FREQUENCY
QEHC49-GW
HC49 Gull Wing Crystal – SMD packaged
Specification (Rev-A)
Electrical Characteristics ......................................................P01
ESR vs. frequency range and Mode of vibration ..................P01
Mechanical Characteristics ...................................................P01
Ordering Information .............................................................P02
Suggested Reflow Soldering profile ......................................P02
Frequency
QEHC49-GW
HC49 Gull-Wing Crystal – SMD packaged
Specification (rev-A)
June 27
th
, 2006
Electrical Characteristics
Electrical Parameters
Frequency range
Temperature Stability
Operating Temperature Range
Storage temperature range
Shunt capacitance C
0
Load capacitance
Drive level
Aging (First Year)
Insulator resistance
Unit
MHz
± ppm
°C
°C
pF
pF
µW
± ppm
MΩ
500
100
-40
Minimum Typical Maximum
1.8432
10
10
30
30
-20/+70
125
50
50
-40/+85
+85
7.0
10pF ~ 32pF or series
500
5
Ref at 25°C
At 100V
DC
Customized specification upon request
Refer to Ordering Information
Refer to Ordering Information
Refer to Ordering Information
Refer to Ordering Information
Test conditions
Frequency Tolerance
(at 25°C) ± ppm
ESR vs. frequency range and Mode of vibration
Frequency range (MHz) Mode of vibration Max ESR (Ω) Frequency range (MHz) Mode of vibration Max ESR (Ω)
1.8432 to 1.999
2.000 to 2.999
3.000 to 3.499
3.500 to 3.999
4.000 to 4.999
5.000 to 5.999
Fund.
Fund.
Fund.
Fund.
Fund.
Fund.
650
500
250
150
100
80
6.000 to 7.9999
8.000 to 12.999
13.00 to 35.000
24.00 to 29.999
30.00 to 79.999
80.000 to 125.000
Fund.
Fund.
Fund.
3rd
3rd
5th
50
35
25
60
40
90
Mechanical Characteristics
Marking for QEHC49-GW
Line 1 VRSxxx (Temex code)
Line 2 Frequency in MHz (6 digits)
Line 3 YYWW – production code
5.5 max
Ø 0.43
±
0.05
Mechanical conditions
Vibration 10g, 10Hz to 2KHz
according to standard CEI
68-2-63
Shocks
100g, 6ms according to
standard CEI 68-2-27
5.0 max
1
Note 1 :
QEHC49-GW is fully
RoHS compliant.
TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
Frequency
QEHC49-GW
HC49 Gull-Wing Crystal – SMD packaged
Specification (rev-A)
June 27
th
, 2006
Ordering Information
QEHC49-GW
1
Part numbering system
30
HQ
50
16
25.000MHZ
Package type
Vibration
mode
1 = Fundamental
rd
3 = 3 Overtone
5 = 5
th
Overone
Frequency
tolerance
Operating
temperature
range
Frequency
stability
Load
Capacitance
10=10pF
Please, enter the
value of load
capacitance
Nominal
Frequency
(MHz)
Please enter the
nominal
frequency
SMD Package
QEHC49-GW :
HC49U Gull Wing
10=±10ppm
30=±30ppm
50=±30ppm
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=±20ppm
50=±30ppm
Suggested Reflow Soldering Profile
2
TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
Microchip MCU
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
