sm crystal phone: +86 10 6301 4184 fax: +86 10 6301 9167 email: sales@vanlong.com web: http://www.va nlong.com ? 2004 by vanlong technology co., ltd. HC49SD low profile sm resistance weld crystal 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. specifications: hc-49sd frequency range: 3.2 mhz ~ 40 mhz fundamental 20 mhz ~ 70 mhz overtone operating temperature: 0 c ~ +50 c -a -10 c ~ +60 c -b -20 c ~ +70 c -c -40 c ~ +85 c -l stora g e tem p e r ature: -55 c ~ +125 c frequency tolerance: 50 ppm -50 (at 25 c) 30 ppm -30 20 ppm -20 10 pp m -10 frequency stability: 50 ppm -50 (over temperature range) 30 ppm -30 20 ppm -20 10 pp m -10 circuit condition: 10 p f ~ 32 p f or series equivalent series resistance: maximum resistance corresponds to frequency. please see esr table. drive level: 1.0 mw max all dimensions are in mm shunt capacitance: 7 pf max ordering information aging: 5 ppm max per year 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. product name + cl + operating temperature range + tolerance + stability + other code + frequency. i.e. HC49SD-20-c-30-30-f-24.000mhz HC49SD
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