sm crystal phone: +86 (10) 5820-3910 fax: +86 (10) 5820-3915 email: sales@vanlong.com web: http://www.v anlong.com ? 2010 by vanlong technology co., ltd. hc49sd low profile sm resistance weld crystal hc49sd the hc49sd series is a miniature at or bt cut strip resonator crystal housed in low profile fo r surface mounting. the parts present a proven metal package technology with a precision molded base and universal c ontact configuration. rohs compliant specifications: hc49sd frequency range: 3.2 mhz ~ 40 mhz fundamental 20 mhz ~ 70 mhz overtone all dimensions are in mm operating temperature: 0 c ~ +50 c -a -10 c ~ +60 c -b -20 c ~ +70 c -c -40 c ~ +85 c -l storage temperature: -55 c ~ +125 c frequency tolerance: 50 ppm -50 (at 25 c) 30 ppm -30 20 ppm -20 10 ppm -10 frequency stability: 50 ppm -50 (over temperature range) 30 ppm -30 20 ppm -20 10 ppm -10 circuit condition: 10 pf ~ 32 pf or series equivalent series resistance: maximum resistance corresponds to frequency. please see esr table. drive level: 1.0 mw max shunt capacitance: 7 pf max ordering information aging: 5 ppm max per year product name + cl + operating temperature range + tolerance + stability + other code + frequency. i.e. hc49sd-20-c-30-30-f-24.000mhz optional features: fundamental -f 3 rd ,5 th ,7 th o.t. -3,5,7 tape & reel -tr note: 1. other frequencies, tolerances, stabilities, and operating temperature ranges available. consult vtc support for specific requirements. 2. not all combinations of the above tolerances, stabilities, and temperature ranges are available. consult vtc support if your requirement is not standard. 3. all specifications subject to change without notice.
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