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| LOW FREQUENCY, 32.768kHz CYLINDRICAL TYPE TUNING FORK CRYSTALS AB38T and AB26T 8.3 x 03.2 mm or 6.2 x 02.1 mm FEATURES: * Watch frequency. * Frequency range from 30kHz to 200kHz. * Excellent heat resistance. APPLICATIONS: * Real time clock. * Measuring instruments. * Clock source for communication or A / V equipment. STANDARD SPECIFICATIONS STANDAR PARAMETERS D SPECIFICATIONS AB38T Frequency Range Operating Temperature Storage Temperature Turnover Temperature Frequency Tolerance @ 25C Frequency Stability over Temp Equivalent Series Resistance (ESR) Shunt Capacitance C0 Load Capacitance CL (See Note ) Motion Capacitance C1 Drive Level Quality Factor Q Capacitance Ratio C0 / C1 Insulation Resistance o Aging @ 25 C First year 32.768kHz AB26T 32.768kHz 30kHz to 200kHz -10C to +60C (See Options) -40C to +85C 25C to 5C 20ppm max. 20ppm max.(32.768kHz) & 30ppm max.(others) -0.034 0.006ppm / (25-T)2 ** 30kW max. 35kW max.(32.768kHz) 35kW ~ 50KW (others) 1.6pF typical 0.8 to 1.7pF typical 12.5pF typical (See Options) 0.0035pF typ. 0.001 ~ 0.004pF typ. 1W max. 90,000 typical 70,000 typical 460 typical 425 - 800 typical 500 MW min. at 100 Vdc 15 V 3ppm max. 3ppm (32.768kHz) 5ppm (others) AB38T Dimensions: Inches (mm) AB26T Note : Custom CL upon request at 6 pF. Check with us for other CL value. ** Example: Stability at -20C is: -0.035 x [25-(-20)] 2 = -71ppm. Environmental, and mechanical specifications, see appendix C. Group 3. Marking, see appendix G. Recommended handling, see appendix F. Application notes, see appendix A. TYPICAL FREQUENCY TEMPERATURE CURVE -10 0 25 60 TEMP -VS- ORDERING OPTIONS ABXXT - Frequency - CL - Temperature - Tolerance 38 or 26 Load cap. in pF or -S for Series XX.XXXX kHz -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 -1 for 10ppm* -7 for 15ppm * Please call for availability. -50 ABRACON IS ISO 9001 / QS 9000 CERTIFIED NOTE: Left blank if standard * All specifications and markings subject to change without notice ABRACON 29 Journey * Aliso Viejo, CA 92656 * USA (949) 448-7070 * FAX: (949) 448-8484 E-MAIL: abinfo@ abracon.com * INTERNET ADDRESS: www.abracon.com (R) C O R P O R AT I O N 33 |
Price & Availability of AB38T
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