445 Series Datasheet by CTS-Frequency Controls

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Document No. 008-0360-0 Page 1- 2 Rev. D
www.ctscorp.com
Model 445
Surface Mount Quartz Crystal
FEATURES
Standard 5.0mm x 3.2mm Glass Seal Package
Fundamental Crystal Design
Frequency Range 8 – 50MHz
Frequency Tolerance, ±20ppm Standard [other tolerances available]
Frequency Stability, ±30ppm 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 2011/65/EU
- Lead-Free Termination Finish
- Exemption 7(c)-I, Electrical and electronic components containing lead [Pb] in glass
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
PACKAGING INFORMATION [For Reference]
TEMPERATURE RANGE FREQUENCY IN MHz
W = 0°C to +50°C
A = -10°C to +60°C
C = -20°C to +70°C
I = -40°C to +85°C
M445
M - indicates MHz and decimal point. 3
LOAD CAPACITANCE
E = 20pF
F = 24pF
G = 30pF
H = 32pF
J = 9pF
K = 8pF
L = 12pF
S = Series
FREQUENCY TOLERANCE @ +25°C
2 = ±20ppm
3 = ±30ppm
A = 10pF
B = 13pF
C = 16pF
D = 18pF
Contact your local CTS Representative or CTS Customer Service for availability.
TEMPERATURE STABILITY
1 = ±10ppm 1
X = ±15ppm 2
2 = ±20ppm
3 = ±30ppm
5 = ±50ppm
3. Frequency is recorded with two leading digits before the ‘M’ and 5 significant digits after the ‘M’ [including zeros].
Not all performance combinations and frequencies may be available.
2. Only available with temperature range codes "W", "A" and "C".
1. Only available with temperature range codes "W" and "A".
Factory may package reels in quantities of 1k pcs. or 3k pcs. Reel size is 180mm.
GTSo ElECTIUNIC WIFflNENlS Frequency Range 8M HZ to 50M HZ Operating Mode Fundamental Crystal Cut AT»Cut Frequency Tolerance @ +25%: :20ppm, :30ppm q y y tloppmv :15ppm, :20ppm, :30ppm, :SOppm >20°C to +70” C 40‘": to +85°C 8MHZ » <12mhz 100="" ohms="" 12mhz="" »=""><16mhz 50="" ohms="" 16mhz="" »=""><30mhz 40="" ohms="" 30mhz="" »=""><50mhz 30="" ohms="" load="" capacitance="" or="" resonance="" mode="" see="" ordering="" information="" shunt="" capacitance="" [cd]="" 5t0pf="" typical,="" 7.0pf="" maximum="" drive="" level="" 10|jw="" mint,="" ioouw="" typ.,="" 300pw="" maxi="" aging="" @="" +25°c="" :3ppm/yr="" typical="" storage="" temperature="" range="" 40°c="" to="" +85”c="" mechanical="" speci="" fl="" ca11="" ons="" ,f="" 5m="" mm="" fl="" 320="" 51.20="" swam="" vlwl="" 5mm»="" kayzmm="" hum»="" 240="" :mm="">
Document No. 008-0360-0 Page 2 - 2 Rev. D
Model 445
Quartz Crystal
ELECTRICAL CHARACTERISTICS
MECHANICAL SPECIFICATIONS
PARAMETER
Fre
q
uenc
y
Ran
g
e
O
p
eratin
g
Mode
Cr
y
stal Cut
Fre
q
uenc
y
Tolerance @ +25°C
Fre
q
uenc
y
Stabilit
y
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
8MHz - <12MHz 100 Ohms
12MHz - <16MHz 50 Ohms
16MHz - <30MHz 40 Ohms
30MHz - <50MHz 30 Ohms
Load Ca
p
acitance or Resonance Mode
Shunt Ca
p
acitance
[
C
0
Drive Level
A
g
in
g
@ +25°C
Stora
g
e Tem
p
erature Ran
g
e
ELECTRICAL PARAMETERS
8MHz to 50MHz
Fundamental
AT-Cut
±20ppm, ±30ppm
±10ppm, ±15ppm,
±20
pp
m
,
±30
pp
m
,
±50
pp
m
-40°C to +85°C
10µW Min., 100µW Typ., 30W Max.
±3ppm/yr Typical
VALUE
Equivalent Series Resistance [Maximum]
See Orderin
g
Information
5.0pF Typical, 7.0pF Maximum
Operating Temperature Ranges
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. JEDEC termination code (e4). Barrier plating is nickel [Ni]
with gold [Au] flash plate.
3. Reflow conditions per JEDEC J-STD-020; 260°C
maximum, 10 seconds.
4. MSL – 1.
MARKING INFORMATION
1. M445 - CTS Model Series.
2. C – CTS.
3. D – Date code. See Table I for codes.
4. XXX – Frequency code.
Reference CTS document 016-1454-0.
SUGGESTED SOLDER PAD GEOMETRY

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