Data Sheet

QANTEK Technology Corporation
Phone: [phone] (tollfree) www.qantek.com
Fax: [phone] (tollfree) [e-mail]
QC7B Series
5x7 2-Pad SMD Quartz Crystal Unit
Features
• Low in height, suitable for thin equipment
• Ceramic package and metal lid assures high
reliability
• Tight tolerance and stability available
Mechanical Dimensions
Part Numbering Guide
Qantek
Code
Package
Nominal
Frequency
(in MHz)
Vibration
Mode
Load
Capacitance
Operating
Temperature
Range
Frequency
Tolerance
Frequency
Stability
Automotive
Indicator
Packaging
Q = Qantek
C7B = 5x7 2-Pad SMD
7 digits including
the decimal point
(f.ie. 12.0000)
F = AT-Fund S = Series
08 =8pF
12 = 12pF
18 = 18pF
20 = 20pF etc.
A = -20 to +70°C
B = -40 to +85°C
C = -40 to +105°C
D = -40 to +125°C
1 = ±10ppm
2 = ±20ppm
3 = ±30ppm
5 = ±50ppm
0 = ±100ppm
1 = ±10ppm
2 = ±20ppm
3 = ±30ppm
5 = ±50ppm
0 = ±100ppm
not available M = 250pcs Tape&Reel
R = 1000pcs Tape&Reel
Example: QC7B12.0000F12B33R bold letters = recommended standard specification
Applications
• High density applications
• Modem, communication and test equipment
• PMCIA, wireless applications
• Automotive applications
General Specifications
Frequency Range
6.000 to 150.000MHz
Mode of Oscillation Fundamental 6.000 to 48.000MHz
Third Overtone
40.000 to 150.000MHz
Frenquency Tolerance at 25°C
±10 to ±30ppm (±30ppm standard)
Frequency Stability over Temperature Range
See Stability vs. Temperature Table
Storage Temperature
-55 to +125°C
Aging per Year
±3ppm max.
Load Capacitance C
L
10 to 32pF and Series Resonance
Shunt Capacitance C
0
7.0pF max.
Equivalent Series Resistance (ESR) See ESR Table
Drive Level
100μW typ.
Insulation Resistance (MΩ)
500 at 100Vdc ±15Vdc
Equivalent Series Resistance (ESR)
Frequency Range - MHz
Ω max. Mode of Operation
6.000 to 10.000
110 Fundamental
10.100 to 12.000
60
12.100 to 20.000
45
20.100 to 48.000
30
40.000 to 150.000 60 Third Overtone
QC7B Rev. 0.2
Frequency Stability vs. Temperature
Operating Temperature ±10ppm ±20ppm ±30ppm ±50ppm ±100ppm
-20 to +70°C
    
-40 to +85°C **
   
-40 to +105°C - - -
 
-40 to +125°C - - - -

*Operating Temperature -30 to +80°C
 standard  available