QUARTZ
CRYSTALS
IQD Frequency Products Ltd, Station Road, Crewkerne, Somerset TA18 8AR, United Kingdom
Tel: +44 (1460) 270200; Fax: +44 (1460) 72578;
Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com
CX-1-SM (8MHz to 250MHz)
ISSUE 7; 1 NOVEMBER 2008 – RoHS 2002/95/EC
Description
Statek’s CX-1-SM crystals are high quality chemically etched
▪resonators manufactured with a photo lithographic process
Holder Style
Hermetically sealed ceramic package with a glass or ceramic
▪lid
Terminations
SM1 - gold plated (lead free)
▪ – RoHS 2002/95/EC
SM2 - nickel solder plated
▪
SM3 - nickel solder dipped
▪
SM4 - solder plated (lead free)
▪ – RoHS 2002/95/EC
SM5 - solder dipped (lead free)
▪ – RoHS 2002/95/EC
Methods of Attachment
Vapor phase, infrared or silver epoxy
▪
General Specications
Load Capacitance (CL): 20pF < 50MHz, 10pF >50MHz
▪Other values available upon request
Static Capacitance (C0): 2.0pF to 3.5pF
▪
Drive Level: 500µW max for F<50MHz
▪200µW max for F>50MHz
Ageing: ±5ppm maximum rst year
▪
Packaging
Tray pack or tape and reel
▪
Standard Frequency Tolerances*
±100ppm, ±1000ppm, ±10000ppm
▪*Tighter tolerances available on request
Operating Temperature Ranges
–10 to 70°C = C
▪
–40 to 85°C = I
▪
–55 to 125°C = M
▪
Storage Temperature Range
–55 to 125°C
▪
Environmental Specication
Shock: 30000g, 0.3ms
▪1/2 sine
Vibration: 20g rms, 10 to 2000Hz random
▪
Marking Includes
Frequency
▪
Minimum Order Information Required
Frequency + Model + Terminations + Frequency Tolerance @
▪25°C + Operating Temperature Range + Circuit Condition
Outline (mm)
6.86
1.52
1.14
*
8.0
3.56
2.66
4.06
Solder pad layout
1.78
1.78
1.14
*
Package height:-
Glass lid Ceramic lid
SM1 1.65 1.78
SM2 1.70 1.83
SM3 1.78 1.90
SM4 1.70 1.83
SM5 1.78 1.90
Frequency Temperature Curve
–25
Temperature (°C)
–50
0
+25
+100
+25 +70
–20
f/f0 (ppm)
∆
QUARTZ
CRYSTALS
IQD Frequency Products Ltd, Station Road, Crewkerne, Somerset TA18 8AR, United Kingdom
Tel: +44 (1460) 270200; Fax: +44 (1460) 72578;
Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com
Electrical Specications – maximum limiting values
Frequency Range Frequency Tolerance
@25°C ±2°C
Operating Temperature
Range
Frequency Stability Available Over
Operating Temperature Range
Vibration
Mode
Model Number
Minimum Maximum
8.0 to 250.0MHz ±100ppm
±1000ppm
±10000ppm
–10 to 70°C ±10ppm ±100ppm Fundamental
AT cut
CX-1-SM
–40 to 85°C ±20ppm
–55 to 125°C ±30ppm
48.0 to 160.0MHz –10 to 70°C ±10ppm 3rd Overtone
–40 to 85°C ±20ppm
–55 to 125°C ±30ppm
Ordering Example 50.0MHz CX-1 OT C SM1 100 100 C 9pF
Frequency
Model No.
Blank = Fundamental; OT = 3rd Overtone
Blank = Glass lid; C = Ceramic Lid
Termination
Frequency Tolerance
Frequency Stability
Operating Temperature Range: –10 to 70°C = C; –40 to 85°C = I; –55 to 125°C = M
Load Capacitance (Circuit Condition) - if non-standard
Please note: other frequency tolerances may be available upon request
Tape (mm)
Ø13±0.5
40°
120°
2±0.5
Ø80±2.0
Ø180±0.5
20.2±1.0
16.4
Reel (mm)
4.0±0.1
8.4
0.35±0.02
2.44±0.1
4.0
8.0
Ø1.5±0.1 Ø1.5 min
1.75
7.5
16.0
2.0 min
Pads placed in
tape underside
