Parameter Symbol Specification
Nominal Frequency fo 32.768KHz
Frequency Tolerance @25°C Δf/fo ±10ppm ~ ±100ppm
Frequency v Temperature Δf/fo Please refer to plot on page 2
Temp Operating Range Topr -40 ~ +85°C
Turnover Temperature Tm 25°C ±5°C
Temperature Coefficient β-0.037ppm / °C
2
Typical
Temp Storage Range Tstg -55 ~ +125°C
Equivalent Series Resistance ESR 40K
Ω
max
Quality Factor Q 60K Typical
Load Capacitance CL 12.5pF standard ( 6pF to 12.5pF available )
Shunt Capacitance C0 1.4pf Typical
Capacitance Ratio C0/1 450 Typical
Motional Capacitance C1 0.003pF Typical
Drive Level DL 1
μ
W max
Insulation Resistance IR 500M
Ω
@ 100VDC min
Aging Fa ±5ppm max First year, 25±3°C
Max Reflow temperature Tmax 260°C 10 seconds
The ACT2x6HRSMX is a miniature surface mount Watch Crystal in a cylindrical
package offering high vibration and shock resistance together with high stability.
This device is very suitable for many real time applications including portable
equipment/hand held units and applications that require close packing density of
components, it can also be re-flow soldered to 260°C.
ACT2x6HRSMX
Please note that all parameters can not necessarily be specified in the same device
Customer to specify : Frequency Tolerance, Load Capacitance
Specification
3ppm max available
Solder Footprint .
Options
Refer to page 2
Please specify
Please specify
In line with our ongoing policy of product evolvement and improvement, the above specification may subject to change without notice
ISO9001:2000 Registered
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For quotations or further information please contact us at:
3 The Business Centre, Molly Millars Lane, Wokingham, Berkshire, RG41 2EY, UK
Tel : 0044 (0)118 979 1238
Fax : 0044 (0)118 979 1283
email : info@actcrystals.com
Lead finish SnCu
Tape & Reel Dimensions
Issue: 2 C1b
Date: 10/10/06
1 of 2
#REF!
http://www.actcrystals.com
For quotations or further information please contact us at:
3 The Business Centre, Molly Millars Lane, Wokingham, Berkshire, RG41 2EY, UK
ISO9001:2000 Registered
In line with our ongoing policy of product evolvement and improvement, the above specification may subject to change without notice
ACT2x6HRSMX
Soldering of the ACT2X6HRSMX
Reflow oven should be set up to emulate the maximum reflow profiles temperatures and times shown in the diagram below. Note it
is just as important to conform to the times specified l as the temperatures.
Pre-heat should not exceed 217°C and rate of heating from 25°C to 217°C should be limited to 4deg C/sec
Peak soldering temperature should not exceed 260°C.
Time at peak temperature should not exceed 10 seconds.
Total reflow time should not exceed 7 minutes.
Should it be required to solder the can to the PCB, then the area and volume of solder should be kept to an absolute minimum, and
trials should be conducted to determine if the re-flow process in use is satisfactory .
Wash Processes for Watch Crystals
Ultrasonic cleaning should be avoided.
Tel : 0044 (0)118 979 1238
Fax : 0044 (0)118 979 1283
email : info@actcrystals.com
Issue: 2 C1b
Date: 10/10/06
2 of 2
