Tel :
Fax :
email :
0044 (0)118 979 1238
0044 (0)118 979 1283
info@actcrystals.com
ACT250SMX-4
The
ACT250SMX-4
is an ultra miniature surface mount Crystal whose low power
consumption makes it ideal for portable applications. It’s size makes it suitable for high
density circuit boards or applications where space is limited and the tape and reel
packaging means that it is ideal for automatic placement machines.The heart of the
device is a heat resistant cylinder type crystal which gives it high stability characteristics
sufficient to allow reflow soldering.
Specification
Parameter
Frequency Range
Frequency Tolerance
Frequency v Temp Characteristics
Turnover Temperature
Freq. Temp. coefficient
Temp Operating Range
Temp Storage Range
Equivalent Series Resistance
Shunt Capacitance
Load Capacitance
Motional Capacitance
Drive Level
Insulation Resistance
Soldering reflow
Aging (first year)
Symbol
fo
f/fo
f/Fo
Tm
Topr
Tstg
ESR
C0
CL
C1
DL
IR
Fa
Specification
30.00 ~ 100KHz
±20ppm ~ 100ppm
See drawing
25°C ±5°C
-0.04ppm / °C² max
-10 ~ +60°C std ( -40 ~ +85°C available)
-20 ~ +70°C std
65k max**
2.0pF max
10 ~ 25.0pF
4.0 fF max
1.0 W max
500M Min
see diagram: page 2
±5ppm / first year
Condition
100~200kHz
See table/note 1 Please specify
Please specify
±200ppm~300ppm
-10 ~ +60°C
Please specify
Others available, please enquire.
@ 25°C
Please specify.
25°C ±3°C
** For the ESR specification on specific frequencies please enquire.
Table 1
Developed frequencies (kHz)
32.000
32.768
40.000
60.000
77.500
76.800
Note1. Availability of other
frequencies dependant on MOQ
please enquire.
Pad Surface
Material
Sn/Cu
Please note that all parameters can not necessarily be specified in the same device
Customer to specify : Frequency, Frequency tolerance, 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 : 10 C1b
Date : 31-5-2012
ACT [ ADVANCED CRYSTAL TECHNOLOGY ]
