crystal specification customer approval : ~?3? / sale department tel: (04)25347909 fax: (04)25327885 / 25337396 url http://www.siward.com.tw ?~??o?3? / quality assurance dept. tel: (04)25347909 ext 1340/1341 ??o3? /r & d dept. tel: (04)25347909 ext 1533 address:1-1,lane 111,jung-shan rd.,sec.3, tantzu hsing,taichung 427,taiwan,r.o.c. date : 2010/10/28 approved by : checked by : designer : spec. no.: g47-247 customer : ???ta?|3--?q customer p/n : agent : agent code : siward p/n : XTL571200-G47-247 free datasheet http:///
rev. description of revision history date designer checked by 1 2009/12/07 scott tom new publication 2 2009/12/17 sally tom load capacitance before changed : 20 pf.(k0912-007) spec. no.: g47-247
crystal specification 1. description : quartz crystal 2. nominal frequency : 25.000000 mhz 3. center frequency : 25.000000 mhz 4. dimension & drawing no. : sx-3225 ; sxd-00213 5. oscillation mode : fundamental 6. cutting mode : at cut 7. packing style : tp-094 8. measurement instrument : s&a 250b(measured fl) 9. electrical characteristics : [1] operating conditions : item symbol min. typ. max. unit condition operating temperature range topt -10 95 j storage temperature range tstg -40 95 j load capacitance cl 10 pf drive level dl 100 w [2] frequency stability : item symbol min. typ. max. unit condition tolerance df/fo -20 20 ppm refer to center frequency @253 j stability over temperature df/f25 -20 20 ppm refer to operating temperature aging df/f25 -3 3 ppm per year df/fo: frequency deviation refer to center frequency df/f25: frequency deviation refer to 25 frequency j spec. no.: g47-247
[3] electrical performance : item symbol min. typ. max. unit condition equivalent series resistance esr 60 ? @series shunt capacitance co 5 pf spurious spdb 3 db @fo+300khz insulation resistance ir 500 m ? @dc 100 volt 10. marking : laser *marking : d ->year c -> month year : 1 2 3 4 5 6 7 8 9 0 code : a b c d e f g h j k month: 1 2 3 4 5 6 7 8 9 10 11 12 code : a b c d e f g h j k l m 25.0 s dc 11. remark : *lead free, rohs compliant spec. no.: g47-247
dimensions structure illustration part name material part name material 1. base ceramic 4. electrode metal 2. lid co 5. adhesmes silver glue 3. blank quartz land pattern (reference)
reliability specification refer to jis c 6701 1. environmental performance item condition 1. dry heat(aging) stored at 85 2 for 720 12h. then 25 2 over 2h before testing. 2. cold stored at C 40 2 for 500 12h. then 25 2 over 2h before testing. 3. damp heat stored at 60 2 and humidity 90 ? 95% for 500 12 h. then 25 2 over 2h before testing. 4. temperature cycle the crystal unit shall be subjected to 100 successive change of temperature cycles, then 25 2 over 2h before testing, each cycle as bellow temperature duration 1. -40+0/-6 30 3 minutes 2. 25 2 2 ? 3 minutes 3. 85+4/-0 30 3 minutes 4. 25 2 2 ? 3 minutes 2. mechanical performance item condition 5. solderability the lead is immersed in a 260 5 solder bath within 20.6 seconds. 6. resistance to soldering heat reflow chart as attach sheet. twice pass. 7. free fall free dropping from 75 cm height 3 times on a hard wooden board. 8. vibration frequency 10 ? 55hz, amplitude (total excursion) 1.5mm 15%, sweep time 1min, 3 direction(x, y, z) each 2h. 9. sealing mass-spectrometer-type leak detector shall be used to measure the leakage rate of gas through any faulty seal. 10. terminal strength shall be pressurized at a speed of approx.0.5mm/sec in the direction indicated by the arrow until the bending width reaches 3mm and held for 5 seconds.
11. sticking tendency a r0.5 jig shall be used to apply a 10n dead load in the direction indicated by the arrow to the element and retain it for 10 seconds. 12. element assembly strength a r0.5 pressurized bar shall be used to apply a 10n load in the center of element and retain it for 10 seconds. suggested reflow profile application\temperature time t1 / t1 t2 / t2 lead free 2605 / 10 sec max 225min / 60 sec max non lead free 2405 / 10 sec max 200min / 40 sec max solderin g slow cooling preheating 150 10 % soldering temperature
packing 1. carrier type 2. reel 3000 pcs 3. label
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