FREQUENCY
QESM49H4 / H2 / H32
HC49 SMD Crystal – SMD packaged
Specification (Rev-F)
Electrical Characteristics ......................................................P01
ESR vs. frequency range and Mode of vibration ..................P01
Mechanical Characteristics ...................................................P01
Ordering Information .............................................................P02
Suggested Reflow Soldering Profile .....................................P03
Tape and Reel Drawing ........................................................P03/P04
Frequency
QESM49H4 / H2 / H32
HC49 SMD Crystal – SMD packaged
Specification (rev-F)
June 30
th
, 2006
Electrical Characteristics
Electrical Parameters
Frequency range
(see Note 1)
Temperature Stability
Operating Temperature Range
Storage temperature range
Shunt capacitance C
0
Load capacitance
Drive level
Ageing (First Year)
Insulator resistance
Unit
MHz
± ppm
°C
°C
pF
pF
µW
± ppm
MΩ
500
100
-40
3.200
10
10
30
30
-20/+70
Customized specification upon request
Minimum Typical Maximum
75.000
50
50
-40/+85
+85
7.0
10pF ~ 32pF or series
500
5
Ref at 25°C
At 100V
DC
Refer to Ordering Information
Refer to Ordering Information
Refer to Ordering Information
Refer to Ordering Information
Test conditions
Frequency Tolerance
(at 25°C) ± ppm
Note 1 :
8 MHz is the minimum frequency for package QESM49H32
ESR vs. frequency range and Mode of vibration
Frequency range
(MHz)
3.200 to 4.499
4.500 to 5.999
6.000 to 6.999
7.000 to 7.999
8.000 to 8.999
Mode of vibration Max ESR (Ω)
Fund. / AT
Fund. / AT
Fund. / AT
Fund. / AT
Fund. / AT
150
120
100
90
80
Frequency range
(MHz)
9.000 to 9.999
10.000 to 12.999
13.000 to 30.000
30.000 to 75.000
27.000 to 40.000
Mode of vibration
Fund. / AT
Fund. / AT
Fund. / AT
3
rd
/ AT
3
rd
/ BT
Max ESR (Ω)
60
50
40
80
40
Mechanical Characteristics
1
TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
Frequency
QESM49H4 / H2 / H32
HC49 SMD Crystal – SMD packaged
Specification (rev-F)
June 30
th
, 2006
Heights (mm)
49H4
H = 5.0 max
49H2
H = 4.0 max
49H32
H = 3.2 max
Marking for SM94H4 / H2 / H32
Frequency in MHz (6 digits on the top)
ex: 10.000
Mechanical Conditions
Vibration 10g, 10 H to 2 kHz
according to standard
CEI68-2-63
Shocks
100g, 6 ms according to
standard CEI68-2-27
Note 1 :
QESM49H serie is fully RoHS compliant.
Ordering Information
QESM49H4
1
Part numbering system
30
HQ
50
20
25.000MHZ
Package type
Vibration
mode
1 = Fundamental
3 = 3
rd
Overtone
Frequency
tolerance
Operating
temperature
range
Frequency
stability
Load
Capacitance
16=16pF
Please, enter the
value of load
capacitance
Nominal
Frequency
(MHz)
Please enter the
nominal
frequency
QESM49H4 :
QESM49H2 :
QESM49H32 :
HC49 SMD packaged
10=±10ppm
30=±30ppm
50=±50ppm
D=-40°C
F= -30°C
H=-20°C
J=-10°C
L=0°C
M=+50°C
N=+55°C
O=+60°C
Q=+70°C
T=+85°C
10=±10ppm
30=±30ppm
50=±50ppm
2
TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
Frequency
QESM49H4 / H2 / H32
HC49 SMD Crystal – SMD packaged
Specification (rev-F)
June 30
th
, 2006
Suggested Reflow Soldering Profile
Tape Drawing
3
TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
Frequency
QESM49H4 / H2 / H32
HC49 SMD Crystal – SMD packaged
Specification (rev-F)
June 30
th
, 2006
Reel Drawing
Multiple
:
1000pcs per reel
4
TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
电机控制
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
