EURO
QUARTZ
Frequency range 16MHz to 54MHz, fundamental mode
Ultra-miniature package 2.5 x 2.0 x 0.6mm
Packaged in standard EIA tape and reel
Ideal for PDAs, hand-held GPS, PCMCIA etc.
X22 CRYSTALS
2.5 x 2.0 x 0.6mm SMD
DESCRIPTION
X22 crystals are ultra-miniature AT-cut crystals covering the frequency
range 16MHz to 54MHz in fundamental mode. Their small size and low
mass makes these crystals ideal for miniaturized hand-held equipment
and similar high-density applications.
OUTLINE & DIMENSIONS
SPECIFICATION
Frequency Range
AT-Cut Fundamental:
Calibration Tolerance at 25ºC:
Frequency stability
-10° to +60°C
-20° to +70°C
-40° to +85°C
Storage Temperature:
Equivalent Series Resistance:
Shunt Capacitance (C0):
Load Capacitance (CL):
Ageing:
Drive level:
Reflow Soldering:
Packaging:
16.0MHz to 54.0MHz
±10ppm, ±20ppm, ±30ppm
from ±10ppm (±5ppm available)
from ±10ppm
from ±15ppm
-50°~+105°C
See table
2pF to 4pF typical, 5pF maximum
Series or from 9pF to 32pF
<±2ppm per year at +25°C
50 microWatt, 100 microW max.
10s maximum at 260°C twice
or 180s at 230°C, once.
EIA tape and reel
EQUIVALENT SERIES RESISTANCE
Frequency
Range MHz
16.0~21.0
21.0~26.0
26.1~54.0
ESR
Ohms Max.
100
80
60
PART NUMBER GENERATION
Part numbers for MT crystals are generated as follows:
Example:
20.000MHz X22/10/30/-10+60/12pF/100R
Nominal Frequency
Package
Calibration tolerance
at 25°C (±ppm)
Temperature Stability
over temp. range (±ppm)
Operating Temp. Range (°C)
(Lower and upper limits)
Load Capacitance
(Either SR for series or CL in pF)
Equivalent Series Resistance
(When special value is required)
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 Email: info@euroquartz.co.uk www.euroquartz.co.uk
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