Data Sheet

EURO QUARTZ
CX16 TELEMETARY CRYSTAL
Ultra-Miniature SMD Crystal
24MHz to 50MHz
FEATURES
Ultra-miniature SMD design, 2.0 x 1.2 x 0.4mm
Frequency Range 24MHz ~ 50MHz
High shock and vibration resistance
Hermetically sealed
Ceramic lid
Excellent ageing characteristics
Full military testing available
OUTLINE & DIMENSIONS
DESCRIPTION
CX16 crystals are manufactured with an unique pholithographic and
chemical milling process and are then sealed within a ceramic
package for high stability and low ageing. The parts are available
with tight calibration tolerances and high stability over temperature.
With a fast start-up time the crystal is ideally suited to applications
with space constraint and require components with low profiles.
SPECIFICATION
Specifications stated are typical at 25°C unless otherwise indicated.
Specifications may change without notice.
Fundamental Frequency:
Motional Resistance R (Ω):
Motional Capacitance C1 (fF):
24.0MHz
100
1.3
26.5MHz
90
1.4
30
0.6
30
0.6
QualityFactor Q (k):
Shunt Capacitance C0 (pF):
Standard Calibration Tolerance1:
Load Capacitance:
Drive Level:
Frequency Stability1,2
-10° to +70°C:
-40° to +85°C:
-55° to +125°C:
Ageing, First Year:
Shock, Survival:
Vibration, Survival3:
Operating Temperature Range:
Storage Temperature Range:
Maximum Process Temperature:
1.
2.
3.
TERMINATION - PLATING
Designation
Termination
SM1
Gold Plated (Lead Free)
±100ppm or tighter as required.
10pF (or as specified)
200µW maximum
±50ppm to ±10ppm
±100ppm to ±20ppm
±100ppm to ±30ppm
±5ppm maximum
(Better than ±1ppm available)
5000g, 0.3ms, ½ sine
20g rms, 10~2000Hz swept sine
-10°C to +70°C (Commercial)
-40°C to +85°C (Industrial)
-55°C to +125°C (Military)
-55° to +125°C
+260°C for 20 seconds
Other tolerances available, contact Euroquartz sales
Does not include calibration tolerance. (Frequency stability
characteristics follow that of the AT-Cut thickness-shear mode.)
Per MIL-STD-202G, Method 204D, Condition D. Random
vibration testing also available.
CRYSTAL EQUIVALENT CIRCUIT
R1 Motional Resistance
C1 Motional Capacitance
L1 Motional Inductance
C0 Shunt Capacitance
PACKAGING
CX16 crystals are supplied tray packed
HOW TO ORDER LOW PROFILE CX16L CRYSTALS
CX16 - S
-
C
'S' if special,
custom design.
Otherwise leave
blank
-
SM1
-
Terminations
SM1 = Gold plated,
Lead free
C = Ceramic lid
24.0M,
Frequency
M = MHz
30
/
Calibration
Tolerance
@25°C
(in ppm)*
30 /
Frequency
Stability over
Temp. Range
(in ppm)*
- /
I
,
Temp. Range
C = -10° ~ +70°C
I = -40° ~ +85°C
M = -55° ~ +125°C
S = Customer specified
3pF
Load
Capacitance
(Customer
specified)
*Alternative 'total' tolerance (in ppm)
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk
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