ACT ACT845SMX-2_10

Tel :
Fax :
email :
0044 (0)118 979 1238
0044 (0)118 979 1283
[email protected]
ACT845SMX-2
The ACT845SMX-2 is a 2 pad, cost competitive ceramic packaged, glass sealed crystal. The package
provides for the durability and reliability, necessary for reflow processes. The pads are gold plated. With its
wide range of frequencies allowing for ease of circuit design, and with a good range of stabilities, it has
become one of the optimum choices for design engineers. (Available loose or reeled to suit low / high volume
requirements).
Applications include Microprocessor Systems, Instrumentation, Communications, Notebook & PCMCIA and
many more.
Specification
Parameter
Symbol
Frequency Range
fo
Frequency Tolerance
Stability over Temp Range
Temp Operating Range
Temp Storage Range
Equivalent Series Resistance
Load Capacitance
Shunt Capacitance
Drive Level
Insulation Resistance
Reflow Process
Aging
f/fo
Tc
Topr
Tstg
ESR
CL
C0
DL
IR
Table 1
Frequency MHz
10.0~11.999
12.0~47.999
48.0~84.0
Fa
Specification
10.0 ~ 48.0 MHz
Fundamental
48.0 ~ 80.0 MHz
Third Overtone
±20ppm ~ 100ppm (@25°C±3°C )
Please refer to Table 2
±20ppm ~ 100ppm ( Ref to :25°C±3°C )Please refer to Table2
-10 ~ +70°C
-40 ~ +85°C
See Table 1
10 ~ 30pF or Series Resonance
7pF max
300W max. (100W Typical)
500Mmin
10 Seconds ( max) @260°C
±5ppm / year max
ESR  max
80
50
70
Mode
Fundamental
Fundamental
3rd Overtone
Condition
Please specify
Please Specify
Please specify
Please specify
@100V DC
@25°C
Pad surface material Au
Table 2
Tolerance
Stability
25°C
-10~+70°C
-40~+85°C
±20ppm
Enquire
Enquire
Enquire
±30ppm



±50ppm



±100ppm



Please note that all parameters can not necessarily be specified in the same device
Customer to specify : Frequency, Frequency Tolerance, Temperature Stability, Operating Temperature & Load Capacitance
In line with our ongoing policy of product evolvement and improvement, the above specification may be subject to change without notice
ISO9001:2000 Registered
For quotations or further information please contact us at:
3 The Business Centre, Molly Millars Lane, Wokingham, Berkshire, RG41 2EY, UK
http://www.actcrystals.com
Issue 4 H2
Date 14/12/2010
Page 1 of 3
Tel :
Fax :
email :
0044 (0)118 979 1238
0044 (0)118 979 1283
[email protected]
ACT845SMX-2
Standard Reel: 1K pieces
E
16.0
G
2.5
H
J
I
13.5 21.6 60.0
A
1.5
B
4.0
C
8.0
D
7.5
K
L
M
1.6
K
H
I
J
L
M
G
65.2 71.0 76.7 82.5 88.3 94.1 99.8
178.0 17.5
REFLOW SOLDERING CONDITIONS
F
2.0
Pre Heat : 30 ~ 60 Seconds
Reflow temp : 260°C Max
In line with our ongoing policy of product evolvement and improvement, the above specification may be subject to change without notice
ISO9001:2000 Registered
For quotations or further information please contact us at:
3 The Business Centre, Molly Millars Lane, Wokingham, Berkshire, RG41 2EY, UK
http://www.actcrystals.com
Issue 4 H2
Date 14/12/2010
Page 2 of 3
SERIES : ACT845SMX-2 Part numbering code is AZ
Example :
AZ
1200
L
O
G
RO
F
C
(845SMX-2)
(12.000MHz )
(±50ppm)
(±50ppm)
(-20+70)
(16pF)
(Fund')
(1K Reel )
- PF
(RoHS)
Tolerance (±pm)
@ 25ºC
Frequency
To 99.9999MHz 1st
four digits of
Frequency
&
G
I
L
20
30
50
Operating
Temperature
Range (ºC)
Std
F
M
>99.9999MHz
1st five Digits of
-10+70
-40+85
Examples
Stability Over
Operating
Temperature (ºC)
1000 = 10.000MHz
7999 = 79.9999MHz
I
K
O
NB:
It is important to
suffix the above
part number with
the full frequency
required to give a
completed part
number as
illustrated below
20
30
50
Std
Std
Load
Capacitance
( pF or Series
Resonance)
KO
MO
OO
ZO
PO
RO
TO
VO
AA
BA
DA
SR
Mode
F
A
Fundamental
RoHS
Comp'
3rd O/T
- PF
10
11
12
14
15
16
18
20
24
25
30
SR
Package
L = Loose
C =1K Reels
Full Example Part Number
AZ1200LOGROFC-PF
12.00MHz
Table 2 Available Stabilities
Tolerance
Stability
25°C
-10~+70°C
-40~+85°C
±20ppm
Enquire
Enquire
Enquire
±30ppm



±50ppm



±100ppm



NOTES :
1)
Tighter Tolerances and Stabilities and other Operating Temperature Ranges may be available.
As each of these specification parameters impact on each other, it is not always possible to combine all options in one
device. Therefore, if a specification not catered for above is required, please contact us directly for the relevant part
number code(s).
2)
ACT are always happy to consider truly custom specification parts which may require non-standard specification
parameters, specific testing, customer requested AQL requirements, non standard packaging or taping and reeling and
custom marking. Such devices would normally be allocated a custom specification part number which is wholly customer
specific. ( MOQ dependent )
( EG : A 12.00MHz custom ACT845SMX-4 device may have a part number such as AZ1200C- C2222PF)
3)
Frequencies below 10.000MHz are prefixed with a "0" (eg: 0900 = 9MHz.Whereas 10.000MHz is 1000 )
ISO9001 Registered
For quotations or further information please contact us at:
3 The Business Centre, Molly Millars Lane, Wokingham, Berkshire, RG41 2EY, United Kingdom
http:www.actcrystals.com
Issue 4 H2
Date 14/12/2010
Page 3 of 3