Leaded Crystal Miniature Resistance Weld Crystal HC49U The HC49U series is an industry AT-cut crystal housed in a MIL standard HC49U package. • • • • • AT-cut performance Low cost for volume applications Tight specifications available Wide frequency range available Complies with Directive 2002/95/EC (RoHS Compliant) Specifications: Frequency Range: HC-49/U 1.8432 MHz ~ 40 MHz Fundamental 23 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: -40°C ~ +85°C Frequency Tolerance: ± 50 ppm -50 (at 25°C) ± 30 ppm -30 ± 20 ppm -20 ± 10 ppm -10 ± 50 ppm -50 Frequency Stability: (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: 1.0 mW max Shunt Capacitance: 7 pF max Aging: ± 5 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 -T i.e. HC49U-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) 5820-3910 © 2006 by Vanlong Technology Co., Ltd. Fax: +86 (10) 5820-3915 Email: [email protected] Web: http://www.vanlong.com HC49U