Small size and high performance are the characteristics of this series of precision OCXO resonators.
Housed in UM1 Slimline Resistance Weld hardware, these resonators produce very high Q factors and low long term aging trends. The hardware can be configured for surface mounting should that be required.
Final frequency tuning is accomplished at the upper temperature turn point. This can be as high as 100oC and as tight as +/- 1.5 ppM.
The performance of these resonators is very close to Cold Weld units but are less costly and allow OCXOs to be reduced in size.
The following table is a sampling of types that have been built at Lap-Tech.
For more technical information contact the engineering manager:
For a quote please contact the Sales/Marketing Co-ordinator Robert Studer:
Some Practical Examples of Typical Parameters |
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Frequency(Mhz) |
Mode |
Operating temperature (C) |
Resistance(Ω) |
Motional Inductance(Mh) |
Quality Factor(K) |
Annual Aging Spec After 30 Days(ppM) |
6.142 |
Fundamental |
25 |
30 |
96.9 |
125 |
0.3 |
8.000 |
Fundamental |
25 |
15 |
42.7 |
146 |
0.3 |
10.000 |
Fundamental |
85 |
11 |
18.6 |
117 |
0.3 |
13.000 |
Fundamental |
85 |
13 |
12.2 |
78 |
0.4 |
19.200 |
3rd Overtone |
85 |
42 |
56.0 |
161 |
0.1 |
20.480 |
3rd Overtone |
93 |
34 |
41.4 |
160 |
0.1 |
26.000 |
3rd Overtone |
88 |
26 |
27.8 |
178 |
0.1 |
32.768 |
3rd Overtone |
85 |
23 |
19.9 |
159 |
0.2 |
40.000 |
3rd Overtone |
80 |
28 |
16.9 |
154 |
0.3 |
50.000 |
3rd Overtone |
93 |
24 |
9.9 |
132 |
0.5 |
60.000 |
3rd Overtone |
81 |
29 |
4.8 |
61 |
0.1 |
100.815 |
3rd Overtone |
84 |
27 |
2.3 |
49 |
0.2 |
80.000 |
5th Overtone |
85 |
38 |
79 |
100 |
0.3 |
100.000 |
5th Overtone |
85 |
42 |
6.1 |
91 |
0.5 |
130.000 |
5th Overtone |
96 |
36 |
3.0 |
68 |
1.0 |
142.000 |
5th Overtone |
96 |
40 |
2.5 |
58 |
2.0 |
166.000 |
5th Overtone |
96 |
34 |
1.7 |
43 |
2.0 |
* If you require higher Q factors or better aging. Lap-Tech Inc. can offer Vacuum Brazing of the holders. Check with our Engineering Department for more details.