XT49M Vishay Dale Low Profile SMD Type Crystal Units FEATURES Low cost Industry standard Wide frequency range Excellent aging Surface mount Compliant to RoHS directive 2002/95/EC This part is a miniature AT cut strip crystal unit packaged for surface mounting. 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 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 66.999 80 3 overtone 6.000 to 9.999 100 fundamental/AT DIMENSIONS in inches millimeters 0.403 10.24 max. Crystal Unit 0.150 3.8 max. 0.008 0.2 0.177 4.5 0.150 3.8 max. max. max. 0.012 0.3 0.484 0.024 max. 12.3 0.6 0.437 + 0.020/- 0.031 Insulation Base 11.1 + 0.50/- 0.80 0.376 9.55 Crystal Lead 0.081 0.031 0.012 0.185 0.012 2.05 0.8 0.3 4.7 0.3 0.219 5.55 0.201 0.020 5.1 0.5 Solder Pattern Document Number: 35012 For technical questions, contact: frequency vishay.com www.vishay.com Revision: 19-Mar-10 1 XT49M Low Profile SMD Type Crystal Units Vishay Dale ORDERING INFORMATION XT49M R -20 20M e2 MODEL OTR LOAD FREQUENCY/MHz JEDEC LEAD (Pb)-FREE STANDARD blank = standard blank = series R = - 40 C to + 85 C -20 = 20 pF -30 = 30 pF -32 = 32 pF GLOBAL PART NUMBER X T 9M 2 0 A N A 2 0M 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: 35012 2 Revision: 19-Mar-10