CX-2V CRYSTAL 16 kHz to 600 kHz TM Miniature Quartz Crystal for Pierce Oscillators DESCRIPTION The CX-2V quartz crystal is a high quality tuning fork resonator for use in Pierce (single inverter) oscillators. The CX-2V is hermetically sealed in a rugged, miniature ceramic package, one-fourth the size of an eight-pin mini-DIP. The CX-2V crystal is manufactured using the STATEK-developed photolithographic process, and was designed utilizing the experience acquired by producing millions of crystals for industrial, commercial, military and medical applications. actual size FEATURES Miniature tuning fork design High shock resistance Designed for low power applications Compatible with hybrid or PC board packaging Low aging Full military testing available PACKAGE DIMENSIONS Ideal for battery operated applications Designed and manufactured in the USA -02 End Lead PACKAGE HANDLING .094 (2.39) 2 .260 (6.60) 1 .210 (5.33) 3 .200 (5.08) .205 (5.21) A A .050(1.27) -04 Side Lead .260 (6.60) INCHES (mm) 1.Terminal 1 is electrically connected internally to terminal 3. R1 2 3 2 3 1 2 Notes: C0 C1 1 .094 (2.39) EQUIVALENT CIRCUIT L1 .260 (6.60) .094 (2.39) The CX crystal is hermetically sealed in a ceramic package. Normal handling and soldering precautions for small, low thermal mass parts are adequate when installing or testing CX crystals. CX crystals may be wave soldered, with proper precaution taken to avoid desoldering the leads. A slow machine rate or too high a pre-heat temperature or solder bath temperature can damage the crystals. Lead to package solder interface temperature should not exceed 175oC, glass lid to package seal rim temperature should not exceed 210oC. If the seal rim reaches temperatures above the maximum specified, the package may lose its hermeticity. Loss of hermeticity results in a frequency decrease and motional resistance increase. 1 -03 Side Lead .210 (5.33) 2.Lead dimensions Width: .013” (.33mm) Typical Thickness: .007” (.18mm) Typical 3.A = Glass Lid .080 (2.03) max. Ceramic Lid .095 (2.41) max. .100 (2.54) A R1 Motional Resistance L1 Motional Inductance C1 Motional Capacitance C0 Shunt Capacitance STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com 10138 - Rev A FIGURE 1 CX-2V TYPICAL MOTIONAL RESISTANCE (R1) 100 50 CX-2V Crystal Calibration Tolerance at 25OC 5 2 16 + _ B + _ C + _ 0.003% + _ 0.01% + _ 0.1% + _ 0.005% + _ 0.01% + _ 0.1% + _ + _ 0.02% 0.02% + _ 0.05% + _ 0.2% Frequency Load Range Capacitance (kHz) (pF) Frequency Range (kHz) 16-24.9 25-54.9 55-100.0 100.1-179.9 180-600 10 9 8 1.0 0.5 16 5 4 100 200 600 FIGURE 3 CX-2V TYPICAL QUALITY FACTOR (Q) 300 200 100 50 16 50 100 200 600 Frequency (kHz) FIGURE 4 CX-2V TYPICAL TURNING POINT TEMP. (T0) O Load Capacitance (pF) 50 Frequency (kHz) 0.5% Load Capacitance (CL), Used to Calibrate CX-2V (other CL available) 600 2 250-600 0.01% 200 5 20 170-249.9 100 FIGURE 2 CX-2V TYPICAL MOTIONAL CAPACITANCE (C1) TO ( C) A 75-169.9 50 Frequency (kHz) Frequency Range (kHz) Calibration 16-74.9 20 10 (in 1000's) * Tighter frequency calibration available. ** Other turning point available. *** Higher shock and vibration available. 300 200 R1(kV) Specifications are typical at 25OC unless otherwise noted. Specifications are subject to change without notice. Frequency Range 16 kHz to 600 kHz Functional Mode Tuning Fork (Flexure) Calibration Tolerance* A, B or C (see below) See Figure 1 Motional Resistance (R1) MAX.: 16-24.9 kHz, 2x Typ. 25-600 kHz, 2.5x Typ. Motional Capacitance (C1) Figure 2 Quality Factor (Q) Figure 3 Min. is 0.25x Typ. Shunt Capacitance (C0) 2.0 pF MAX. Drive Level 16-24.9 kHz 0.5 mW MAX. 25-600 kHz 1.0 mW MAX. Turning Point (To )** Figure 4 Temperature Coefficient (k) -0.035 ppm/0C2 Aging, first year 5ppm MAX. Shock*** 1,000g peak, 1msec., 1/2 sine Vibration, survival*** 10g rms, 20-2,000 Hz random Operating Temperature -10OC to +70OC Commercial -40OC to +85OC Industrial -55OC to +125OC Military Storage Temperature -55OC to +125OC Max Process Temperature See package handling C 1(fF) SPECIFICATIONS +80 +70 +60 +50 +40 +30 +20 +10 0 -10 -20 16 20 50 100 200 600 Frequency (kHz) Note: Frequency (f) deviation from frequency (fo) @ turning point HOW TO ORDER CX-2V LEADED CRYSTALS CX-2V -03 32.768 kHz ( A / I 2 f-fO = k(T-TO) fO ) PACKAGING “S” if special or custom design. Blank if Std. *Other calibration fill in ppm. Leads 02 03 04 Frequency Calibration Tolerance* @ 250C (A) (B) (C) Temp. Range: C = Commercial I = Industrial M = Military S = Specify CX-2V-Leaded -Tray Pack (Standard) STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com 10138 - Rev A