LU-QORF_6-2016
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MM-20SS<br />
SMD CRYSTAL (UHRENQUARZ)<br />
Tuning Fork Crystal<br />
Dimensions (Units: mm)<br />
Internal Connection<br />
Do not connect #2 and #3<br />
to external device.<br />
Recommended Solder Pattern<br />
FEATURES<br />
8.0 x 3.8 x 2.5<br />
1. Plastic package.<br />
2. Embeded with heat resistant<br />
cylinder type crystal bring highly<br />
stable characteristics.<br />
3. Automatic mounting and<br />
reflowable type.<br />
APPLICATION<br />
For clock source for portable and<br />
automotive equipment with low<br />
power consumption.<br />
Model<br />
Frequency<br />
Frequency Tolerance (at +25°C)<br />
Turnover Temperature<br />
Temperature Coefficient<br />
Motional (Series) Resistance<br />
Load Capacitance (CL)<br />
Shunt Capacitance<br />
Drive Level<br />
Operating Temperature Range<br />
Storage Temperature Range<br />
Aging (at +25°C) first year<br />
CROSS REFERENCES:<br />
• MC-306 EPSON<br />
• CM-200S CITIZEN<br />
• CM-200C CITIZEN<br />
ELECTRICAL SPECIFICATIONS<br />
MM-20SS<br />
32.768 kHz<br />
±10 ppm / ±20 ppm<br />
+25°C ±5°C<br />
– 0.034 ±0.006 ppm/ °C 2 typical<br />
50 kW max.<br />
12.5 pF typical (Customer Spec.)<br />
1.35 pF typical<br />
1 μW max.<br />
– 10°C to +60°C, -40°C to +85°C option<br />
– 55°C to +125°C<br />
±3 ppm / year max.<br />
All specifications subject to change without notice.<br />
41<br />
digital electronic gmbh • Tel.: +49 (0) 8221/708-0 • Fax: +49 (0) 8221/708-80
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