note: left blank if standard ? all specifications and markings subject to change without notice 29 journey aliso viejo, ca 92656 usa (949) 448-7070 f ax : (949) 448-8484 e- mail : abinfo @ abracon.com i nternet a ddress : www.abracon.com abracon is iso 9001 / qs 9000 certified corporation abracon -25- ? low frequency, cylindrical type watch crystals 32.768 khz ab38t and ab26t s s t t a a n n d d a a r r d d s s p p e e c c i i f f i i c c a a t t i i o o n n s s s s t t a a n n d d a a r r d d s s p p e e c c i i f f i i c c a a t t i i o o n n s s 32.768 khz frequency range 32.768 khz 30 khz to 200 khz operating temperature -10c to + 60c (see options) storage temperature -40c to + 85c turnover temperature 25c to 5c frequency tolerance @ 25c 20 ppm max. (32.768 khz) & 30ppm(other) frequency stability over temp -0.034 0.006 ppm / (25-t) 2 equivalent series resistance (esr) 30 k ? max. 35 k ? max.(32.768khz)(other) 35 k ? max. - 50khz)(other) shunt capacitance c 0 1.6 pf typical 0.8 to 1.7 pf typical load capacitance c l (see note 1) 12.5 pf typical (see options) motion capacitance c 1 0.0035 pf typical 1 - 4 pf typical drive level 1 w max. quality factor q 90,000 typical 70,000 typical capacitance ratio c 0 / c 1 460 typical 425 - 800 typical insulation resistance: 500 m ? min. at 100 vdc 15 v aging @ 25c first year 3 ppm max. ( 32.768 khz) & 5ppm (other) abx x t - frequency - cl - t emperature -t olerance - v alue added - packaging 38 or 26 xx.xxxx khz -1 for 10 ppm ( * ) -7 for 15 ppm - t (tape & reel) - ty (tray packing) load cap. in pf or - s for series -m = (smt formed leads) found on page 72 -e for 0c to + 70c -b for -20c to + 70c -c for -30c to + 70c -n for -30c to + 85c -d for -40c to + 85c o o r r d d e e r r i i n n g g o o p p t t i i o o n n s s o o r r d d e e r r i i n n g g o o p p t t i i o o n n s s please see environmental, and mechanical specifications on page 68, group 3. marking, see page 77. dimensions: inches (mm) typical frequency - vs - temperature curve ab38t ab26t parameters ab38t ab26t note 1: custom c l upon request at 6 pf. check with us for other c l value. (*) example: stability at -20c is: -0.035 x [25-(-20)] 2 = -71 ppm. applications: real time clock. measuring instruments. clock source for communication or a / v equipment. features: watch frequency. formed leads, low profile (-m). frequency range from 30 khz to 200 khz. excellent heat resistance. 0 -10 25 60 -50 temp ( * ) please call for availability.
|
