LU-QORF_2017
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MM-11B<br />
SMD CRYSTAL (UHRENQUARZ)<br />
Tuning Fork Crystal<br />
Dimensions (Units: mm)<br />
Recommended Solder Pattern<br />
Do not connect #2 and #3<br />
to external device<br />
FEATURES<br />
6.9 x 1.4 x 1.3<br />
1. Ultra-miniature type of SMD.<br />
2. Highly stable characteristics –<br />
high enough to permit reflow<br />
soldering.<br />
3. Can be mounted<br />
automatically.<br />
4. Low consumption makes it<br />
ideal for application<br />
to portable equipment.<br />
5. Plastic package.<br />
Parabolic Temperature Curve<br />
ELECTRICAL SPECIFICATIONS<br />
Model<br />
MM-11B<br />
Nominal Frequency<br />
32.768 kHz<br />
Frequency Tolerance (at +25°C)<br />
Frequency vs Temperature<br />
Turnover Temperature<br />
Temperature Coefficient<br />
Operating Temperature Range<br />
Storage Temperature Range<br />
Equivalent Series Resistance<br />
Load Capacitance (CL)<br />
Motional Capacitance<br />
Shunt Capacitance<br />
Drive Level<br />
±20 ppm<br />
See drawing<br />
+25°C ±5°C<br />
-0.034 ± 0.006 ppm/°C 2 typical<br />
– 40°C to +85°C<br />
– 55°C to +125°C<br />
65 kW max.<br />
12.5 pF typical<br />
0.0023 pF typical<br />
1.2 pF max.<br />
1 μW max.<br />
Insulation Resistance 500 MW min. at 100 VDC ±15V<br />
Aging (at +25°C) first year<br />
Sealing<br />
CROSS REFERENCES:<br />
• MC-146 EPSON<br />
• CM-130 CITIZEN<br />
±3 ppm / year max.<br />
1 x 10 -2 μ Pa • m 3 /s max.<br />
All specifications subject to change without notice.<br />
40<br />
digital electronic gmbh • Tel.: +49 (0) 8221/708-0 • Fax: +49 (0) 8221/708-80
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