EURO
QUARTZ
Ultra-Miniature SMD Crystal
FEATURES
Frequency Range 30kHz to 250kHz
High shock resistance
Low ageing
Designed for low power applications
Full MIL testing available
CX4VSM CRYSTAL
30kHz to 250kHz
OUTLINE & DIMENSIONS
DESCRIPTION
CX3VSM crystals are leadless devices designed for surface mounting
on PCBs or hybrid substrates. The crystals are intended for use in
Pierce (single inverter) oscillator circuits.
SPECIFICATION
Specifications stated are typical at 25°C unless otherwise indicated.
Specifications may change without notice.
Parameters
Frequency (Hz):
Motional Resistance R1 (kΩ):
Motional Capacitance C1 (fF):
QualityFactor Q (k):
Load Capacitance (pF)
1
:
Turning Point (°C)
1
:
Fundamental
32.768
50
2.3
40
9
25
100
18
1.07
85
8
10
Overtone
200
2.4
2.2
140
5
29
Standard Calibration Tolerance for 32.768kHz (2)
Glass Lid:
Ceramic Lid:
±30ppm
(0.003%)
±100ppm
(0.01%)
±100ppm
(0.01%)
±1000ppm
(0.1%)
±1000ppm
(0.1%)
±10000ppm
(1.0%)
Dim. H
SM1
SM2
SM3
SM4
SM5
Glass
Lid
1.14
1.17
1.22
1.17
1.22
Ceramic
Lid
Drive Level:
Temperature Coefficient (k):
Ageing, first year:
0.5µW max.
-0.035ppm/°C
2
5ppm max.
1.27
1.30
1.35
1.30
1.35
Note: Frequency f at temperature T is related to frequency Fo at
turning point temperature To by:
f-fo
=k(T-To)
2
fo
Shock, survival:
Vibration, survival:
Operating Temperature Range
Commercial:
Industrial:
Military:
Storage Temperature Range:
Maximum Process Temperature:
1.
2.
5000g, 0.3ms, ½ sine
20g rms, 20~2000Hz random
-10° to +70°C
-40° to +85°C
-55 to +125°C
-55° to +125°C
+260°C for 20 seconds
Other values available
Tighter tolerances available
PACKAGING OPTIONS
CX4VSM crystals are available either tray packed (<250pcs) or tape
and reel (>250 pieces).
16mm tape, 178mm or 330mm reels (EIA 418).
HOW TO ORDER CX4VSM CRYSTALS
CX4V - S
'S' if special,
custom design.
Otherwise leave
blank
-
C
Blank = glass lid
C = ceramic lid
-
SM1
-
32.768K,
Frequency
K = kHz
100
Calibration
Tolerance
@25°C
(in ppm)
/
I
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
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
EUROQUARTZ [ EUROQUARTZ LIMITED ]
