CX4SMAT Datasheet, PDF (1/1 Pages) EUROQUARTZ limited – Available with glass or cermic lid

EURO QUARTZ
Ultra-Miniature SMD AT-Cut Crystal
CX4SM AT CRYSTAL
14MHz to 250MHz
FEATURES
Ultra-miniature, low profile (>1.2mm) ceramic package
Available with glass or cermic lid
Excellent ageing characteristics
High shock and vibration resistance
Full military testing available
OUTLINE & DIMENSIONS
DESCRIPTION
CX4SM AT crystals provide a reliable and rugged source of high
frequencies in an ultra-miniature package.
SPECIFICATION
Specifications stated are typical at 25°C unless otherwise indicated.
Specifications may change without notice.
Standard Calibration Tolerance¹: ±100ppm, or tighter as required
Load Capacitance:
10pF
Drive Level:
200µW max. for Fr. <50MHz
100µW max. for Fr. >50MHz
Frequency Stability^1,3
-10° to +70°C:
±50ppm to ±10ppm
-40° to +85°C:
±100ppm to ±20ppm
-55° to +125°C:
±100ppm to ±30ppm
Ageing First Year³:
±5ppm max. (Better than ±1ppm
available)
Shock, Survival⁴:
5000g, 0.3ms, ½ sine
Vibration, Survival⁵:
10g rms, 10~2000Hz swept sine
Operating Temperature Range: -10°C to +70°C (Commercial)
-40°C to +85°C (Industrial)
-55°C to +125°C (Military)
Storage Temperature Range:
-55° to +125°C
Maximum Process Temperature: +260°C for 20 seconds
1. Other tolerances available; contact Euroquartz sales.
2. Does not include calibration tolerance. Frequency stability
characteristics follow that of the AT thickness-shear mode.
3. ±5ppm max. for frequencies below 40MHz. For tighter
tolerances contact Euroquartz sales.
4. Higher shock verion available.
5. Per MIL-STD-202G, Method 204D, Condition D. Random
Random testing also available.
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
CX4SM AT crystals are available either tray packed (<250pcs) or tape
and reel (>250 pieces).
16mm tape, 178mm or 330mm reels (EIA 418).
TERMINATIONS - PLATING
Designation Termination
SM1
SM2
SM3
SM4
SM5
Gold Plated (Lead Free)
Solder Plated
Solder Dipped
Solder Plated (Lead Free)
Solder Dipped (Lead Free)
FREQUENCY-DEPENDENT SPECIFICATION TABLE
Fundamental Frequency
Motional Resistance R1 (Ω):
Motional Capacitance C1 (Ff):
Quality Factor Q (k):
Shunt Capacitance (C0 (pF):
14.745MHz 16MHz
60
75
1.4
1.5
120
90
0.8
0.9
20MHz
50
1.4
110
0.9
32MHz
30
2.5
70
1.1
40MHz
30
1.5
90
1.0
80MHz
30
1.8
40
1.0
160MHz
30
2.5
20
1.5
200MHz
40
2.0
15
1.5
HOW TO ORDER CX4SM AT CRYSTALS
CX4 - S - C - SM1 - 32.0M, 100 / 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
M = MHz
Calibration Frequency
Tolerance Stability over
@25°C temperature
(in ppm)* (in ppm)*
Temp. Range
C = -10° ~ +70°C
I = -40° ~ +85°C
M = -55° ~ +125°C
S = Customer specified
*Alternative 'total' tolerance (in ppm)
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: [phone] Fax: [phone] [e-mail] www.euroquartz.co.uk