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 –40°C to +85°C • 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 MODE OF OSCILLATION FREQUENCY IN MHz M - indicates MHz and decimal point. F = Fundamental Frequency is recorded with minimum 4 significant digits to the right of the "M". FREQUENCY TOLERANCE @ 25°C 1 = ± 10 ppm LOAD CAPACITANCE X = ± 15 ppm A = 10 pF G = 30 pF 2 = ± 20 ppm 3 = ± 30 ppm (standard) B = 13 pF H = 32 pF C = 16 pF J = 9 pF D = 18 pF K = 8 pF STABILITY TOLERANCE/TEMPERATURE RANGE E = 20 pF L = 12 pF Over Operating Temperature Range F = 24 pF S = Series (Referenced to 25°C Reading) 1 = ± 10 ppm, -20°C to +70°C X = ± 15 ppm, -20°C to +70°C Example Part Numbers: 2 = ± 20 ppm, -20°C to +70°C 425F35E014M3181 3 = ± 30 ppm, -20°C to +70°C 425FX9A050M0000 4 = ± 40 ppm, -20°C to +70°C 5 = ± 50 ppm, -20°C to +70°C (standard) 6 = ± 20 ppm, -40°C to +85°C 7 = ± 30 ppm, -40°C to +85°C Custom performance characteristics are available upon request. 8 = ± 40 ppm, -40°C to +85°C Use form C052 to detail non-standard parameters. 9 = ± 50 ppm, -40°C to +85°C 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 ٠ ٠ ٠ CTS Electronic Components, Inc. ٠ 171 Covington Drive ٠ Bloomingdale, IL 60108 ٠ ٠ ٠ ٠ ٠ ٠ www.ctscorp.com ٠ ٠ ٠

Model 425 2.5x2.0mm Low Cost Surface Mount Crystal ELECTRICAL CHARACTERISTICS PARAMETER VALUE Operating Mode Fundamental Crystal Cut AT-Cut Frequency Range 16.0 MHz to 54.0 MHz ± 30 ppm Standard Frequency Tolerance @ 25°C (± 10 ppm, ±15 ppm and ± 20 ppm Available) ers Frequency Stability Tolerance ± 50 ppm Standard met (Operating Temperature Range, Referenced to 25°C Reading) (± 10 ppm, ±15 ppm, ± 20 ppm, ± 30 ppm and ± 40 ppm Available) al Para Operating Temperature Range -2(-04°0C°C t oto ++7805°°CC ASvtaailnadblaer)d c ctri Storage Temperature Range -40°C to +85°C Ele Equivalent Series Resistance See ESR Table Load Capacitance or Resonance Mode See Ordering Information Shunt Capacitance (C ) 5.0 pF Maximum 0 Drive Level 10 µW Typical, 100 µW Maximum Aging @ 25°C ± 3 ppm/year maximum Reflow Condition, per JEDEC J-STD-020 +255°C ± 5°C, 10 Seconds Maximum EQUIVALENT SERIES RESISTANCE TABLE FREQUENCY RANGE MODE of OSCILLATION ESR Maximum 16.00 MHz - 19.999 MHz Fundamental 100 Ohms 20.00 MHz - 29.999 MHz Fundamental 80 Ohms 30.00 MHz - 39.999 MHz Fundamental 80 Ohms 40.00 MHz - 54.000 MHz Fundamental 60 Ohms MECHANICAL SPECIFICATIONS PACKAGE DRAWING M ARKING INFORMATION ( 2.50 ±0.10 ) 0.098 ±0.004 1. XX.XX – Frequency in MHz. Top View #4 #3 2. C – CTS and Pin 1 identifier. 3. ** – Manufacturing Site Code. 4. D – Manufactured Date Code. See Table I for ( 2.00 ±0.10 ) XX.XX codes. 0.079 ±0.004 5. Complete CTS part number, frequency value and C**D date code information must appear on reel and box labels. #2 #1 #2 ( 0.65 )MAX 0.026 SUGGESTED SOLDER PAD GEOMETRY ( 0.725 ) ( 0.675 ) 0.039 [1.00] 0.029 0.027 1 2 0.035 [0.90] Bottom View ( 0.700 ) 4 3 0.028 4 3 0.061 [1.55] ( MM ) Key: Inch ( 1.625 ) 0.064 1 2 Notes: 1. Termination pads (e4), barrier-plating is nickel (Ni) with gold (Au) flash plate. 0.073 [1.85] Key:[Imncmh] 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 Rev. B ٠ ٠ ٠ CTS Electronic Components, Inc. ٠ 171 Covington Drive ٠ Bloomingdale, IL 60108 ٠ ٠ ٠

