FREQUENCY
QESM405
HC49 SMD 4 pins Crystal SERIES – Microprocessor Application
Specification (Rev-D)
Electrical Characteristics ......................................................P01
Mechanical Characteristics ...................................................P01
Internal Connection ..............................................................P02
ESR vs Frequency range .....................................................P02
Ordering Information .............................................................P02
Tape Drawing........................................................................P03
Reel Drawing ........................................................................P03
Frequency
QESM405
HC49 SMD 4 Pins Crystal SERIES – Microprocessor Application
Specification (rev-D)
January 27
th
, 2006
Electrical Characteristics
Electrical Parameters
Frequency range
Frequency tolerance at
25°C
Frequency stability
Operating temperature
range
(see table 1)
Storage temperature
range
Shunt capacitance C0
Load capacitance
Drive Level
Aging (First Year)
Insulation Resistance
Unit
MHz
±ppm
±ppm
°C
°C
pF
pF
µW
± ppm
MΩ
500
-40
Minimu
m
3.579
10
10
30
30
-10 to +70
Typical
Maximum
60
50
50
-40 to +85
+85
7.0
10pF ~ 30pF or series
100
500
5
Ref at 25°C
Ref at 100Vdc
Refer to Ordering
Information
Refer to Ordering
Information
Refer to Ordering
Information
Refer to Ordering
Information
Test conditions
Mechanical Characteristics
BOTTOM VIEW
SUGGESTED PAD
Hmax
= 4.2 mm
Marking
QESM405 A + Frequency in MHz
(6 digits on the top)
QESM406 B + Frequency in MHz
(6 digits on the top)
QESM407 C + Frequency in MHz
(6 digits on the top)
1
TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
Frequency
QESM405
HC49 SMD 4 Pins Crystal SERIES – Microprocessor Application
Specification (rev-D)
January 27
th
, 2006
Internal Connection
QESM405
QESM406
QESM407
ESR vs Frequency range
Table 1 : ESR vs frequency range
Mode of
Max. ESR
Frequency
vibration
(Ω)
range (MHz)
Fund. / AT
150
9.001 ~ 10.000
Fund. / AT
120
10.001 ~ 13.000
Fund. / AT
100
13.001 ~ 30.000
Fund. / AT
90
30.000 ~ 60.000
Fund. / AT
80
Frequency
range (MHz)
3.579 ~ 5.000
5.001 ~ 6.000
6.001 ~ 7.000
7.001 ~ 8.000
8.001 ~ 9.000
Mode of
vibration
Fund. / AT
Fund. / AT
Fund. / AT
rd
3 / AT
Max. ESR
(Ω)
60
50
40
80
Ordering Information
QESM405
1
Part numbering system
30
HQ
50
30
3.57954MHZ
Package type
Vibration mode
Frequency
tolerance
10 : ± 10ppm
30 : ± 30ppm
50 : ± 50ppm
Operating
temperature
range
Frequency
stability
10 : ± 10ppm
30 : ± 30ppm
50 : ± 50ppm
Load
capacitance
00 : series
10 : 10pF
30 : 30pF
Please, enter
the value of
load
capacitance
Nominal
Frequency
(MHz)
Please enter the
nominal frequency
HC49 SMD 4 Pins
Package
QESM405
QESM406
QESM407
1 : Fundamental
3 : 3rd Overtone
D : -40°C
F : -30°C
J : -10°C
L : 0°C
M : +50°C
N : +55°C
O : +60°C
Q : +70°C
T : +85°C
2
TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
Frequency
QESM405
HC49 SMD 4 Pins Crystal SERIES – Microprocessor Application
Specification (rev-D)
January 27
th
, 2006
Tape Drawing
Item
Pitch of components
Pitch of sprocket hole
Length from hole center to component center
Width of carrier tape
Width of adhesive tape
Height of component hole
Width of component hole
Gap of hold down tape and carrier tape
Diameter of sprocket hole
Diameter of feed hole
Total of tape thickness
Code
P
Po
P1
W
W0
A
B
W2
Do
D1
K
Dimension
12.0
4.0
2.0
24.0
11.5
13.4
5.20
1.75
∅
1.55
∅
2.0
5.2 or 4.3
Tolerance
± 0.1
± 0.1
± 0.1
± 0.3
± 0.1
± 0.1
± 0.1
± 0.1
± 0.05
± 0.2
± 0.1
Reel Drawing
24.5
Multiple
: 1Kpcs per Reel
Unit : mm
Ø 100
2.5
3
TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
Ø 330
TI技术论坛
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
