t c -26 & n c -38 series electrical specifications mechanical dimensions(mm) parabolic t emperature curve t c -26 n c -38 0.65 0.80 0.20 0.076( 2) 0.30 0.076( 2) 6.3max 8.28max -20 -10 -10 -20 -30 -40 -50 -60 0 10 20 30 40 50 60 70 4.0min 9.0min 2.1max 3.1max tuning fork q u ar tz cr y st al the tuning fork type quartz crystal provides ultimate in size, performance, and economic trade-offs. so it is used as a clock source in communication equipment, measuring instr- ument, microprocessor and other time man- agement application. fea tures miniature package low cost khz frequency t ight t olerance parameter symb condition min t yp max units frequency range frequency t olerance t emperature cofficient operating t emperature range storage t emperature range shunt capacitance motional capacitance load capacitance insulation resistance drive level aging(first year) equivalent series resistance(esr) f o / f o f k t opr t stg c o c 1 cl ir dl fa r s a t 25 ref t o 25 100v dc a t 25 3 dt-38 dt-26 30 10 -10 -20 1 6 500 -5.0 32.768 20 0.85 2 12.5 100 100 -0.042 +60 +70 2 4 series 1 +5.0 35 50 khz ppm ppm/( ) 2 pf ff pf m w ppm k k t o determine frequency stability , use parabolic curvature(k). for example: what is stability at 45 1).change in t( )=45-25=20 2).change in frequency = -0.042ppm*( ) = -0.042ppm*(20) = -16.8ppm(max) 2 2 f/f(ppm) t( c r y s t a l u n i t s 4 rsg electronic components rsg electronic components gmbh sprendlinger landstr. 115 d-63069 offenbach/germany tel. +49 69 984047-0 fax +49 69 984047-77 info@rsg-electronic.de www.rsg-electronic.de ?nderungen vorbehalten / subject to change without notice
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