Crystal unit THIN SMD HIGH-FREQUENCY CRYSTAL UNIT FA-238 Products number Q2 2 FA 2 3 8 x x x x x 0 0 * * * * High-density mounting-type SMD. Excellent reliability and environment capability. Capable of covering a wide frequency range. (from 20 MHz to 50 MHz) 0.7 mm Max. thickness is equal to SMD-type IC. Actual size Specifications (characteristics) Item Drive level Specifications Remarks f 16.000 MHz to 50.000 MHz Fundamental mode Storage temperature TSTG -55 C to +125 C Stored as bare product after unpacking Operating temperature TOPR -20 C to +70 C Maximum drive level GL 2 mW Max. Recommended drive level DL 100 W Typ. f/f 50 x 10-6 Nominal frequency range Temperature range Symbol Frequency tolerance (standard) Frequency temperature characteristics (standard) Only crystal oscillation is guaranteed Ta=+25 C3 C Please ask tighter tolerance 30 x 10-6(STD) -20 C to +70 C Available from 12 x 10 (Custom) -10 C to +60 C Available from 15 x 10 (Custom) -20 C to +70 C 10 pF to (standard:12 pF) Please specify -6 -6 Load capacitance CL 100 Max. (16 MHz f < 30 MHz) R1 Series resistance -20 C to +70 C,DL=100 W 60 Max. (30 MHz f 50 MHz) Shunt capacitance C0 5.0 pF Max. Insulation resistance IR 500 M Min. Aging fa 5 x 10-6/year Max. S. R. 10 x 10-6 Max. Ta=+25 C 3 C, first year Three drops on a hard board from 750 mm or excitation Shock resistance test with 29400 m/s 2 x 0.3 ms x 1/2 sine wave x 3 directions External dimensions Recommended soldering pattern 2.5 2000M E66RA 2.2 #2 3.2 0.7 Max. 1.2 #1 (Unit: mm) #3 #4 1.6 1.2 Internal connection #3 0.7 #4 #2 0.8 #1 #2 and #4 is connected with a cover. 25 0.9 1.4 (Unit: mm) Part Numbering System Standard Crystals (AT Strip Crystal) FA-365 Crystal Package Type: 25.0000M Frequency Tolerance@25C FA-238: Ceramic SMD, 0.9mm Height B: +/-50ppm FA-365: Ceramic SMD, 1.4mm Height C: +/-100ppm C Load Capacitance: B: C: F: G: K: W: 16.0pf 18.0pf Series 20.0pf 10.0pf 12.0pf 0 Packaging Tape and Reel 0: 1000pcs per reel Frequency Range: M: In MHz to 4 Decimal Places FA-365: 14.000~41.000MHz FA-238: 20.000~50.000MHz NOTE: If requiring a load capacitance other than the above listed, please contact your EEA representative for assistance. 1