SURFACE-MOUNT CRYSTALS
MJ2 CRYSTALS
5mm x 3.2mm SMD 2 Pad
DESCRIPTION
MJ crystals are ultra-miniature surface-mount mount crystals. Produced
with both ceramic substrate and ceramic lid the compact size and low
mass make this an ideal crystal for high-density applications.
OUTLINES AND DIMENSIONS
FEATURES
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Ultra miniature size: 5.0mm x 3.2mm x 1.2mm height
All-ceramic construction with epoxy seal and Au plated pads
Extremely low ageing
High shock and vibration resistance
Ideal for PDAs, GPS, Wireless LAN, and hand-held equipment
GENERAL SPECIFICATION
Frequency Range
AT-Cut Fundamental:
Calibration Tolerance at 25ºC*:
Frequency stability over temp*:
Storage Temperature:
Shunt Capacitance (C0):
Load Capacitance (CL):
Ageing:
Drive level:
Reflow Soldering:
Holder:
Supply Packaging:
12MHz to 50MHz
±50ppm
±50ppm over -20° to +70°C
-40°~+85°C
5pF maximum
16pF
<±5ppm per year at +25°C
100mW max
10s maximum at 235°C ±5°C
Ceramic base, ceramic lid,
epoxy seal
12mm EIA tape and reel
1000 pieces per reel
PART NUMBER GENERATION
MJ2 crystal part numbers are derived as follows:
Example:
16.000MHz
MJ2/ 20/50/10/16pF
* Note: Tighter tolerance, stability and lower ESR parameters are
available, check with Euroquartz technical sales.
EQUIVALENT SERIES RESISTANCE
Frequency
(MHz)
12.0 ~ 15.99
16.0 ~ 19.99
20.0 ~ 50.0
ESR (max)
(Ohms)
80
60
40
Frequency
Package - MJ2
Calibration Tolerance at 25°C
(in ±ppm)
Temperature Stability
(in ±ppm)
Operating Temperature Range
-10°~+60°C
(lower figure of
temperature range)
Circuit Condition
CL = 16pF
STOCKHOLDING AND CUSTOM PARTS
Certain frequencies and specification of MJ2 crystals are stocked by
Euroquartz. Custom frequencies and specifications are readily
manufactured to order on short lead times. Contact Euroquartz sales
office for details.
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 1460 230000 Fax: +44 1460 230001 email: info@euroquartz.co.uk web: www.euroquartz.co.uk
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