QC7CB Series 5x7 2-Pad SMD All Ceramic Crystal Unit Features Applications All ceramic epoxy sealed SMD package High density applications Low in height, suitable for thin equipment Modem, communication and test equipment Tight tolerance and stability available General Specifications Equivalent Series Resistance (ESR) Frequency Range 6.000 to 30.000MHz (Fundamental) Frequency Range - MHz max. Mode of Operation Frenquency Tolerance at 25C 20 to 50ppm (30ppm standard) 6.000 to 8.000 80 Fundamental Frequency Stability over Temperature Range See Stability vs. Temperature Table 8.000 to 30.000 60 Fundamental Storage Temperature -55 to +125C Aging per Year 5ppm max. Load Capacitance C 10 to 32pF and Series Resonance L Shunt Capacitance C 7.0pF max. 0 Equivalent Series Resistance (ESR) See ESR Table Drive Level 100W typ. (500W max) Insulation Resistance (M) 500 at 100Vdc 15Vdc Frequency Stability vs. Temperature Operating Temperature 20ppm 30ppm 50ppm -20 to +70C -40 to +85C standard available Mechanical Dimensions Part Numbering Guide Qantek Nominal Frequency Vibration Operating Temperature Frequency Frequency Package Load Capacitance Packaging Code (in MHz) Mode Range Tolerance Stability Q = Qantek C7CB = 5x7 2-Pad SMD 7 digits including the F = AT-Fund S = Series A = -20 to +70C 2 = 20ppm 2 = 20ppm M = 250pcs Tape&Reel decimal point 12 = 12pF B = -40 to +85C 3 = 30ppm 3 = 30ppm R = 1000pcs Tape&Reel (f.ie. 12.0000) 18 = 18pF 5 = 50ppm 5 = 50ppm 20 = 20pF etc. Example: QC7CB12.0000F12B33R bold letters = recommended standard specification QANTEK Technology Corporation Phone: +1 877-227-0440 (tollfree) www.qantek.com Fax: +1 877-227-0440 (tollfree) info qantek.com QC7CB Rev. 0.3QC7CB Series 5x7 2-Pad SMD All Ceramic Crystal Unit Tape and Reel Dimensions Marking Code Guide Contains frequency, Qantek manufacturing code, production code (month and year) and load capacitance. Month Codes Year Codes Load Capacitance Code in pF January A July G 2010 0 2011 1 2012 2 pF PN Code pF PN Code February B August H 2013 3 2014 4 2015 5 12 A 20 F March C September I 18 B 22 G 8 C 30 H April D October J May E November K 10 D 32 I June F December L 16 E S S Example: First Line: 12.000 (Frequency) Second Line: QA1A (Qantek - January - 2011 - 12 pF) Solder Reflow Profile Environmental Specifications Mechanical Shock MIL-STD-202, Method 213, C Vibration MIL-STD-202, Method 201 & 204 Thermal Cycle MIL-STD, Method 1010, B Gross Leak MIL-STD-202, Method 112 Fine Leak MIL-STD-202, Method 112 All specifications are subject to change without notice. QANTEK Technology Corporation Phone: +1 877-227-0440 (tollfree) www.qantek.com Fax: +1 877-227-0440 (tollfree) info qantek.com QC7CB Rev. 0.3