QC3CA Series 2.5x3.2 4-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 Speci cations Equivalent Series Resistance (ESR) Frequency Range 12.000 to 48.000MHz (Fundamental) Frequency Range - MHz max. Mode of Operation Frenquency Tolerance at 25C 20 to 50ppm (30ppm standard) 12.000 to 16.000 120 Fundamental Frequency Stability over Temperature Range See Stability vs. Temperature Table 16.000 to 25.000 60 Fundamental Storage Temperature -55 to +125C 25.000 to 30.000 50 Fundamental Aging per Year 5ppm max. 30.000 to 48.000 35 Fundamental 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 C3CA = 2.5x3.2 7 digits including the F = AT-Fund S = Series A = -20 to +70C 2 = 20ppm 2 = 20ppm M = 250pcs Tape&Reel = 4-Pad SMD 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: QC3CA12.0000F12B33R bold letters = recommended standard speci cation QANTEK Technology Corporation Phone: +1 877-227-0440 (tollfree) www.qantek.com Fax: +1 877-227-0440 (tollfree) info qantek.com QC3CA Rev. 0.1QC3CA Series 2.5x3.2 4-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 18B22 G March C September I April D October J 8 C 30 H May E November K 10 D 32 I 16 E S S June F December L Example: First Line: 12.000 (Frequency) Second Line: QA1A (Qantek - January - 2011 - 12 pF) Solder Re ow Pro le Environmental Speci cations 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 speci cations 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 QC3CA Rev. 0.1