CX4 Datasheet, PDF (1/2 Pages) STATEK CORPORATION – Ultra-Miniature Low Profile Surface Mount Quartz Crystal

EURO QUARTZ
Ultra-miniature Low Profile SMD
CX4 CRYSTAL
FEATURES
Fundamental Mode: 600kHz to 1.4MHz
Designed for low power applications
Smallest available package in this frequency range
Hermetically sealed, ceramic package
Excellent ageing characteristics
Full Military testing available
Overtone: 1.8432MHz to 2.5MHz
DESCRIPTION
CX4 crystals are leadless devices designed for surface mounting on
PCBs or hybrid substrates. The crystal has been designed for low
power applications.
SPECIFICATION
Specifications stated are typical at 25°C unless otherwise indicated.
Specifications may change without notice.
Parameters
Frequency (Hz):
Motional Resistance R1 (kΩ):
Motional Resistance R1 Max. (kΩ):
Motional Capacitance C1 (Ff):
Quality Factor Q (k):
Shunt Capacitance C0 (pF):
Fundamental
Overtone
600K 1.0M 1.4M 1.8432M 2.4576M
300
400
600
500
3kΩ
1000
3.5
2.0
1.3
3.5
1.5
250
200
150
80
45
1.0
0.8
0.7
1.0
0.8
Standard Calibration Tolerance¹:
Drive Level:
Load Capacitance CL²:
Turning Point²:
Temperature Coefficient (k):
±500ppm (±0.5%)
±1000ppm (±0.1%)
±10000ppm (±1.0%)
3µW maximum
7pF
35°C
-0.035ppm/°C²
Note: Frequency f at temperature T is related to frequency Fo at
turning point temperature To by:
f-fo _=k(T-To)2
fo
Functional mode:
Ageing, First year:
Shock, survival:
Vibration, survival:
Operating Temperature Range
Commercial:
Industrial:
Military:
Storage Temperature Range:
Maximum Process Temperature:
Extensional
±5pppm maximum
1500g, 0.3ms, ½ sine
20g rms, 10~2000Hz random
-10° to +70°C
-40° to +85°C
-55 to +125°C
-55° to +125°C
+260°C for 20 seconds
1.
Tighter tolerance available
2.
Other values available
OUTLINE & DIMENSIONS
Dim. H
SM1
SM2
SM3
SM4
SM5
Glass
Lid
1.14
1.17
1.22
1.17
1.22
Ceramic
Lid
1.27
1.30
1.35
1.30
1.35
PACKAGING OPTIONS
CX4 crystals are available either tray packed (<250pcs) or tape and
reel (>250 pieces).
16mm tape, 178mm or 330mm reels (EIA 418).
HOW TO ORDER CX4 CRYSTALS
CX4 - S - C -
SM1 - 1.8432M, 500 / 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
M = MHz
Calibration
Tolerance
@25°C
(in ppm)
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: [phone] Fax: [phone] [e-mail] www.euroquartz.co.uk