Model 425 2.5x2.0mm Low Cost Surface Mount Crystal TABLE I MONTH JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR 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 TAPE AND REEL INFORMATION DIMENSIONS IN MILLIMETERS 11.50 1.75 Ø13 Ø1.55 4.00 4.00 1.75 1.55 120° 8.00 2.70 Ø60 Ø178 2.25 Ø23 DIRECTION OF FEED Device quantity is 3,000 pieces mimimum per 178mm reel. ENVIRONMENTAL SPECIFICATIONS Temperature Cycle: 400 cycles from –55°C to +125°C, 10 minute dwell at each temperature, 1 minute transfer time between temperatures. Mechanical Shock: 1,500g’s, 0.5mS duration, ½ 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 +125°C 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 +260°C peak, 10 seconds maximum. High Temperature Operating Bias: 2,000 hours at +125°C, disregarding frequency shift. Frequency Aging: 1,000 hours at +85°C, maximum ±5 ppm shift. Insulation Resistance: 500M Ohms @ 100V ±15V . DC DC Moisture Sensitivity Level: Level 1 per JEDEC J-STD-020. Document No. 008-0332-0 Page 3 - 3 Rev. B ٠ ٠ ٠ CTS Electronic Components, Inc. ٠ 171 Covington Drive ٠ Bloomingdale, IL 60108 ٠ ٠ ٠

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: C TS: 425F35B016M0000 425F35B040M0000 425F35B020M0000 425F35B027M0000 425F35B024M0000 425F35B030M0000 425F35B025M0000 425F11A016M0000 425F11A018M4320 425F11A019M2000 425F11A019M6608 425F11A020M0000 425F11A024M0000 425F11A024M5760 425F11A025M0000 425F11A026M0000 425F11A027M0000 425F11A028M6363 425F11A030M0000 425F11A032M0000 425F11A036M0000 425F11A040M0000 425F11A048M0000 425F11K016M0000 425F11K018M4320 425F11K019M2000 425F11K019M6608 425F11K020M0000 425F11K024M0000 425F11K024M5760 425F11K025M0000 425F11K026M0000 425F11K027M0000 425F11K028M6363 425F11K030M0000 425F11K032M0000 425F11K036M0000 425F11K040M0000 425F11K048M0000 425F22A016M0000 425F22A016M3676 425F22A016M3840 425F22A018M4320 425F22A019M2000 425F22A020M0000 425F22A022M1184 425F22A024M0000 425F22A024M5760 425F22A025M0000 425F22A027M0000 425F22A030M0000 425F22A040M0000 425F22A048M0000 425F35E016M0000 425F35E020M0000 425F35E024M0000 425F35E025M0000 425F35E030M0000 425F35E040M0000 425F39B016M0000 425F39B020M0000 425F39B024M0000 425F39B025M0000 425F39B027M0000 425F39B030M0000 425F39B040M0000 425F39E016M0000 425F39E020M0000 425F39E024M0000 425F39E025M0000 425F39E027M0000 425F39E030M0000 425F39E040M0000 425F35E027M0000 425F16A032M0000 425F37B016M0000 425F27C028M6360 425F35E026M0000