MMCC-2 Series

MMCC-2 Series
Tuning Fork Crystals
Precision 32.768 kHz quartz crystals
for realtime applications
The majority of applications use a 32.768 kHz crystal in an
oscillator circuit incorporating binary division to produce a 1 Hz
output.
Environmental
Table 1
Electrical Specifications
*MMCC-2-R
PARAMETERS
Frequency
Tolerance @ +25°C
Aging
Shunt Capacitance MMCC-2
MMCC-3
Load Capacitance MMCC-2
MMCC-3
Standard Operating Conditions
Storage Temperature
Equivalent Series Resistance (ESR), Max.
MMCC-2
MMCC-3
Resonance
Quality Factor
Turnover Temperature
Parabolic Curvature Constant
Drive Level
VALUE
32.768 kHz
±30 ppm
±3 ppm/yr. Max.
1.35 pF, Typical
1 pF, Typical
12.5 pF, Typical
8.0 pF, Typical
See Table 1
-40°C to +85°C
Holder
Mechanical Shock
Vibration
Thermal Cycle
Maximum Wave Soldering Conditions
Compression seal
MIL-STD-202, Method 213, C
MIL-STD-202, Method 201 & 204
MIL-STD-883, Method 1010, B
+260°C for 10 secs.
35 Kohms
40 Kohms
Parallel
70,000 Min.
+25°C to ±5°C
2
-0.034 ppm/°C , Typical
1.0 W Max.
* Series resonant designated by “SR” prefix (i.e., SRMMCC-1).
Use MtronPTI part number 375-05A for ±20 ppm tolerance (MMCC-2).
Contact the factory for specifications not listed.
MtronPTI reserves the right to make changes to the product(s) and service(s) described herein without notice. No liability is assumed as a result of their use or application.
Please see www.mtronpti.com for our complete offering and detailed datasheets. Contact us for your application specific requirements: MtronPTI 1-800-762-8800.
Rev: 05/13/2013