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| 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 W ppm M 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 25C 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 25C) ppm ESR vs. frequency range and Mode of vibration Frequency range (MHz) Mode of vibration Max ESR () Frequency range (MHz) Mode of vibration Max ESR () 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 O 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 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=-40C F= -30C H=-20C J=-10C L=0C M=+50C N=+55C O=+60C Q=+70C T=+85C 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. |
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