MODEL XT49S Vishay Dale Quartz Crystals Low Profile 3.5MHz to 67MHz FEATURES * Low profile. Hermetically sealed. Tape and reel option. STANDARD ELECTRICAL SPECIFICATIONS FREQUENCY MODE OF ESR Max. RANGE (MHz) VIBRATION (Ohms) 3.5 - 3.799 AT Fundamental 180 3.8-4.0 AT Fundamental 150 4.001 - 5.0 AT Fundamental 120 5.001 - 6.0 AT Fundamental 80 6.001 - 8.0 AT Fundamental 70 8.001 - 10.0 AT Fundamental 60 10.001 - 12.0 AT Fundamental 50 12.001 - 25.0 AT Fundamental 40 25.001 - 50.0 BT Fundamental 40 30.001 - 67.0 AT 3rd Overtone 80 STANDARD SPECIFICATIONS Operating Temperature: - 20C to + 70C (- 40C to + 85C optional for AT Mode). Frequency Range: 3.5MHz to 67MHz. Frequency Tolerance: + 30PPM @ + 25C + 3C. Temperature Stability: + 50PPM for AT Mode, + 100PPM for BT Mode. Storage Temperature: - 40C to + 85C. Mode of Vibration: AT Fundamental, BT Fundamental or AT 3rd Overtone. Load: Series resonant or 16pF, 20pF, 30pF or 32pF parallel load. Drive Level: 20 microwatt to 5 milliwatt. Shunt Capacitance: 7pF maximum. Seal: Resistance weld. DIMENSIONAL CONFIGURATIONS [Numbers in brackets indicate millimeters] MODEL HEIGHT - : 197 [5.0 493 [11 5] _> a Dg : xT49S 138 [3.5] Height Max, XT49SL | .100 [2.5] f 4 | .787 + .039 1 [20.0 + 1.0] ] | i > | (|e 192 + .008 .018 + ,002 - .001 [4.88 + 0.2] [0.45 + 0.05 - 0.03] HOW TO ORDER XT49S L R -20 TR SP 12M MODEL MODE PACKAGE HEIGHT OTR LOAD PACKAGING OPTIONS FREQUENCY/MHz | | | Blank = Fundamental Blank = - 20 to + 70C Blank = Bulk OT = Overtone R =- 40C to + 85C - TR = Tape and Reel Blank = Series - 16 = 16pF - 20 = 20pF Blank = Standard Blank = 3.5mm H - 30 = 30pF SP = Spacer L=2.5mmH - 32 = 32pF CT = Cut Leads Vishay Dale E. Hwy 50, PO Box 180, Yankton, SD 57078-0180 Phone (605) 665-9301 Fax 605-665-1627 Internet www.vishay.com 2 Major Vishay Brands Dale Draloric Foil Resistors Lite-On PSC * Measurements Group * Roederstein Sfernice Siliconix Sprague Telefeinken Thin Film Vitramon