 |
|
|
| |
| Feature
|
 |
Small
Size |
|
Cost
effective |
|
Wide
Operating Temperature |
|
Compatible
with standard solder reflow profiles |
|
| Applications
|
|
Computer,
Watch |
|
Modem,
Pager |
|
Portable
device |
|
Communication
equipment |
|
| Item |
Symbol |
ETF-38 |
ETF-26 |
EM-206 |
| Nominal
Frequency |
f |
32.768KHz |
| Storage
Temperature |
T
STG |
-20oC~+70oC |
| Operating
Temperature |
T
OPR |
-10oC~+60oC |
-10oC~+60oC
/ -40oC~+85oC |
| Drive
Level |
DL |
1.0
Wµmax. |
| Soldering
Temperature |
TSOL |
Below
280oC within 5 sec. |
|
| Frequency
Tolerance |
 f
/ f |
±10ppm
~ ±50ppm |
±20ppm
±50ppm ±100ppm |
| Turnover
Temperature |
T |
25oC±5oC |
| Parabolic
Curvature Constant |
a |
-0.04ppm/oC2
max. |
-0.037ppm/oC2
max. |
| Loading
Capacitance |
CL |
12.5pF |
8-12.5pF
Typ. |
| Equivalent
Resistance |
R1 |
40K
max.(18K
Typ.) |
30K
max ~ 50K
max |
| Motional
Capacitance |
C1 |
0.0021pF
Typ. |
0.002pF
Typ. |
2-4
pF Typ. |
| Shunt
Capacitance |
C0 |
0.90pF |
0.85pF
Typ. |
1.3
pF Typ. |
| Insulating
Resistance |
IR |
>=
500 M |
| Aging |
fa |
±3ppm/year
max. |
| Q
factor |
Q |
|
|
100000
Typ. |
Dimensions
(mm)
 |
| ETF-26 |
 |
| ETF-38 |
 |
| EM-206 |
|
| |
|
| |
 |
|
|
 |
 |
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|
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|
