Home | Contact Us
Product: Crystal
Series: M49, ML49
Package Type: SMD (7.0 x 5.0 x 1.2 mm)
General SpecificationsStandard Frequencies

General Specifications :
  • RoHS compliant, lead-free product.
  • Lowest cost among all Mercury SMD crystals .
  • High frequency fundamental mode is available in BT-cut
  • Withstands solder reflow and is available in EIA-481A tape and reel.
  • AT-strip crystal inside. Optimized for low spuriousness.

(108 KB)
Item / Type M49 Series (11.4 x 4.7 x 4.2 mm) & ML49 (11.4 x 4.7 x 3.2 mm)
Frequency Range /
Crystal Cut
AT-cut, fundamental mode : 3.200 MHz ~ 48.000 MHz,
AT-cut, 3rd overtone : 27.000 MHz ~ 70.000 MHz,
BT-cut, fundamental mode : 24.000 MHz ~ 48.000 MHz,
Load Capacitance Series Resonance or Parallel (8 to 32 pF typical)
Equivalent Series Resistance (E.S.R.) Frequency Crystal Cut, Oscillation Mode E.S.R. max.
3.2 MHz ~ 3.4 MHz AT-cut, fundamental mode 300 Ω
3.5 MHz ~ 6.0 MHz AT-cut, fundamental mode 120 Ω
6.1 MHz ~ 10.0 MHz AT-cut, fundamental mode 60 Ω
10.1 MHz ~ 30.0 MHz AT-cut, fundamental mode 40 Ω
24.0 MHz ~ 48.0 MHz BT-cut, fundamental mode 40 Ω
27.0 MHz ~ 30.0 MHz AT-cut, 3rd overtone 150 Ω
30.1 MHz ~ 50.0 MHz AT-cut, 3rd overtone 100 Ω
50.1 MHz ~ 70.0 MHz AT-cut, 3rd overtone 80 Ω
Drive Level 100 µW (500 µW max.)
Frequency Tolerance ±5 ppm, ±10 ppm, ±20 ppm, or ±30 ppm at 25°C
Frequency Stability /
Temperature
-10°C to 60°C -20°C to 70°C -40°C to 85°C
±10 ppm, ±15 ppm, ±20 ppm,
±25ppm, ±30ppm
±10 ppm(contact Mercury), ±15 ppm,
±20 ppm, ±25ppm, ±30ppm
±15 ppm, ±20 ppm,
±25ppm, ±30ppm
Aging ΔF/F: ±3 ppm / year (max.)
Storage Temperature -50°C to +105°C
Standard Frequencies and Part Numbers

Note: Tighter tolerance, tighter stability and lower ESR are available.
(partial frequency list only. Frequency tolerance, frequency stability and ESR can be specified per your requirements).

MEC Part Number MEC Specification Code MEC Part Number MEC Specification Code
MQ-10.000-16P 30/50/-10+60/60R MQ-20.2752-16P 30/50/-10+60/40R
MQ-11.0592-16P 30/50/-10+60/50R MQ-24.000-16P 30/50/-10+60/40R
MQ-12.000-16P 30/50/-10+60/50R MQ-24.00014-16P 30/50/-10+60/40R
MQ-14.31818-16P 30/50/-10+60/40R MQ-29.4912-16P 30/50/-10+60/40R
MQ-14.7456-16P 30/50/-10+60/40R MQ-30.000-16P 30/50/-10+60/40R
MQ-16.000-16P 30/50/-10+60/40R MQ-32.000-16P 30/50/-10+60/40R
MQ-16.000312-16P 30/50/-10+60/40R MQ-36.000-16P 30/50/-10+60/40R
MQ-18.432-16P 30/50/-10+60/40R MQ-40.000AF-16P 30/50/-10+60/40R
MQ-19.6608-16P 30/50/-10+60/40R MQ-40.000A3-S 30/50/-10+60/80R (AT 3rd O/T)
MQ-20.000-16P 30/50/-10+60/40R MQ-40.320A3-S 30/50/-10+60/80R (AT 3rd O/T)