Tuning Fork Crystal Resonators / kHz Band Crystal Resonators D-38, D-381/D-26, D-261 Low power consuming tuning fork crystal resonators are suitable not only for wristwatches but also for a wide range of other applications from industrial equipment to the clock functions in consumer and household electronics. ■ ● Features A cylindrical type tuning fork crystal resonator ■ Standard Speciｆｉｃａｔｉｏｎ Item Type D-38 F re q u e n c y R a n g e D-381 3 2 .7 6 8 k H z D-26 1 4 .7 5 ～1 5 3 .6 k H z L o a d C a p a c ita n c e D-261 3 2 .7 6 8 k H z 2 8 ～1 0 0 k H z S e rie s ,9 p F ,1 0 p F ,1 2 .5 p F ※1 D riv e L e v e l 1 .0 μW（2 .0 μW m a x .） Frequency Tolerance S e rie s R e s is ta n c e GRADE A±20×10 －6 GRADE B±30×10 －6 （at25℃） ※2 （at25℃） 3 0 kΩ m a x . Turnover Temperature GRADE A±20×10 －6 （at25℃） GRADE B±30×10 －6 （at25℃） ※2 ＋25℃±5℃ 4 0 kΩ m a x . ※2 －0 .0 4 ×1 0 －6 ※2 2 /℃ max. O p e ra tin g T e m p e ra tu re R a n g e －1 0 ～＋6 0 ℃ S to ra g e T e m p e ra tu re R a n g e －2 0 ～＋7 0 ℃ 1 .3 p F T y p . ※2 ＋25℃±5℃ P a ra b o lic Coefficient S h u n t C a p a c ita n c e ※2 ※2 1 .1 p F T y p . ※2 ※1: Other capacitance value is available upon your request. ※2: Upon customer request. ■ Dimensions[mm] Type A' A B C 10.0±1.0 D-38, D-381 φ3.0 φ3.0 ＋0.1 －0.2 8.0 ＋0.3 －0.2 D-26, D-261 φ2.0 φ2.0 ＋0 －0.2 6.0 ＋0.1 －0.2 ■ Dimensions[mm] D E φ0 .3 5 ±0 .0 7 （0.25±0.07） 1.1±0.2 7.5±1.0 0.7±0.2 φ0.28±0.05 ■ Load Capacitance Characteristics (Example) 280 C A 260 240 D E B △f/f in 10-6 A' 220 200 180 DT－38/381 DT－26/261 160 140 120 100 80 60 5 10 Load capacitance(C 15 L) in pF D: Measured from the root of leads SHENZHEN DIGUO TECHONLOGY CO.,LTD http://www.dgkjly.com 0755-27881119