SPECIFICATIONS
MM49 & SM49
Frequency Range
1.0 ~ 200.0 MHz*
Operating Temp Range
-201C ~ 701C (other ranges available, please call factory)
Storage Temp Range
-551C ~ 1051C
Shunt Capacitance
7.0 pF max
Calibration Tolerance
! 30ppm @ 251C
Frequency Tolerance
! 50ppm from -201C to 701C standard (call for other options)
vs Temp Range
Equiv Series Resistance
1.0 = 3000
24.0 ~ 75.0 =
40 (3rd Overtone)
(MHz = max)
1.843 ~ 4.0 = 800
75.0 ~ 160.0 =
80 (5th Overtone)
Fundamental unless otherwise
4.0 ~ 6.0 = 100
160.0 ~ 180.0 = 120 (7th Overtone)
otherwise indicated
6.0 ~ 24.0 =
40
180.0 ~ 200.0 = 140 (9th Overtone)
Drive Level
0.1 mW max
Humidity
85% RH, 851C, 48 Hours
Hermetic Seal
Leak Rate 2 x 10-8 ATM-cm3/sec max
Solderability
MIL-STD-202F Method 208E
Vibration
MIL-STD-202F Method 204; 35G, 50~2000 Hz (<25.0 MHz);
20G, 50~2000 Hz (25.0 MHz)
Shock
MIL-STD-202F Method 213B Test Cond E, 1000G, 1/2 Sine Wave
Packaging
Bulk (standard); Tape & Reel available (see over)
* Call for your specific frequency requirement
Designing and manufacturing innovative frequency control devices since 1927
Microprocessor Crystals
MM49 M SM49
502 VIA DEL MONTE, OCEANSIDE, CA 92054
TEL: 760.433.4510
FAX: 760.434.0255
Monitor Products Company Inc reserves the right to make changes to its products and product specifications without notice. No liability is assumed as a result of their use or application.
07-02-01
For many years, the MM49 unit was an industry-standard crystal, with advantages in size and cost. Although
smaller and newer designs have gained large acceptance, the reliable MM49 remains the most economical in
many applications. In addition, it can usually be designed to provide special motional parameter requirements,
such as VCXO pull, that smaller crystal units cannot match. So if cost is an issue, Monitor recommends the
rugged, resistance-welded MM49, and its surface-mountable partner, the SM49.
Monitor Products has a proven track record as a pioneer manufacturer
in the frequency control market. If our extensive selection of standard
and engineered crystals and oscillators does not meet your spec, we
will work with you towards a customized solution.
MM49
SM49
Units = mm