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
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.
OUTLINE & DIMENSIONS
SPECIFICATION
FEATURES
Frequency Range 30kHz to 250kHz
High shock resistance
Low ageing
Designed for low power applications
Full MIL testing 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).
CX4VSM CRYSTAL
HOW TO ORDER CX4VSM CRYSTALS
CX4V - S
-
C
-
SM1
-
32.768K,
100
/
I
'S' if special,
custom design.
Otherwise leave
blank
Blank = glass lid
C = ceramic lid
Terminations
SM1 = Gold plated *
SM2 = Solder plated
SM3 = Solder dipped
SM4 = Solder plated *
SM5 = Solder dipped *
* = Lead free
Frequency
K = kHz
Calibration
Tolerance
@25°C
(in ppm)
Temp. Range
C = -10° ~ +70°C
I = -40° ~ +85°C
M = -55° ~ +125°C
S = Customer specified
30kHz to 250kHz
SM1
1.14
1.27
SM2
1.17
1.30
SM3
1.22
1.35
SM4
1.17
1.30
SM5
1.22
1.35
Glass
Lid
Ceramic
Lid
Dim. H
Ultra-Miniature SMD Crystal
Parameters
Fundamental
Overtone
Frequency (Hz):
32.768
100
200
Motional Resistance R1 (kΩ):
50
18
2.4
Motional Capacitance C1 (fF):
2.3
1.07
2.2
QualityFactor Q (k):
40
85
140
Load Capacitance (pF)1:
9
8
5
Turning Point (°C)1:
25
10
29
Specifications stated are typical at 25°C unless otherwise indicated.
Specifications may change without notice.
1.
Other values available
2.
Tighter tolerances available
Drive Level:
0.5W max.
Temperature Coefficient (k):
-0.035ppm/°C2
Ageing, first year:
5ppm max.
Note: Frequency f at temperature T is related to frequency Fo at
turning point temperature To by:
f-fo
fo
=k(T-To)2
Shock, survival:
5000g, 0.3ms, sine
Vibration, survival:
20g rms, 20~2000Hz random
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
Standard Calibration Tolerance for 32.768kHz (2)
Glass Lid:
±30ppm
(0.003%)
±100ppm
(0.01%)
±1000ppm
(0.1%)
Ceramic Lid:
±100ppm
(0.01%)
±1000ppm
(0.1%)
±10000ppm
(1.0%)