824 Horan Drive, Fenton, Mo 63026
(636) 343-6463
(636) 343-7026 fax

Abracon Corporation

Low Frequency, 32.768kHz Cylindrical Type, Tuning Fork Crystals
Features: Watch frequency. Frequency range from 30kHz to 200kHz. Excellent heat resistance. Applications: Real time clock. Clock source for communications or A/V equipment. Measuring instruments.	AB38T AB26T 8.3 x Ø3.8mm or 6.2 x Ø2.1mm
Standard Specifications - AB38T and AB26T Parameters AB38T AB26T Frequency Range 32.768kHz 32.768kHz 30kHz to 200kHz Operating Temperature -10°C to +60°C Turnover Temperature -10°C to +60°C Storage Temperature 25°C to +5°C Frequency Tolerance @ 25°C +20ppm max. +20ppm max. (32.768kHz) & +30ppm max. (others) Frequency Stability over Temp. -0.034 +0.006ppm max. / (25-T)2(See Note) Equivalent Series Resistance (ESR) 30k ohms max. 35k ohms max. 35k ohms ~ 50k ohms (others) Shunt Capacitance C0 1.6pf typical. 0.8 to 1.7pf typical Load Capacitance CL(See Note) 12.5pF typical (See Options) Motion Capacitance C1 0.0035pf typical. 0.001 ~ 0.004pf typical Drive Level 1µW max. Quality Factor Q 90,000 typical 70,000 typical Capacitance Ratio C0/C1 450 typical 425 - 800 typical Insulation Resistance 500M ohms min. at 100Vdc +15V Aging @25°C First Year +3ppm max. +5ppm max. Note: Example ; Stability at -20°C is: -0.035 x (25-[-20])2 = -71ppm. Environmental and Mechanical Standard Markings Recommended Handling Application Notes
Frequency vs Temperature Curve
Ordering Options *Please call Beckwith Electronics for availability. Note: Left blank if standard - All specifications and markings subject to change without notice.
Dimensions: Inches (mm)