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CX18SMAT Datasheet(PDF) 1 Page - EUROQUARTZ limited

Part No. CX18SMAT
Description  Frequency Range 30MHz ~ 50MHz
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Maker  EUROQUARTZ [EUROQUARTZ limited]
Homepage  http://www.euroquartz.co.uk
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CX18SMAT Datasheet(HTML) 1 Page - EUROQUARTZ limited

   
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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
EURO QUARTZ
DESCRIPTION
CX18SM crystals are designed for applications where miniaturization
is paramount. The rugged crystal is ideally suited for a wide variety of
high frequency applications including medical electronics, cardiac
rhythm management, pacemakers for example. Also auitable for
cochlear implants, infusion pumps and wildlife tracking.
FEATURES
Ultra-miniature SMD package 1.55 x 0.95 x 0.35mm
Frequency Range 30MHz ~ 50MHz
High shock and vibration resistance
Hermetically sealed
Available with glass or ceramic lid
Tight calibration tolerance
Custom designs available
CX18SM AT CRYSTAL
Ultra-Miniature SMD Crystal
30MHz to 50MHz
HOW TO ORDER CX18SM AT CRYSTALS
CX18 - S
-
_
-
SM1
-
50.0M,
100
/ 100 / - /
I
'S' if special,
custom design.
Otherwise leave
blank
Blank = glass lid
Frequency
M = MHz
Calibration
Tolerance
@25°C
(in ppm)*
Temp. Range
C = -10° ~ +70°C
I = -40° ~ +85°C
M = -55° ~ +125°C
S = Customer specified
Frequency
Stability over
Temp. Range
(in ppm)*
*Alternative 'total' tolerance (in ppm)
CRYSTAL EQUIVALENT CIRCUIT
R1 Motional Resistance
L1 Motional Inductance
C1 Motional Capacitance
C0 Shunt Capacitance
PACKAGING OPTIONS
CX18SM AT crystals are available either tray packed (<250pcs) or
tape and reel (>250 pieces).
12mm tape, 178mm or 330mm reels (EIA 418).
Specifications stated are typical at 25°C unless otherwise indicated.
Specifications may change without notice.
SPECIFICATION
1.
Other tolerances available, contact Euroquartz sales
2.
Does not include calibration tolerance. (Frequency stability
characteristics follow that of the AT-Cut thickness-shear mode.)
3.
Per MIL-STD-202G, Method 204D, Condition D. Random
vibration testing also available.
Standard Calibration Tolerance1: ±100ppm or tighter as required.
Load Capacitance:
10pF (or as specified)
Drive Level:
200µW maximum
Frequency Stability1,2
-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:
5000g, 0.3ms, ½ sine
Vibration, Survival3:
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
OUTLINE & DIMENSIONS
Terminations
SM1 = Gold plated *
SM2 = Solder plated
SM3 = Solder dipped
SM4 = Solder plated *
SM5 = Solder dipped *
* = Lead free
Fundamental Frequency:
50.0MHz
Motional Resistance R (Ω):
60
Motional Capacitance C1 (fF):
1.2
QualityFactor Q (k):
44
Shunt Capacitance C0 (pF):
0.6
SM1
0.35
SM2
0.37
SM3
0.42
SM4
0.37
SM5
0.42
Glass
Lid
Dim. H
TERMINATIONS - PLATING
SM1
Gold Plated (Lead Free)
SM2
Solder Plated
SM3
Solder Dipped
SM4
Solder Plated (Lead Free)
SM5
Solder Dipped (Lead Free)
Designation
Termination


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