CX-3-SM Datasheet, PDF (1/2 Pages) EUROQUARTZ limited – CX MINIATURE CRYSTALS

CX MINIATURE CRYSTALS
CX-3-SM
800kHz to 1.35MHz
LOW-PROFILE
MINIATURE
SMD CRYSTAL
Page
1 of 2
General Description
CX-3-SM quartz crystals are leadless devices designed for surface-
mounting on printed circuit boards or hybrid circuits. Hermetically
sealed in a rugged, ceramic package, the crystals are produced
utilizing a photo-lithographic process giving excellent repeatability
and consistent high quality.
Outline
D
A ^{(TO P)}
D
D
B
C
E
CX-3-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
EURO QUARTZ
Telephone: [phone]
Fax: [phone]
Email: [e-mail]
Web: www.euroquartz.co.uk
 Extensional mode
 Ideal for use with microprocessors
 Designed for low power applications
 Compatible with hybrid or PCB mounting
 Low ageing
 Full military environmental testing available
 Ideal for battery operated applications
Specification
Frequency Range:
800kHz to 1.35MHz
Functional Mode:
Extensional
Calibration Tolerance*:
A: ±0.05% (±500ppm)
B: ±0.1%
C: ±1.0%
Load Capacitance:
Motional Resistance (R):
Motional Capacitance (C):
Quality Factor (Q):
7pF
5kW max.
1.2fF
150k
Shunt Capacitance (C):
Drive Level:
1.0pF
3mW max.
Turning Point (T)**:
Temperature Coefficient (k):
35°C
-0.035ppm/°C²
Note: Frequency (f) deviation from frequency (f0) @ turning point
temperature (t0) =
f-fo
fo
=
k(T-To)
Ageing, first year:
±5ppm max.
Shock:
1,000g peak, 0.3ms, ½ sine
Vibration, survival:
10g rms 20-1,000Hz random
Operating Temperature:
-10°~+70°C (commercial)
-40°~+85°C (industrial)
-55°~+125°C (military)
Storage Temperature:
-55°C~+125°C
Max. Process Temperature:
260°C for 20 seconds
Specifications are typical at 25°C unless otherwise indicated.
*
Closer frequency calibration available
**
Other turning point available
Equivalent Circuit
1
L
C
R
2
C
R Motional Resistance L Motional Inductance
C Motional Capacitance C Shunt Capacitance
Terminations
Designation
SM1
SM2
SM3
Termination
Gold Plated
Nickel, Silver Plated
Nickel, Solder Plated and Solder Dipped