Page 1 of 2 Tel: 0044 (0)118 979 1238
Fax: 0044 (0)118 979 1283
E-mail: info@actcrystals.com
Parameter Symbol Specification Condition
Nominal Frequency fo 32.768KHz
Frequency Tolerance Δf/fo ±20ppm @25°C
Frequency v Temp Characteristics Δf/fo See drawing -10 ~ +60°C
Turnover Temperature Tm 25°C ±5°
C
Freq. Temp. coefficient β(3.5 ±0.8) x 10-8/°C² max
Temp Operating Range Topr -40 ~ +85°C
Temp Storage Range Tstg -55 ~ +125°
C
Equivalent Series Resistance ESR 50K
Ω
max @25°C
Shunt Capacitance Co 1.0
p
F T
yp
ical
Load Capacitance CL 12.5
p
F
Motional Capacitance C1 2.1fF T
yp
ical
Drive Level DL 1
μ
W max
Insulation Resistance IR 500M
Ω
min @DC100v
Aging (first year) Fa ±5
pp
m @25°C
In line with our ongoing policy of product evolvement and improvement, the above specification may be subject to change without notice.
3 The Business Centre, Molly Millars Lane, Wokingham, Berkshire, RG41 2EY, UK
http://www.actcrystals.com
Customer to specify : Frequency Tolerance, Load Capacitance, Operating Temperature Range & Storage Temperature Range
ISO9001:2000 Registered
For quotations or further information please contact us at:
Please note that all parameters can not necessarily be specified in the same device
ACT201
Specification
The ACT201 is a miniature surface mount Watch 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. The epoxy based encapsulation makes it
less porous than the ACT200 and, therefore, better suited to post reflow washing
-20 -10 0 +10 +20 +30 +40 +50 +60
0
-10
-20
-30
-40
-50
-60
Δ
f/f (ppm)
Te mpera ture °C
T ypical Temperature Characteristics
Suggested Footprint
8.7 max
3.7 max
5.5
2.5 max
0. 5 mm ± 0. 1 1.15 ± 0 .2
4.2 1.3
1.8
1.0
Dimensions in mm
Issue : 4 I3
Date : 17/08/04
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Page 2 of 2
Tel: 0044 (0)118 979 1238
Fax: 0044 (0)118 979 1283
E-mail: info@actcrystals.com
ACT 201 REFLOW DIAGRAM
In line with our ongoing policy of product evolvement and improvement, the above specification may be subject to change without notice.
3 The Business Centre, Molly Millars Lane, Wokingham, Berkshire, RG41 2EY, UK
http://www.actcrystals.com
Please note that all parameters can not necessarily be specified in the same device
Customer to specify : Frequency Tolerance, Load Capacitance, Operating Temperature Range & Storage Temperature Range
ISO9001:2000 Registered
For quotations or further information please contact us at: Issue : 4 I3
Date 17/08/04
ACT 201 TAPE AND REEL
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