Data Sheet

EURO QUARTZ
CX11SM CRYSTAL
32.768kHz, 100kHz to 180kHz
Ultra-Miniature SMD Crystal
FEATURES
OUTLINE & DIMENSIONS
Frequency Range 32.768kHz and 100kHz to 180kHz
High shock resistance
Ultra-small ceramic package
Low ageing
Designed for low power applications
Full MIL testing available
DESCRIPTION
CX11SM crystals are leadless devices designed for surface mounting
on PCBs or hybrid substrates. The crystals have very small outline and
low-profile and are suited for all low frequency applications.
SPECIFICATION
Specifications stated are typical at 25°C unless otherwise indicated.
Specifications may change without notice.
Parameters
Fundamental
Frequency (kHz):
32.768
100.0
Motional Resistance R1 (kΩ):
50
20
Motional Capacitance C1 (fF):
3.5
1.0
QualityFactor Q (k):
25
70
Shunt Capacitance C0 (pF):
1.0
0.8
Load Capacitance (pF)1:
9
9
Mass (Ceramic lid, SM1)
12mg
12mg
Dim. H
Glass
Lid
25
18
±20ppm
±100ppm
SM1
SM2
SM3
SM4
SM5
0.74
0.77
0.81
0.77
0.81
Turover Temperature (°C)2,3:
Calibration Tolerance4:
Drive Level:
Freq./Temperature Constant (k):
Ageing, first year:
Shock, Survival:
Vibration, survival:
Operating Temperature Range
Commercial:
Industrial:
Military:
Storage Temperature Range:
Maximum Process Temperature:
1.
2.
3.
4.
0.5µW max.
-0.035ppm/°C2
3ppm maximum
5,000g, 0.3ms, ½ sine
20g rms, 10~2000Hz swept sine
Ceramic Thin Glass
Lid
Lid
Termination
SM1
SM2
SM3
SM4
SM5
Other load capacitance values are available.
The crystal frequency f as a function of temperature T follows
the parabolic relationship:
f(T)=f(T0) [1 + k(T T0)2]
where T0 is the turnover tmperature na dk is the frequencytemperature constant.
Other turnover temperature available.
Tighter tolerances available.
0.77
0.79
0.71
0.79
0.71
TERMINATIONS - PLATING
Designation
-10° to +70°C
-40° to +85°C
-55 to +125°C
-55° to +125°C
+260°C for 20 seconds
0.77
0.79
0.84
0.79
0.84
Gold Plated (Lead Free)
Solder Plated
Solder Dipped
Solder Plated (Lead Free)
Solder Dipped (Lead Free)
CRYSTAL EQUIVALENT CIRCUIT
PACKAGING OPTIONS
CX11SM crystals are available either tray packed (<250pcs) or tape
and reel (>250 pieces).
12mm tape, 178mm or 330mm reels (EIA 418).
R1 Motional Resistance
C1 Motional Capacitance
L1 Motional Inductance
C0 Shunt Capacitance
HOW TO ORDER CX11SM 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
32.768K, 100 /
Frequency
K = kHz
Calibration
Tolerance*
A
B
C
I
Temp. Range
C = -10° ~ +70°C
I = -40° ~ +85°C
M = -55° ~ +125°C
S = Customer specified
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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