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