XT49M www.vishay.com Vishay Dale Low Profile SMD Type Crystal Units FEATURES Low cost Industry standard Wide frequency range Excellent aging Surface-mount Material categorization: for definitions of compliance please see www.vishay.com/doc 99912 Note Not compatible with vapor phase reflow mounting 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 Insulation Base 0.437 + 0.020/- 0.031 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 Revision: 13-Jan-2020 Document Number: 35012 1 For technical questions, contact: frequency vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000 XT49M www.vishay.com 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 PACKAGE MODEL LOAD 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 XT 3 6 2 0 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 Revision: 13-Jan-2020 Document Number: 35012 2 For technical questions, contact: frequency vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000