. Seiko Instruments Inc. Quartz Crystal Sales Department 1-8, Nakase, Mihamaku, Chiba-shi, Chiba 261-8507, Japan Tel : +81-43-211-1207 Fax : +81-43-211-8030 http : //www.sii.co.jp/en/quartz/