EURO
QUARTZ
Ultra-Miniature SMD Crystal
FEATURES
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
CX11SMAT CRYSTAL
20MHz to 50MHz
OUTLINE & DIMENSIONS
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 Tolerance
1
:
Load Capacitance:
Drive Level:
Frequency Stability
1,2
-10° to +70°C:
-40° to +85°C:
-55° to +125°C:
Ageing First Year:
Shock, Survival:
Vibration, Survival
3
:
Operating Temperature Range:
20.0MHz
80
1.0
100
0.6
24.0MHz
30
1.4
150
0.7
26.5MHz
30
1.6
120
0.7
Dim. H
SM1
SM2
SM3
SM4
SM5
Glass
Lid
0.74
0.77
0.81
0.77
0.81
Ceramic Thin Glass
Lid
Lid
±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
0.77
0.79
0.84
0.79
0.84
0.77
0.79
0.71
0.79
0.71
CRYSTAL EQUIVALENT CIRCUIT
Storage Temperature Range:
Maximum Process Temperature:
1.
2.
3.
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.
R1 Motional Resistance
C1 Motional Capacitance
L1 Motional Inductance
C0 Shunt Capacitance
TERMINATIONS - PLATING
Designation
Termination
PACKAGING OPTIONS
CX11SM crystals are available either tray packed (<250pcs) or tape
and reel (>250 pieces).
12mm tape, 178mm or 330mm reels (EIA 418).
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
-
C
-
SM1
-
24.0M,
Frequency
M = MHz
100
Calibration
Tolerance
@25°C
(in ppm)*
/ 100 / - /
Frequency
Stability over
Temp. Range
(in ppm)*
I
'S' if special,
custom design.
Otherwise leave
blank
Blank = glass lid
C = ceramic lid
Terminations
SM1 = Gold plated *
SM2 = Solder plated
SM3 = Solder dipped
SM4 = Solder plated *
SM5 = Solder dipped *
* = Lead free
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 info@euroquartz.co.uk www.euroquartz.co.uk
51mcu
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