Model 425 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) 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 M FREQUENCY IN MHz M - indicates MHz and decimal point. Frequency is recorded with minimum 4 significant digits to the right of the "M". MODE OF OSCILLATION F = Fundamental FREQUENCY TOLERANCE @ 25C 1 = 10 ppm X = 15 ppm 2 = 20 ppm 3 = 30 ppm (standard) LOAD CAPACITANCE A = 10 pF B = 13 pF C = 16 pF D = 18 pF E = 20 pF F = 24 pF STABILITY TOLERANCE/TEMPERATURE RANGE Over Operating Temperature Range (Referenced to 25C Reading) 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 G = 30 pF H = 32 pF J = 9 pF K = 8 pF L = 12 pF S = Series 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 Model 425 2.5x2.0mm Low Cost Surface Mount Crystal ELECTRICAL CHARACTERISTICS PARAMETER VALUE Fundamental AT-Cut 16.0 MHz to 54.0 MHz 30 ppm Standard Operating Mode Crystal Cut Frequency Range Electrical Parameters Frequency Tolerance @ 25C ( 10 ppm, 15 ppm and 20 ppm Available) Frequency Stability Tolerance 50 ppm Standard ( 10 ppm, 15 ppm, 20 ppm, 30 ppm and 40 ppm Available) (Operating Temperature Range, Referenced to 25C Reading) -20C to +70C Standard Operating Temperature Range (-40C to +85C Available) 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 -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 MARKING INFORMATION ( 2.50 0.10 ) 0.098 0.004 ( 2.00 0.10 ) 0.079 0.004 1. 2. 3. 4. 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. Top View #4 #3 #1 #2 XX.XX C**D #2 ( 0.65 ) MAX 0.026 SUGGESTED SOLDER PAD GEOMETRY ( 0.725 ) 0.029 1 0.039 [1.00] ( 0.675 ) 0.027 0.035 [0.90] 2 Bottom View 3 4 ( 0.700 ) 0.028 3 4 0.061 [1.55] Key: ( MM ) Inch ( 1.625 ) 0.064 1 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 CTS Electronic Components, Inc. 2 Key: 0.073 [1.85] Page 2 - 3 171 Covington Drive [mm] Inch Rev. B Bloomingdale, IL 60108 Model 425 2.5x2.0mm Low Cost Surface Mount Crystal TABLE I MONTH YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC M 2001 2005 2009 2013 2017 A B C D E F G H J K L 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 TAPE AND REEL INFORMATION DIMENSIONS IN MILLIMETERS 1.75 11.50 O13 O1.55 4.00 4.00 1.75 1.55 120 8.00 2.70 O60 O178 2.25 O23 DIRECTION OF FEED Device quantity is 3,000 pieces mimimum per 178mm reel. ENVIRONMENTAL SPECIFICATIONS Temperature Cycle: 400 cycles from -55C to +125C, 10 minute dwell at each temperature, 1 minute transfer time between temperatures. Mechanical Shock: 1,500g's, 0.5mS duration, 1/2 sinewave, 3 shocks each direction along 3 mutually perpendicular planes (18 total shocks). Sinusoidal Vibration: 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). Gross Leak: No leak shall appear while immersed in an FC40 or equivalent liquid at +125C for 20 seconds. Fine Leak: Mass spectrometer leak rates less than 2x10-8 ATM cc/sec air equivalent. Resistance to Solder Heat: Product must survive 3 reflows of +260C peak, 10 seconds maximum. High Temperature Operating Bias: 2,000 hours at +125C, disregarding frequency shift. Frequency Aging: 1,000 hours at +85C, maximum 5 ppm shift. Insulation Resistance: 500M Ohms @ 100VDC 15VDC. Moisture Sensitivity Level: Level 1 per JEDEC J-STD-020. Document No. 008-0332-0 CTS Electronic Components, Inc. Page 3 - 3 171 Covington Drive Rev. B Bloomingdale, IL 60108