CX-3V-SM Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – 18 kHz to 600 kHz Miniature Surface Mount Quartz Crystal for Pierce Oscillators

CX MINIATURE CRYSTALS
CX-3V-SM
18kHz to 600kHz
MINIATURE
SMD CRYSTAL
Page
1 of 2
EURO QUARTZ
Telephone: [phone]
Fax: [phone]
Email: [e-mail]
Web: www.euroquartz.co.uk
General Description
The miniature CX-3V-SM crystals are leadless devices designed for
surface-mounting on printed circuit boards or hybrid substrates.
These crystals are intended for use in Pierce oscillators.
Hermetically sealed in a rugged, miniature ceramic package the
crystals are produced using a photo-lithographic process giving
repeatability and consistency.
 Miniature tuning fork design
 High shock resistance
 Designed for low power applications
 Compatible with hybrid or PCB mounting
 Low ageing
 Full military environmental testing available
 Ideal for battery operated applications
Specification
D
(TOP) _A
D
D
B
C
E
Outline
CX-3V-SM Package Dimensions
Dimension
A
B
C
D
E
Typical
(mm)
6.73
2.62
-
1.27
1.32
Maximum
(mm)
7.11
2.90
see below
1.52
1.57
Dimension Glass Lid Ceramic Lid
“C”
(mm max.) (mm max.)
SM1
SM2
SM3
1.47
1.52
1.60
1.75
1.80
1.88
Equivalent Circuit
1
L₁
C₁
R₁
C₀
Frequency Range:
Functional Mode:
Calibration Tolerance*:
Motional Resistance (R):
Motional Capacitance (C):
Quality Factor (Q):
Shunt Capacitance (C):
Drive Level:
Turning Point (T)**:
Temperature Coefficient:
Ageing, first year:
Shock***:
Vibration, survival:
Operating Temperature:
Storage Temperature:
Max. Process Temperature:
18kHz to 600kHz
Tuning Fork (Flexure)
A, B, or C (see below)
See Figure 1
Max: 18-25kHz, 2 x typ.
25-600kHz, 2.5 x typ.
See Figure 2
See Figure 3
min. is 0.25 x typ.
1.8pF max.
18-25kHz 0.5µW max.
25-600kHz 1.0µW max.
See Figure 4
-0.035ppm/°C
±5ppm max.
1,500g peak, 0.3ms, ½ sine
10g rms 20-2,000Hz random
-10°~+70°C (commercial)
-40°~+85°C (industrial)
-55°~+125°C (military)
-55°C~+125°C
260°C for 20 seconds
Specifications are typical at 25°C unless otherwise indicated.
*
Closer frequency calibration available
**
Other turning point available
*** A higher shock and vibration version is available.
CX-3V Crystal Calibration Tolerance at 25°C
Calibration
18~74.9
Frequency Range (kHz)
75~169.9 170~249.9
250~600
2
A
±0.003% ±0.005% ±0.01% ±0.02%
B
±0.01% ±0.01% ±0.02% ±0.05%
C
±0.1% ±0.1%
±0.2%
±0.5%
R₁ Motional Resistance L₁ Motional Inductance
C₁ Motional Capacitance C₀ Shunt Capacitance