XT49S Vishay Dale Low Profile Holder Type Crystal Units FEATURES Low cost Industry standard Wide frequency range Excellent aging Compliant to RoHS directive 2002/95/EC This part is a miniature AT cut strip crystal unit with a low profile package. It is with resistance weld. STANDARD ELECTRICAL SPECIFICATIONS PARAMETER SYMBOL CONDITION UNIT MIN. TYP. MAX. Frequency range F MHz 3.579545 - 66.000 O Frequency tolerance F/F at 25 C ppm - 30 - + 30 O Temperature stability T ref. to 25 C ppm - 50 - + 50 C Operating temperature range T C - 10 - + 70 OPR Storage temperature range T C - 55 - + 125 STG Shunt capacitance C pF - - 7 0 Load capacitance C customer specified pF 10 - series L Insulation resistance I 100 V M 500 - - R DC Drive level D W - 100 500 L Aging (first year) Fa at 25 C, per year ppm - 5 - + 5 EQUIVALENT SERIES RESISTANCE (ESR) AND MODE OF VIBRATION (MODE) FREQUENCY RANGE (MHz) MAX. ESR () MODE FREQUENCY RANGE (MHz) MAX. ESR ()MODE 3.579 to 3.999 200 fundamental/AT 10.000 to 13.999 80 fundamental/AT 4.000 to 4.999 150 fundamental/AT 14.000 to 39.999 50 fundamental/AT rd 5.000 to 5.999 120 fundamental/AT 40.000 to 66.000 80 3 overtone 6.000 to 9.999 100 fundamental/AT DIMENSIONS in inches millimeters 0.403 10.24 max. 0.150 3.81 max. 0.435 11.05 max. 0.138 3.5 0.183 4.65 max. max. 0.500 12.7 min. 0.192 0.008 0.017 0.002 4.88 0.2 0.43 0.05 Document Number: 35014 For technical questions, contact: frequency vishay.com www.vishay.com Revision: 19-Mar-10 1 XT49S Low Profile Holder Type Crystal Units Vishay Dale ORDERING INFORMATION XT49S R -20 SP 12M e2 MODEL OTR LOAD OPTIONS FREQUENCY/MHz JEDEC LEAD (Pb)-FREE STANDARD blank = standard blank = series blank = standard R = - 40 C to + 85 C -16 = 16 pF SP = spacer -20 = 20 pF standard SL = sleeve -30 = 30 pF -32 = 32 pF GLOBAL PART NUMBER XT 9 S 2 0 A N A 1 2 M MODEL LOAD PACKAGE OPTION FREQUENCY CODE GLOBAL PART NUMBERING XT 9 S 2 0 A N A 4 0 M LOAD PACKAGE MODEL NUMBER OPTIONS FREQUENCY CAPACITANCE CODE XT9S = XT49S 18 = 18 pF Tape and reel NA = no additional 4M = 4 MHz XT9M = XT49M 20 = 20 pF G = RF5 (XT9S) options 40M = 40 MHz XTU1 = XTUM1 NL = series H = RF7 (XT9M) RR = extended 100M = 100 MHz to be specified by temperature 12M288 = 12.288 MHz customer Bulk of - 40 C to + 85 C M is used as A = B04 Contact factory for decimal place (all models) all other options holder in frequency Example: XT49S-20 40M X T 36 20 A 1 2 M PACKAGE MODEL NUMBER LOAD CAPACITANCE FREQUENCY CODE XT46 = XT46C 18 = 18 pF Tape and reel 4M = 4 MHz XT36 = XT36C 20 = 20 pF H = RF7 40M = 40 MHz NL = series 100M = 100 MHz to be specified by Bulk 12M288 = 12.288 MHz customer A = B04 M is used as (all models) decimal place holder in frequency Example: XT36C-20 12M www.vishay.com For technical questions, contact: frequency vishay.com Document Number: 35014 2 Revision: 19-Mar-10