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
CX9SM CRYSTAL
14MHz to 250MHz
OUTLINE & DIMENSIONS
DESCRIPTION
CX9SM crystals are designed for applications requiring very small
footprint and low profile (<1.0mm). Using micro-machining processes
this hermitaclly-sealed crystalensures 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):
25.0MHz
30
1.8
120
1.0
49.0MHz
30
2.1
60
1.0
155.52MHz
25
2.5
16
1.4
Dim. H
SM1
SM2
SM3
SM4
SM5
Glass
Lid
0.87
0.87
0.91
0.87
0.91
Ceramic
Lid
0.90
0.90
0.94
0.90
0.94
CRYSTAL EQUIVALENT CIRCUIT
Standard Calibration Tolerance
1
: ±100ppm or tighter as required.
Load Capacitance:
10pF (or
as specified)
Drive Level:
200µW maximum <50MHz
100µW maximum >50MHz
Frequency Stability
1,2,3
-10° to +70°C:
±50ppm to ±10ppm
-40° to +85°C:
±100ppm to ±20ppm
-55° to +125°C:
±100ppm to ±30ppm
Ageing First Year:
±5ppm maximum
(Better than ±1ppm available)
Shock, Survival
4
:
5000g, 0.3ms, ½ sine
Vibration, Survival:
20g rms, 10~2000Hz
swept sine
Operating Temperature Range:
-10°C to +70°C (Commercial)
-40°C to +85°C (Industrial)
-55°C to +125°C (Military)
Storage Temperature Range:
-55° to +125°C
Maximum Process Temperature: +260°C for 20 seconds
R1 Motional Resistance
C1 Motional Capacitance
L1 Motional Inductance
C0 Shunt Capacitance
PACKAGING OPTIONS
CX9SM crystals are available either tray packed (<250pcs) or tape
and reel (>250 pieces).
16mm tape, 178mm or 330mm reels (EIA 418).
TERMINATIONS - PLATING
1.
2.
3.
4.
Other tolerances available, contact Euroquartz sales
Does not include calibration tolerance. (Frequency stability
characteristics follow that of the AT-Cut thickness-shear mode.)
5ppm max. for frequencies below 40MHz.
Per MIL-STD-202G, Method 204D, Condition D. Random
vibration testing also available.
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 CX9SM AT CRYSTALS
CX9 -
S
-
C
Blank = glass lid
C = ceramic lid
-
SM1
-
49.0M,
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
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
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