Data Sheet

EURO QUARTZ
CX11SMAT CRYSTAL
Ultra-Miniature SMD Crystal
20MHz to 50MHz
FEATURES
OUTLINE & DIMENSIONS
Designed for infrared, vapour phase or epoxy mounting
Low profile, (<1.0mm) hermetically sealed ceramic package
Excellent ageing characteristics
High shock and vibration resistance
Full military testing available
Available with glass or ceramic lid
Custom designs available
DESCRIPTION
CX11SM crystals are designed for applications requiring very small
footprint and low profile (<1.0mm). Using micro-machining processes
this hermetically-sealed crystal ensures high stability and low ageing.
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):
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.
20.0MHz
80
1.0
24.0MHz
30
1.4
26.5MHz
30
1.6
100
0.6
150
0.7
120
0.7
±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.
PACKAGING OPTIONS
CX11SM crystals are available either tray packed (<250pcs) or tape
and reel (>250 pieces).
12mm tape, 178mm or 330mm reels (EIA 418).
Dim. H
Glass
Lid
SM1
SM2
SM3
SM4
SM5
0.74
0.77
0.81
0.77
0.81
Ceramic Thin Glass
Lid
Lid
0.77
0.79
0.84
0.79
0.84
0.77
0.79
0.71
0.79
0.71
CRYSTAL EQUIVALENT CIRCUIT
R1 Motional Resistance
C1 Motional Capacitance
L1 Motional Inductance
C0 Shunt Capacitance
TERMINATIONS - PLATING
Designation
Termination
SM1
SM2
SM3
SM4
SM5
Gold Plated (Lead Free)
Solder Plated
Solder Dipped
Solder Plated (Lead Free)
Solder Dipped (Lead Free)
HOW TO ORDER CX11SM AT CRYSTALS
CX11 -
S
'S' if special,
custom design.
Otherwise leave
blank
-
C
Blank = glass lid
C = ceramic lid
-
SM1
-
Terminations
SM1 = Gold plated *
SM2 = Solder plated
SM3 = Solder dipped
SM4 = Solder plated *
SM5 = Solder dipped *
* = Lead free
24.0M,
100
Frequency
M = MHz
Calibration
Tolerance
@25°C
(in ppm)*
/ 100 / - /
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
*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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