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ACT HC49/U ( Standard Devices )
The ACT HC49U family is available in industry standard package and specifications. This series
offers a broad range of frequencies and tolerances in both standard and industrial temperature
ranges. Housed in resistance welded cases the HC49U offers excellent aging characteristics.
Cost / performance ratios are extremely good for this family of devices and they offer reasonably
high density mounting capability, where height isn't a restriction. Low frequencies are also more
readily available in this type of package. Various optional packages and custom specifications are
available - PLEASE SEE SEPARATE DATA SHEET FOR ACT HC49/U ( CUSTOM OPTIONS )
Specification
Parameter
Symbol
Specification
Condition
Frequency Range
fo
1.8432MHz ~ 150MHZ
Fundamental & 3rd to 7th O/T
±5ppm ~ 100ppm (30ppm Std )
-10~+60°C,-20~+70°C & -40~+85
Please see table 2
Please specify
∆f/fo
Frequency Tolerance @25°C
Temp Operating Range
Stability over Temp Range °C
Temp Storage Range
Please specify
Please specify
Please specify
Τopr
∆f/Fo
Tstg
ESR
-40°C to +85°C
Equivalent Series Resistance
Please see table 1
Dependent on cut & frequency
Shunt Capacitance
Load Capacitance
Drive Level
CO
CL
DL max
7pF max
8 ~ 55pF or SR
100µW typ
Please specify
Options available - please enquire
∆ Freq & ESR
500MΩ Min
±3ppm / year max@25°C
Drive Level Dependency
Insulation Resistance
Aging
DLD
IR
0.01, 0.1, 1, 10, 50, 100 mW steps
@ DC 100V ±15V
Fa
Table 1
Frequency (MHz)
ESR and mode of oscillation
ESR (Ω) max
ESR (Ω)
Mode
Frequency (MHz)
Mode
1.8432 ~ 1.999
2.000 ~ 2.399
350
300
AT Fund
AT Fund
7.000 ~ 9.999
30
20
AT Fund
AT Fund
10.000 ~ 12.999
2.400 ~ 2.999
3.000 ~ 3.199
3.200 ~ 3.499
3.500 ~ 3.899
3.900 ~ 4.099
4.100 ~ 5.999
200
150
100
90
AT Fund
AT Fund
AT Fund
AT Fund
AT Fund
AT Fund
AT Fund
13.000 ~ 30.000
24.000 ~ 29.999
30.000 ~ 65.000
60.000 ~ 99.999
90.000 ~ 120.000
120.000 ~ 150.000
20
50
40
90
90
90
AT Fund
3rd Overtone
3rd Overtone
3rd Overtone
5th Overtone
7th Overtone
70
60
6.000 ~ 6.999
50
Table 2
Frequency stability Vs operating temperature range
Stability
±10ppm ±15ppm ±20ppm ±25ppm ±30ppm ±50ppm
Temp
-10 ~ +60°C
-20 ~ +70°C
-40 ~ +85°C Enquire
Please note that all parameters can not necessarily be specified in the same device
Customer to specify : Frequency, Frequency Tolerance, Temperature Stability, Operating Temperature Range, Load Capacitance & Mode
In line with our ongoing policy of product evolvemIeSntOan9d0im0p1r:o2ve0m0e0nt,Rtheegaibsotveersepdecification may be subject to change without notice
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: 9 SCB
Date 20-11-2012