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參數資料
| 型號： | CX4-C-SM3-2.4576M,10000/M |
| 廠商： | EUROQUARTZ LTD |
| 元件分類： | 晶體 |
| 英文描述： | QUARTZ CRYSTAL RESONATOR, 2.4576 MHz |
| 封裝： | HERMETIC SEALED, ULTRA MINIATURE, CERAMIC, SMD, 2 PIN |
| 文件頁數： | 1/2頁 |
| 文件大小： | 143K |
| 代理商： | CX4-C-SM3-2.4576M,10000/M |
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
CX4 crystals are leadless devices designed for surface mounting on
PCBs or hybrid substrates. The crystal has been designed for low
power applications.
OUTLINE & DIMENSIONS
SPECIFICATION
FEATURES
Designed for low power applications
Smallest available package in this frequency range
Hermetically sealed, ceramic package
Excellent ageing characteristics
Full Military testing available
PACKAGING OPTIONS
CX4 crystals are available either tray packed (<250pcs) or tape and
reel (>250 pieces).
16mm tape, 178mm or 330mm reels (EIA 418).
CX4 CRYSTAL
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
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 Low Profile SMD
Parameters
Fundamental
Overtone
Frequency (Hz):
600K
1.0M
1.4M
1.8432M
2.4576M
Motional Resistance R1 (kΩ):
300
400
600
500
1000
Motional Resistance R1 Max. (kΩ):
3kΩ
Motional Capacitance C1 (Ff):
3.5
2.0
1.3
3.5
1.5
Quality Factor Q (k):
250
200
150
80
45
Shunt Capacitance C0 (pF):
1.0
0.8
0.7
1.0
0.8
Specifications stated are typical at 25°C unless otherwise indicated.
Specifications may change without notice.
1.
Tighter tolerance available
2.
Other values available
Standard Calibration Tolerance1:
±500ppm (±0.5%)
±1000ppm (±0.1%)
±10000ppm (±1.0%)
Drive Level:
3W maximum
Load Capacitance CL2:
7pF
Turning Point2:
35°C
Temperature Coefficient (k):
-0.035ppm/°C2
Note: Frequency f at temperature T is related to frequency Fo at
turning point temperature To by:
f-fo
fo
=k(T-To)2
Functional mode:
Extensional
Ageing, First year:
±5pppm maximum
Shock, survival:
1500g, 0.3ms, sine
Vibration, survival:
20g rms, 10~2000Hz 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
Fundamental Mode: 600kHz to 1.4MHz
Overtone: 1.8432MHz to 2.5MHz
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