445W21AXXMXXXXX CTS | Alldatasheet

Document overview

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Technical content

Document No. 008-0360-0 Page 1- 2 Rev. B www.ctscorp.com Model 445 Surface Mount Quartz Crystal

FEATURES

  • Standard 5.0mm x 3.2mm Glass Seal Package
  • Fundamental Crystal Design
  • Frequency Range 10 – 50 MHz
  • Frequency Tolerance, ±20 ppm Standard [other tolerances available]
  • Frequency Stability, ±30 ppm Standard [other stabilities available]
  • Operating Temperature to -40°C to +85°C
  • Tape & Reel Packaging Standard, EIA-481
  • RoHS Compliant in Accordance with EU Directive 2005/95/EC - Lead-Free Termination Finish - Exemption 5 for Pb in glass material used for cover attach

APPLICATIONS

Model 445 is a low cost device used in a wide range of commercial applications including notebooks, computer peripherals, audio visual, Bluetooth and USB interfaces, PDAs, and automotive electronics.

ORDERING INFORMATION

Example Part Numbers: 445C23D14M31818 445I23E14M31818 M 1 = ± 10 ppm 1 X = ± 15 ppm 2 2 = ± 20 ppm 3 = ± 30 ppm (std) 5 = ± 50 ppm 2] Only available with temperature range codes "W", "A" and "C". 445 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 FREQUENCY IN MHz M - indicates MHz and decimal point. 3 STABILITY OVER TEMPERATURE FREQUENCY TOLERANCE @ 25°C OPERATING TEMPERATURE RANGE 2 = ± 20 ppm (standard) 3 = ± 30 ppm W = 0°C to +50°C A = -10°C to +60°C C = -20°C to +70°C (standard) I = -40°C to +85°C (standard) Not all performance combinations and frequencies may be available. Contact your local CTS Representative or CTS Customer Service for availability. 3] Frequency is recorded with two leading digits before the ‘M’ and 5 significant digits after the ‘M’ (including zeros). 1] Only available with temperature range codes "W" and "A". PACKAGING INFORMATION Device quantity is 1,000 pieces minimum per 180mm reel. DIMENSIONS IN MILLIMETERS DIRECTION OF FEED 3.5 5.40 12.0 Ø21.4 Ø180Ø60 120° Ø13.5 17.5 2.0

Document No. 008-0360-0 Page 2 - 2 Rev. B Model 445 Quartz Crystal

ELECTRICAL CHARACTERISTICS

Frequency Tolerance @ +25°C Frequency Stability Tolerance (Operating Temperature Range, Referenced to 25°C Reading) 0°C to +50°C - 10°C to +60°C -20°C to +70°C - 40°C to +85°C

10 MHz - < 12 MHz 100 Ohms

12 MHz - < 16 MHz 50 Ohms

16 MHz - < 30 MHz 40 Ohms

30 MHz - < 50 MHz 30 Ohms

pacitance or Resonance Mode Shunt Capacitance (C0) Drive Level Aging @ +25°C Storage Temperature Range VALUE Equivalent Series Resistance [Maximum] See Ordering Information 5.0 pF Typical, 7.0 pF Maximum Operating Temperature Ranges ELECTRICAL PARAMETERS

10 MHz to 50 MHz

±20 ppm, ±30 ppm ±10 ppm, ±15 ppm, ±20 ppm, ±30 ppm, ±50 ppm -40°C to +85°C 10 µW Min., 100 µW Typ., 300 µW Max. ±3 ppm/yr Typical MECHANICAL SPECIFICATIONS PACKAGE DRAWING M445 CDXXX TABLE I – DATE CODE 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 MONTH JAN FEB MAR DEC YEAR AUG SEP OCT NOVAPR MAY JUN JUL NOTES 1. Complete CTS part number, frequency value, date code and manufacturing site code information must appear on reel and carton labels. 2. Termination pads (e4); barrier plating is nickel [Ni] with gold [Au] flash plate. 3. Reflow conditions per JEDEC J-STD-020; 260°C maximum, 10 seconds. MARKING INFORMATION 1. M445 - CTS Model Series. 2. C – CTS. 3. D – Date code. See Table I for codes. 4. XXX – Frequency code. Frequency Code SUGGESTED SOLDER PAD GEOMETRY