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| Surface Mount Quartz Crystal FEATURES * Standard 2.5x2.0mm Surface Mount Footprint * Stable Frequency Over Temperature and Drive Level * Fundamental Crystal Design * Frequency Range 16 - 54 MHz * Frequency Tolerance, 30 ppm Standard (10 ppm, 15 ppm and 20 ppm available) * Frequency Stability, 50 ppm Standard (10,15,20,30 and 40 ppm available) * Operating Temperature to -40C to +85C * Tape & Reel Packaging, EIA-481-2 Compliant * RoHS/Green Compliant (6/6) Model 425 DESCRIPTION The Model 425 is a ceramic packaged Crystal offering reduced size, ideal for high-density circuit board applications. The Model 425 offers reliable precision and excellent shock performance in wireless telecommunication devices. ORDERING INFORMATION 425 MODE OF OSCILLATION F = Fundamental FREQUENCY TOLERANCE @ 25C 1 = 10 ppm X = 15 ppm 2 = 20 ppm 3 = 30 ppm (standard) STABILITY TOLERANCE/TEMPERATURE RANGE Over Operating Temperature Range (Referenced to 25C Reading) M FREQUENCY IN MHz M - indicates MHz and decimal point. Frequency is recorded with minimum 4 significant digits to the right of the "M". 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 1 = 10 ppm, -20C to +70C X = 15 ppm, -20C to +70C 2 = 20 ppm, -20C to +70C 3 = 30 ppm, -20C to +70C 4 = 40 ppm, -20C to +70C 5 = 50 ppm, -20C to +70C (standard) 6 = 20 ppm, -40C to +85C 7 = 30 ppm, -40C to +85C 8 = 40 ppm, -40C to +85C 9 = 50 ppm, -40C to +85C Example Part Numbers: 425F35E014M3181 425FX9A050M0000 Custom performance characteristics are available upon request. Use form C052 to detail non-standard parameters. Not all performance combinations and frequencies may be available. Contact your local CTS Representative or CTS Customer Service for availability. Document No. 008-0332-0 Page 1 - 3 Rev. B CTS Electronic Components, Inc. 171 Covington Drive Bloomingdale, IL 60108 www.ctscorp.com 2.5x2.0mm Low Cost Surface Mount Crystal Model 425 ELECTRICAL CHARACTERISTICS PARAMETER Operating Mode Crystal Cut Frequency Range Frequency Tolerance @ 25C Electrical Parameters VALUE Fundamental AT-Cut 16.0 MHz to 54.0 MHz 30 ppm Standard ( 10 ppm, 15 ppm and 20 ppm Available) Frequency Stability Tolerance (Operating Temperature Range, Referenced to 25C Reading) 50 ppm Standard ( 10 ppm, 15 ppm, 20 ppm, 30 ppm and 40 ppm Available) Operating Temperature Range Storage Temperature Range Equivalent Series Resistance Load Capacitance or Resonance Mode Shunt Capacitance (C0) Drive Level Aging @ 25C Reflow Condition, per JEDEC J-STD-020 -20C to +70C Standard (-40C to +85C Available) -40C to +85C See ESR Table See Ordering Information 5.0 pF Maximum 10 W Typical, 100 W Maximum 3 ppm/year maximum +255C 5C, 10 Seconds Maximum EQUIVALENT SERIES RESISTANCE TABLE FREQUENCY RANGE 16.00 MHz - 19.999 MHz 20.00 MHz - 29.999 MHz 30.00 MHz - 39.999 MHz 40.00 MHz - 54.000 MHz MODE of OSCILLATION Fundamental Fundamental Fundamental Fundamental ESR Maximum 100 Ohms 80 Ohms 80 Ohms 60 Ohms MECHANICAL SPECIFICATIONS PACKAGE DRAWING ( 2.50 0.10 ) 0.098 0.004 Top View MARKING INFORMATION XX.XX - Frequency in MHz. C - CTS and Pin 1 identifier. ** - Manufacturing Site Code. D - Manufactured Date Code. See Table I for codes. 5. Complete CTS part number, frequency value and date code information must appear on reel and box labels. 1. 2. 3. 4. #4 #3 ( 2.00 0.10 ) 0.079 0.004 XX.XX C**D #2 #1 #2 ( 0.65 ) MAX 0.026 SUGGESTED SOLDER PAD GEOMETRY ( 0.725 ) 0.029 ( 0.675 ) 0.027 0.039 [1.00] 1 4 2 ( 0.700 ) 0.028 0.035 [0.90] 4 3 0.061 [1.55] Key: ( MM ) Inch Bottom View 3 ( 1.625 ) 0.064 Notes: 1. Termination pads (e4), barrier-plating is nickel (Ni) with gold (Au) flash plate. 2. Terminations #2, #4 and the metal lid are connected internally. End user may connect these pins to circuit ground. Document No. 008-0332-0 Page 2 - 3 1 0.073 [1.85] 2 Key: [mm] Inch Rev. B CTS Electronic Components, Inc. 171 Covington Drive Bloomingdale, IL 60108 2.5x2.0mm Low Cost Surface Mount Crystal TABLE I MONTH YEAR 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 JAN A N a n FEB B P b p MAR C Q c q APR D R d r MAY E S e s JUN F T f t JUL G U g u AUG H V h v SEP J W j w OCT K X k x NOV L Y l y DEC M Z m z Model 425 TAPE AND REEL INFORMATION DIMENSIONS IN MILLIMETERS 11.50 O 13 O 1.55 4.00 4.00 1.75 1.55 120 1.75 2.70 8.00 O 60 O 178 2.25 O 23 DIRECTION OF FEED Device quantity is 3,000 pieces mimimum per 178mm reel. ENVIRONMENTAL SPECIFICATIONS Temperature Cycle: Mechanical Shock: Sinusoidal Vibration: Gross Leak: Fine Leak: Resistance to Solder Heat: High Temperature Operating Bias: Frequency Aging: Insulation Resistance: Moisture Sensitivity Level: 400 cycles from -55C to +125C, 10 minute dwell at each temperature, 1 minute transfer time between temperatures. 1,500g's, 0.5mS duration, 1/2 sinewave, 3 shocks each direction along 3 mutually perpendicular planes (18 total shocks). 0.06 inches double amplitude, 10 to 55 Hz and 20g's, 55 to 2,000 Hz, 3 cycles each in 3 mutually perpendicular planes (9 times total). No leak shall appear while immersed in an FC40 or equivalent liquid at +125C for 20 seconds. Mass spectrometer leak rates less than 2x10-8 ATM cc/sec air equivalent. Product must survive 3 reflows of +260C peak, 10 seconds maximum. 2,000 hours at +125C, disregarding frequency shift. 1,000 hours at +85C, maximum 5 ppm shift. 500M Ohms @ 100VDC 15VDC. Level 1 per JEDEC J-STD-020. Document No. 008-0332-0 Page 3 - 3 Rev. B CTS Electronic Components, Inc. 171 Covington Drive Bloomingdale, IL 60108 |
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