SII是日本精工晶振MC-146

MC-146/6.9x1.4*1.40 mm 7M Series SMD Tuning Fork Crystal详细内容

SMD Tuning Fork Crystal  Size: 6.9x1.4*1.40 mm 7M Series SMD Tuning Fork Crystal  Features  ?Plastic molded SMD tuning fork crystal of heat resistance.  ?High precision and high frequency stability.  ?Ultra thin type with height 1.4mm Max.  ?Automatic mounting and reflow soldering.  ?High reliable environmental performance.  ?Applications in PC, gaming equipment, Radio communication, PDA, SmartGrid, etc.  ?RoHS Complaint.  Electrical Specifications  Item /Type .          7M (7M Series SMD tuning fork crystal)  Frequency Range                         32.768 kHz  Load capactiance                 12.5pF  Drive level                         1.0pW Max.  Frequency tolerance                 ±20ppm, or specify  Turnover Temperature                 ±25°C±5°C  Parabolic Coefficient                 (-0.03510.005)*1 OVC2  Operating temperature range         -20~+70°C, ±40~+85°C  Storage temperature range         ±55~+125°C  Aging (at 25°C)                         ±3ppm at first year  Shunting capacitance                 0.8pF Typ.  Equivalent Series Resistance(ESR)              Fundamental  32.768kHz     65 KQ Max.  Remarks 1. Do not connect #2 and #3 to external device and GND.  2. The part of the cylinder inside resin mold may be sometimes exposed, however, it does not affect the  characteristics of crystal unit.  3. Please make sure that there is no pattern under SSP-T7-F on the circuit board.