QC7A Series
5x7 4-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
Applications
• High density applications
• Modem, communication and test equipment
• PMCIA, wireless applications
• Automotive applications
General Specifications
Frequency Range
Mode of Oscillation
Frequency Tolerance at 25°C
Frequency Stability over Temperature Range
Storage Temperature
Aging per Year
Load Capacitance C
L
Shunt Capacitance C
0
Equivalent Series Resistance (ESR)
Drive Level
Insulation Resistance (MΩ)
Fundamental
Third Overtone
5.500 to 150.000MHz
6.000 to 48.000MHz
40.000 to 150.000MHz
±10 to ±50ppm (±30ppm standard)
See Stability vs. Temperature Table
-55 to +125°C
±3ppm max.
10 to 32pF and Series Resonance
7.0pF max.
See ESR Table
100μW typ.
500 at 100Vdc ±15Vdc
Equivalent Series Resistance (ESR)
Frequency Range - MHz
5.500
to 10.000
10.001 to 12.000
12.001 to 16.000
16.001 to 20.000
20.001 to 60.000
40.000 to 80.000
80.001 to 150.000
Ω
max.
100
60
50
45
30
80
60
Third Overtone
Mode of Operation
Fundamental
Frequency Stability vs. Temperature
Operating Temperature
-20 to +70°C
-40 to +85°C
-40 to +105°C
-40 to +125°C
*Operating Temperature -30 to +80°C
±10ppm
*
*
±20ppm
-
-
±30ppm
-
-
±50ppm
-
±100ppm
standard
available
-
-
Mechanical Dimensions
Part Numbering Guide
Qantek
Code
Q = Qantek
Package
C7A = 5x7 4-Pad SMD
Nominal
Frequency
(in MHz)
7 digits including
the decimal point
(f.ie. 12.0000)
Vibration
Mode
F = AT-Fund
Load
Capacitance
S = Series
08 = 8pF
12 = 12pF
18 = 18pF
20 = 20pF etc.
Operating
Temperature
Range
A = -20 to +70°C
B = -40 to +85°C
C = -40 to +105°C
D = -40 to +125°C
Frequency
Tolerance
1 = ±10ppm
2 = ±20ppm
3 = ±30ppm
5 = ±50ppm
0 = ±100ppm
Frequency
Stability
1 = ±10ppm
2 = ±20ppm
3 = ±30ppm
5 = ±50ppm
0 = ±100ppm
Automotive
Indicator
A = AEC-Q200
Packaging
M = 250pcs Tape&Reel
R = 1000pcs Tape&Reel
Example: QC7A12.0000F12B33R
bold letters = recommended standard specification
QANTEK Technology Corporation
Phone: +1 877-227-0440 (tollfree)
Fax:
+1 877-227-0440 (tollfree)
www.qantek.com
info@qantek.com
QC7A Rev. 0.5
QC7A Series
5x7 4-Pad SMD Quartz Crystal Unit
Tape and Reel Dimensions
Marking Code Guide
Contains frequency, Qantek manufacturing code, production code (month and year) and load capacitance.
Month Codes
January
February
March
April
May
June
A
B
C
D
E
F
July
August
October
November
December
G
H
J
K
L
Year Codes
2017
2020
2023
7
0
3
2018
2021
2024
8
1
4
2019
2022
2025
9
2
5
Load Capacitance Code in pF
pF
12
18
8
10
16
PN Code
A
B
C
D
E
pF
20
22
30
32
S
PN Code
F
G
H
I
S
September I
Example:
First Line: 12.000
(Frequency)
Second Line: QA8A
(Qantek - January - 2018 - 12 pF)
Solder Reflow Profile
Environmental Specifications
Mechanical Shock
Vibration
Thermal Cycle
Gross Leak
Fine Leak
MIL-STD-202, Method 213, C
MIL-STD-202, Method 201 & 204
MIL-STD, Method 1010, B
MIL-STD-202, Method 112
MIL-STD-202, Method 112
All specifications are subject to change without notice.
QANTEK Technology Corporation
Phone: +1 877-227-0440 (tollfree)
Fax:
+1 877-227-0440 (tollfree)
www.qantek.com
info@qantek.com
QC7A Rev. 0.5
Special Edition for Assessment Centres
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