frequency qehc49-gw hc49 gull wing crystal ? smd packaged specifica tio n (re v - a ) electrical characteristics ...................................................... p01 esr vs. frequency range and mode of vibration .................. p01 mechanical characteristics ................................................... p01 ordering information ............................................................. p02 suggested reflow soldering profile ...................................... p02
qehc49-gw hc49 gull-wing cry stal ? smd packaged specifica tio n (rev -a ) jun e 27 th , 20 06 freque ncy 1 teme x r e se rv es th e r i g h t to mo di fy her ei n spe c i f i c a t i o n s an d in form a t i o n s a t any time w hen ne ce ssa r y to pr ov ide o p t im u m per form a n ce an d c o st. electrical characteristi c s electrical pa rameters unit minimum ty pi c a l maximum test c onditi ons freque nc y r a nge m h z 1 . 8 4 3 2 1 2 5 freque nc y t o lerance (at 25 c) ppm 10 30 50 refer to ordering information temperature stabilit y ppm 10 30 50 refer to ordering information opera t ing t e mpera t ure rang e c -20/ +70 -40/+85 refer to ordering information storag e tem p erature ran g e c -40 +85 shunt cap ac itance c 0 pf 7.0 load cap acitance pf 10pf ~ 32pf or serie s refer to ordering information driv e le v e l w 1 0 0 5 0 0 aging (firs t year) ppm 5 ref at 25 c insulator re s i stanc e m ? 500 at 100v dc custom ized specification upon request esr vs. frequency range a nd mode of vibration mechanical characteri stics 5.0 max 5.5 max ? 0.43 0.05 me c h a n ic a l condi tio n s vibra t ion 10g , 10hz to 2khz acco rd in g to stan d a rd cei 68-2- 63 sh o cks 100g , 6ms acc o r d i n g to stan d a rd cei 68-2- 27 not e 1 : qehc49-gw is fully ro hs com p li ant. marking for qehc49-gw line 1 vrsxx x (t em ex co d e ) line 2 fre que ncy in mhz (6 digits ) line 3 yyww ? pro d u c t ion c o de fre que ncy range (mhz) mode of v i bration max esr ( ? ) fre que ncy range (mhz) mode of v i bration max esr ( ? ) 1.843 2 to 1.99 9 fun d. 650 6.000 to 7.99 9 9 fun d. 50 2.000 to 2.99 9 fun d. 500 8.000 to 12.9 9 9 fun d. 35 3.000 to 3.49 9 fun d. 250 13.00 to 35.0 0 0 fun d. 25 3.500 to 3.99 9 fun d. 150 24.00 to 29.9 9 9 3rd 60 4.000 to 4.99 9 fun d. 100 30.00 to 79.9 9 9 3rd 40 5.000 to 5.99 9 fun d. 80 80.00 0 to 125. 000 5th 90
qehc49-gw hc49 gull-wing cry stal ? smd packaged specifica tio n (rev -a ) jun e 27 th , 20 06 2 teme x r e se rv es th e r i g h t to mo di fy her ei n spe c i f i c a t i o n s an d in form a t i o n s a t any time w hen ne ce ssa r y to pr ov ide o p t im u m per form a n ce an d c o st. freque ncy ordering information part n u m b e rin g system qehc49-gw 1 30 hq 50 16 25.00 0mhz pack ag e t y p e vibra t ion mode fre que ncy to leran ce op eratin g temp er atu r e ra nge fre que ncy stability loa d cap acitan c e nominal fre que ncy (mhz) smd pack ag e qehc49-gw : hc49 u gull wi ng 1 = f undament al 3 = 3 rd overtone 5 = 5 th overone 10= r 1 0pp m 30= r 3 0pp m 50= r 3 0pp m d=- 4 0c f= -30c h=- 2 0c j=-10c l=0c m=+50c n=+55c o=+60c q=+70c t=+85c 10= r 1 0pp m 30= r 2 0pp m 50= r 3 0pp m 10= 10 pf please, enter the value of load capacitance pleas e enter th e nomi nal freque nc y suggested reflow soldering profile
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