QCS Series
HC-49/U-S SMD 2-Pad
Features
• Suitable for RoHS reflow
• Available for tight stability & extended tempe-
rature range
Applications
• Computers, Modems, Microprocessors
• Wireless 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
3.200 to 70.000MHz
3.200 to 32.768MHz
24.576 to 70.000MHz
±10 to ±30ppm (±30ppm standard)
See Stability vs. Temperature Table
-55 to +125°C
±3ppm max.
10 to 32pF and Series Resonance
7.0pF
See ESR Table
100µW typ. / 500µW max.
500 at 100Vdc ±15Vdc
Equivalent Series Resistance (ESR)
Frequency Range - MHz
3.200
3.500
4.000
6.000
7.000
9.000
to 3.499
to 3.999
to 5.999
to 6.999
to 8.999
to 9.999
Ω
max.
150
120
100
70
60
50
40
30
20
80
Third Overtone
Mode of Operation
Fundamental / AT
10.000 to 12.999
13.000 to 19.999
20.000 to 30.999
30.000 to 66.999
Frequency Stability vs. Temperature
Operating Temperature
-20 to +70°C
-40 to +85°C
-40 to +105°C
-40 to +125°C
standard
±10ppm
±20ppm
±30ppm
±50ppm
±100ppm
available
Mechanical Dimensions
Part Numbering Guide
Qantek
Code
Q = Qantek
Package
CS = HC-49/U-S SMD
=
2-Pad
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
Package
Option
H3 = 3.2mm
Packaging
M = 250pcs Tape&Reel
R = 1000pcs Tape&Reel
Example: QCS12.0000F18B35R
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
QCS Rev. 0.8
QCS Series
HC-49/U-S SMD 2-Pad
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
QCS Rev. 0.8
京公网安备 11010802033920号
EEWORLD
