Document No. 008-0360-0

Page 2 - 2

Rev. B

Model 445

Quartz Crystal

ELECTRICAL CHARACTERISTICS

PARAMETER

Frequency Range

Operating Mode

Crystal Cut

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

Load Capacitance or Resonance Mode

Drive Level

Aging @ +25°C

Storage Temperature Range

VALUE

See Ordering Information

5.0 pF Typical, 7.0 pF Maximum

Operating Temperature Ranges

10 MHz to 50 MHz

Fundamental

AT-Cut

±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

NOV

APR

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.

120 = 12.00 143 = 14.31818 200 = 20.00 245 = 24.5760 270 = 27.00

130 = 13.00 160 = 16.0000 240 = 24.00 250 = 25.0000 300 = 30.00

Frequency Code

SUGGESTED SOLDER PAD GEOMETRY