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 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. FREQUENCY TOLERANCE 25C LOAD CAPACITANCE 1 = 10 ppm X = 15 ppm A = 10 pF G = 30 pF 2 = 20 ppm B = 13 pF H = 32 pF 3 = 30 ppm (standard) 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 25C Reading) 1 = 10 ppm, -20C to +70C Example Part Numbers: X = 15 ppm, -20C to +70C 425F35E014M3181 2 = 20 ppm, -20C to +70C 425FX9A050M0000 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 Custom performance characteristics are available upon request. 8 = 40 ppm, -40C to +85C Use form C052 to detail non-standard parameters. 9 = 50 ppm, -40C to +85C 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 Operating Mode Fundamental Crystal Cut AT-Cut Frequency Range 16.0 MHz to 54.0 MHz 30 ppm Standard Frequency Tolerance 25C ( 10 ppm, 15 ppm and 20 ppm Available) Frequency Stability Tolerance 50 ppm Standard (Operating Temperature Range, Referenced to 25C Reading) ( 10 ppm, 15 ppm, 20 ppm, 30 ppm and 40 ppm Available) -20C to +70C Standard Operating Temperature Range (-40C to +85C Available) Storage Temperature Range -40C to +85C 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 W Typical, 100 W Maximum Aging 25C 3 ppm/year maximum Reflow Condition, per JEDEC J-STD-020 +255C 5C, 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 MARKI NG 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 ) codes. XX.XX 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 0.027 0.029 0.035 0.90 1 2 ( 0.700 ) 4 3 Bottom View 0.028 4 3 0.061 1.55 ( MM ) Key: Inch ( 1.625 ) 0.064 1 2 Notes: mm 1. Termination pads (e4), barrier-plating is nickel (Ni) with gold (Au) flash plate. Key: 0.073 1.85 Inch 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 CTS Electronic Components, Inc. 171 Covington Drive Bloomingdale, IL 60108 Electrical Parameters