Thru-Hole Tuning Fork
Model: NC15LF/NC26LF/NC38LF
FEATURES
•
•
•
•
•
Miniature Packages
Low Cost
Cold Weld Design
Long Term Stability
Tight Tolerance
RoHS Compliant / pB Free
Rev. 7/23/2010
NC15LF
1.5 Max
1.5 Max
Frequency
Stability
-0.04 PPM / (ƼC)
2
-0.04 PPM / (ƼC)
2
-0.04 PPM / (ƼC)
2
• PART NUMBER SELECTION
Part Number
298LF-Frequency-xxxxx
299LF-Frequency-xxxxx
300LF-Frequency-xxxxx
Model
Number
NC15LF
NC26LF
NC38LF
Operating
Temperature
-20 ºC~ +60 ºC
-20 ºC~ +60 ºC
-20 ºC~ +60 ºC
Frequency
32.768 kHz
32.768 kHz
32.768 kHz
5.0 Max
5.0 Max
• STANDARD SPECIFICATIONS
PARAMETERS
Frequency
Frequency Tolerance @ 25ºC
Frequency Stability
Temperature Coefficient
Temperature Range
Turnover (T
O
)
Operating (T
OPR
)
Storage
(T
STG
)
Equivalent Series Resistance (R
S
)
NC15 / NC26
NC38
Load Capacitance (C
l
)
Insulation Resistance @ 100V
DC
Drive Level
Aging per year
MAX
(unless otherwise noted)
32.768 kHz
± 20 PPM
-0.04 PPM / (ƼC)
2
+20ºC ~ +30ºC
-20ºC ~ +60ºC
-30ºC ~ +70ºC
50 kΩ
35 kΩ
12.5 pF (Standard)
6 pF (Optional)
500 MΩ Min
1.0 µW
±3 PPM
0.22 ±0.06
0.22 ±0.05
4.5 Min
4.5 Min
0.45
0.45
NC26LF
2.0 Max
6.0 Max
0.2 ±0.07
4.0 Min
0.7 ±0.15
All specifications subject to change without notice.
Note: Can should not be soldered to the circuit board or grounded. If securing the can to the board
is desired, a rubber adhesive is recommended.
NC38LF
3.0
8.3 Max
0.3 ±0.07
9.0 Min
1.1 ±0.2
All dimensions are in millimeters.
FOXElectronics
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63
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