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| Leaded Crystal Miniature Resistance Weld Crystal The UM1 series is a AT-cut crystal housed in a miniature resistance weld package that provides for an excellent hermetic seal and frequency aging. This high quality crystal offers a smaller footprint in a wide frequency range. UM1 Specifications: Frequency Range: 6.0 MHz ~ 45 MHz 25 MHz ~ 200 MHz Operating Temperature: 0C ~ +50C -10C ~ +60C -20C ~ +70C -40C ~ +85C Storage Temperature: Frequency Tolerance: (at 25C) -55C ~ +125C 50 ppm 30 ppm 20 ppm 10 ppm Frequency Stability: (over temperature range) 50 ppm 30 ppm 20 ppm 10 ppm Circuit Condition: Equivalent Series Resistance: -50 -30 -20 -10 -50 -30 -20 -10 Fundamental Overtone -A -B -C -L UM-1 10 pF ~ 32 pF or series Maximum resistance corresponds to frequency. Please see ESR table. All dimensions are in mm Drive Level: Shunt Capacitance: Aging: Optional Features: 100 W max 7 pF max 3 ppm max per year Fundamental 3 ,5 ,7 O.T. Tape & Reel rd th th Ordering Information Product name + CL + Operating Temperature Range + Tolerance + Stability + Other Code + Frequency. i.e. UM1-20-C-30-30-F-24.000MHz -F -3,5,7 -TR Note: 1. 2. 3. Other frequencies, tolerances, stabilities, and operating temperature ranges available. Consult VTC Support for specific requirements. Not all combinations of the above tolerances, stabilities, and temperature ranges are available. Consult VTC Support if your requirement is not standard. All specifications subject to change without notice. Phone: +86 10 6301 4184 (c) 2004 by Vanlong Technology Co., Ltd. Fax: +86 10 6301 9167 Email: sales@vanlong.com Web: http://www.vanlong.com UM1 |
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