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Product: Crystal
Series: MJ
Package Type: SMD (5.0 x 3.2 x 1.0 mm)
• General Specifications • Standard Frequencies

General Specifications :
  • RoHS-compliant and Pb-free product.
  • Light weight and compact. Ideal for consumer portable devices.
  • For low EMI, two of the four pads can be used to ground the entire package.
  • Frequency tolerance as tight as ±5 ppm is available.
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Item / Type MJ Series (5.0 x 3.2 x 1.0 mm)
Frequency Range /
Crystal Cut 		AT-cut, fundamental mode : 10.000 MHz ~ 50.000 MHz
AT-cut, 3rd overtone : 40.000 MHz ~ 125.000 MHz
note: Frequencies between 40 and 50 MHz can be either AT-cut fundamental mode or AT-cut 3rd overtone. To avoid mistake, please add "AF" after the frequency on part number for AT-cut fundamental mode. "A3" for AT-cut 3rd overtone. For example: MJ-40.000AF-20P.
Load Capacitance Series Resonance or Parallel (8 to 32 pF typical)
Equivalent Series Resistance (E.S.R.) Frequency Oscillation Mode E.S.R. max.
10.000 MHz ~ 50.000 MHz AT-cut, fundamental mode 50 Ω
40.000 MHz ~ 125.000 MHz AT-cut, 3rd overtone 80 Ω
Drive Level 10 µW (100 µW max.)
Frequency Tolerance ±5 ppm, ±10 ppm, ±20 ppm, or ±30 ppm at 25°C
Frequency Stability /
Temperature Range 		-10°C to 60°C -20°C to 70°C -40°C to 85°C
±5 ppm, ±10 ppm, ±15 ppm,
±20 ppm, ±25ppm, ±30ppm		 ±5 ppm (contact Mercury), ±10 ppm, ±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
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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
MJ-10.000-16P 30/30/-20+70/80R MJ-20.000-20P 30/30/-20+70/50R
MJ-12.000-16P 30/30/-20+70/80R MJ-20.945-16P 30/30/-20+70/50R
MJ-16.000-16P 30/30/-20+70/60R MJ-29.4912-32P 30/30/-20+70/50R
MJ-18.432-16P 20/20/-20+70/80R MJ-32.000-S 30/30/-20+70/50R
MJ-19.6608-16P 30/30/-20+70/50R MJ-32.768-S 30/30/-20+70/50R
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