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 27th, 2006
Electrical Characteristics
Electrical Parameters Frequency range Temperature Stability Operating Temperature Range Storage temperature range Shunt capacitance C0 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 100VDC 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
Line 1 Line 2 Line 3
Marking for QEHC49-GW VRSxxx (Temex code) Frequency in MHz (6 digits) 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.
TEME X r e se rv es th e r i g h t to m o di fy h er ei n s pe c i f i c a t i o n s a n d in form a t i o n s a t a ny t ime w hen ne ce ssa r y t o pr ov ide o p t im u m p er form a n ce an d c o st.
Frequency
QEHC49-GW
HC49 Gull-Wing Crystal – SMD packaged
Specification (rev-A) June 27th, 2006
Ordering Information
QEHC49-GW 1 30 Part numbering system HQ 50 16 25.000MHZ
Package type
Vibration mode 1 = Fundamental rd 3 = 3 Overtone 5 = 5th 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
TEME X r e se rv es th e r i g h t to m o di fy h er ei n s pe c i f i c a t i o n s a n d in form a t i o n s a t a ny t ime w hen ne ce ssa r y t o pr ov ide o p t im u m p er form a n ce an d c o st.
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