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,±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. Frequency is recorded with minimum 4 significant digits to the right of the "M". F = Fundamental FREQUENCY TOLERANCE @ 25°C LOAD CAPACITANCE 1 = ± 10 ppm 2 = ± 20 ppm 3 = ± 30 ppm (standard) X = ± 15 ppm 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 25°C Reading) 1 2 3 4 5 6 7 8 9 = = = = = = = = = ± ± ± ± ± ± ± ± ± 10 20 30 40 50 20 30 40 50 ppm, ppm, ppm, ppm, ppm, ppm, ppm, ppm, ppm, -20°C -20°C -20°C -20°C -20°C -40°C -40°C -40°C -40°C to to to to to to to to to +70°C +70°C +70°C +70°C +70°C (standard) +85°C +85°C +85°C +85°C Document No. 008-0332-0 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. Contact your local CTS Representative or CTS Customer Service for assistance. Page 1 - 3 Rev. A 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 Fundamental AT-Cut 16.0 MHz to 54.0 MHz ± 30 ppm Standard Operating Mode Crystal Cut Frequency Range Electrical Parameters Frequency Tolerance @ 25°C (± 10 ppm, ±15 ppm and ± 20 ppm Available) Frequency Stability Tolerance ± 50 ppm Standard (± 10 ppm, ± 20 ppm, ± 30 ppm and ± 40 ppm Available) (Operating Temperature Range, Referenced to 25°C Reading) -20°C to +70°C Standard Operating Temperature Range (-40°C to +85°C Available) Storage Temperature Range Equivalent Series Resistance Load Capacitance or Resonance Mode Shunt Capacitance (C0) Drive Level Aging @ 25°C Reflow Condition, per JEDEC J-STD-020 -40°C to +85°C See ESR Table See Ordering Information 5.0 pF Maximum 10 µW Typical, 100 µW Maximum ± 3 ppm/year maximum +255°C ± 5°C, 10 Seconds Maximum EQUIVALENT SERIES RESISTANCE TABLE FREQUENCY RANGE 16.00 MHz - 19.999 MHz 20.00 MHz - 29.999 MHz 30.00 MHz - 54.000 MHz MODE of OSCILLATION Fundamental Fundamental Fundamental ESR Maximum 120 Ohms 100 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 ٠ ٠ ٠ CTS Electronic Components, Inc. ٠ 2 Key: 0.073 [1.85] Page 2 - 3 171 Covington Drive [mm] Inch Rev. A ٠ Bloomingdale, IL 60108 ٠٠٠ 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 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 @ 100VDC ±15VDC. Moisture Sensitivity Level: Level 1 per JEDEC J-STD-020. QUALITY AND RELIABILITY Quality systems meet or exceed the requirements of ISO 9000:2000 standards. Document No. 008-0332-0 ٠ ٠ ٠ CTS Electronic Components, Inc. ٠ Page 3 - 3 171 Covington Drive Rev. A ٠ Bloomingdale, IL 60108 ٠٠٠