document no. 008-0360-0 page 1- 2 rev. b www.ctscorp.com model 445 surface mount quartz crystal features ? standard 5.0mm x 3.2mm glass seal package ? fundamental crystal design ? frequency range 10 ? 50 mhz ? frequency tolerance, 20 ppm standard [other tolerances available] ? frequency stability, 30 ppm standard [other stabilities available] ? operating temperature to -40c to +85c ? tape & reel packaging standard, eia-481 ? rohs compliant in accordance with eu directive 2005/95/ec - lead-free termination finish - exemption 5 for pb in glass material used for cover attach applications model 445 is a low cost device used in a wide range of commercial applications including notebooks, computer peripherals, audi o visual, bluetooth and usb interfaces , pdas, and automotive electronics. ordering information example part numbers: 445c23d14m31818 445i23e14m31818 m 1 = 10 ppm 1 x = 15 ppm 2 2 = 20 ppm 3 = 30 ppm (std) 5 = 50 ppm 2] only available with temperature range codes "w", "a" and "c". 445 load capacitance a = 10 pf b = 13 pf c = 16 pf d = 18 pf e = 20 pf f = 24 pf g = 30 pf h = 32 pf j = 9 pf k = 8 pf l = 12 pf s = series frequency in mhz m - indicates mhz and decimal point. 3 stability over temperature frequency tolerance @ 25c operating temperature range 2 = 20 ppm (standard) 3 = 30 ppm w = 0c to +50c a = -10c to +60c c = -20c to +70c (standard) i = -40c to +85c (standard) not all performance combinations and frequencies may be available. contact your local cts representative or cts customer service for availability. 3] frequency is recorded with two leading digits before the ?m? and 5 significant digits after the ?m? (including zeros). 1] only available with temperature range codes "w" and "a". packaging information device quantity is 1,000 pieces minimum per 180mm reel. dimensions in millimeters direction of feed 3.5 5.40 12.0 8.0 4.0 ?1.50 1.75 1.95 ?21.4 ?180 ?60 120 ?13.5 17.5 2.0
document no. 008-0360-0 page 2 - 2 rev. b model 445 quartz crystal electrical characteristics parameter fre q uenc y ran g e o p eratin g mode cr y stal cut fre q uenc y tolerance @ +25c fre q uenc y stabilit y tolerance (operating temperature range, referenced to 25c reading) 0c to +50c - 10c to +60c -20c to +70c - 40c to +85c 10 mhz - < 12 mhz 100 ohms 12 mhz - < 16 mhz 50 ohms 16 mhz - < 30 mhz 40 ohms 30 mhz - < 50 mhz 30 ohms load ca p acitance or resonance mode shunt capacitance (c 0 ) drive level a g in g @ +25c stora g e tem p erature ran g e v alue equivalent series resistance [maximum] see ordering information 5.0 pf typical, 7.0 pf maximum operating temperature ranges electrical parameters 10 mhz to 50 mhz fundamental at-cut 20 ppm, 30 ppm 10 ppm, 15 ppm, 20 ppm, 30 ppm, 50 ppm -40c to +85c 10 w min., 100 w typ., 300 w max. 3 ppm/yr typical mechanical specifications package drawing m445 cdxxx table i ? date code 2001 2005 2009 2013 2017 a b c d e f g h j k l m 2002 2006 2010 2014 2018 n p q r s t u v w x y z 2003 2007 2011 2015 2019 a b c d e f g h j k l m 2004 2008 2012 2016 2020 n p q r s t u v w x y z month jan feb mar dec year aug sep oct nov apr may jun jul notes 1. complete cts part number, frequency value, date code and manufacturing site code information must appear on reel and carton labels. 2. termination pads (e4); barrier plating is nickel [ni] with gold [au] flash plate. 3. reflow conditions per jedec j-std-020; 260c maximum, 10 seconds. marking information 1. m445 - cts model series. 2. c ? cts. 3. d ? date code. see table i for codes. 4. xxx ? frequency code. 120 = 12.00 143 = 14.31818 200 = 20.00 245 = 24.5760 270 = 27.00 130 = 13.00 160 = 16.0000 240 = 24.00 250 = 25.0000 300 = 30.00 frequency code suggested solder pad geometry
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