Data Sheet

EURO QUARTZ
CX2HSM CRYSTAL
Miniature SMD Crystal for Series Oscillators
16kHz to 600kHz
FEATURES
Frequency Range 16kHz to 600kHz
High shock resistance
Low ageing
Designed for low power applications
Full MIL testing available
OUTLINE & DIMENSIONS
Typ.
Dim.
A
B
C
D
E
F
G
H
I
DESCRIPTION
CX2HSM crystals consist of a high quality tuning fork resonator in a
rugged, hermetically sealed ceramic package. CX2HSM crystals are
intended for use in Series (two cascaded inverters) oscillator circuits.
SPECIFICATION
Specifications stated are typical at 25°C unless otherwise indicated.
Specifications may change without notice.
Frequency Range:
16.0kHz to 600.0kHz
Standard Calibration Tolerance*: see table
Motional Resistance (R1):
Figure 1
Max = 16~169.9kHz, 2x typical
170~600kHz, 2.5x typical
Motional Capacitance (C1):
Figure 2
Quality Factor (Q):
Figure 3
Min. is 0.25x typical
Shunt Capacitance (C0):
2.0pF max.
Drive Level
16~24.9kHz:
1.5µW max.
25~600.0kHz: 3.0µW max.
Turning Point (T0)**:
Figure 4
Temperature Coefficient (k):
-0.035ppm/°C2
Ageing, first year:
5ppm max.
Shock, survival***:
1,500g, 0.3ms, ½ sine
Vibration, survival***:
10g rms, 20~2000Hz
Operating Temperature Range
Commercial:
-10° to +70°C
Industrial:
-40° to +85°C
Military:
-55 to +125°C
Storage Temperature Range:
-55° to +125°C
Maximum Process Temperature:
+260°C for 20 seconds
Max.
6.60
6.99
2.39
2.74
see below
0.89
1.14
1.50
1.75
1.27
1.52
2.67
2.92
3.94
4.19
5.33
5.59
Dim. C
Glass
Lid
Ceramic
Lid
SM1
SM2
SM3
SM4
SM5
1.65
1.70
1.78
1.70
1.78
1.91
1.96
2.03
1.96
2.03
STANDARD CALIBRATION TOLERANCE
Frequency Range (kHz)
16~74.9
75~169.9
±30ppm
(0.003%)
±100ppm
(0.01%)
±1000ppm
(0.1%)
±50ppm
(0.005%)
±100ppm
(0.01%)
±1000ppm
(0.1%)
170~249.9
±100ppm
(0.01%)
±200ppm
(0.02%)
±2000ppm
(0.2%)
250~600
±200ppm
(0.02%)
±500ppm
(0.05%)
±5000ppm
(0.5%)
* Tighter frequency calibration is available.
** Other turning point is available
*** Higher shock and vibration survival is available
PACKAGING OPTIONS
CX2HSM crystals are available either tray packed (<250pcs) or tape
and reel (>250 pieces).
16mm tape, 178mm or 330mm reels (EIA 418).
HOW TO ORDER CX2HSM CRYSTALS
CX2H - 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
30
Frequency
K = kHz
Calibration
Tolerance
@25°C
(in ppm)
/
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
EURO QUARTZ
CX2HSM CRYSTAL
Miniature SMD Crystal for Series Oscillators
CRYSTAL EQUIVALENT CIRCUIT
R1 Motional Resistance
C1 Motional Capacitance
16kHz to 600kHz
FIGURE 1
CX2H Typical Motional Resistance R1
L1 Motional Inductance
C0 Shunt Capacitance
CONVENTIONAL SERIES OSCILLATOR CIRCUIT
FIGURE 2
CX1H Typical Motional Capacitance C1
TERMINATIONS - PLATING
Designation
SM1
SM2
SM3
SM4
SM5
FIGURE 3
CX2H Typical Quality Factor (Q)
Termination
Gold Plated (Lead Free)
Solder Plated
Solder Dipped
Solder Plated (Lead Free)
Solder Dipped (Lead Free)
FIGURE 4
CX2H Typical Turning Point Temperature (To)
Turning Point Temperature
Note: Frequency f at temperature T is related to frequency F0 at
turning point temperature To by:
f-fo
=k(T-To)2
fo
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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