TFPMN Series Tuning Fork Crystal FEATURES • • • • • • • • • 32.7680 kHz Frequency Reference Package Size 7.0mm x 1.5mm Tuning Fork Crystal Design Plastic Molded Package, Narrow Body Frequency Tolerance, ±20 ppm Standard Frequency Temperature Coefficient, -0.034ppm/°C2 Operating Temperature, -40°C to +85°C Standard Tape & Reel Packaging, EIA-481 RoHS Compliant in Accordance with EU Directive 2011/65/EU - Lead-Free Termination Finish - Exemption 7(a), Lead [Pb] in high melting temperature type solders APPLICATIONS The TFPMN crystal series is ideal for use in a wide range of applications requiring a real-time frequency reference. Compatible to Citizen CM310 and Epson MC-146. ORDERING INFORMATION TF PMN 3 2 K 7 6 8 0 PACKAGE SIZE PMN = 7.0mm x 1.5mm [Plastic Molded Narrow] PACKAGING OPTIONS T - 1k pcs./reel R - 3k pcs./reel FREQUENCY IN kHz FREQUENCY TOLERANCE @ 25°C 1 = ± 10 ppm 1 2 = ± 20 ppm [standard] K - indicates kHz and decimal point. 2 LOAD CAPACITANCE P = 12.5 pF [standard] V = 7 pF [optional] 1] Contact factory for availability. 2] Frequency is recorded with two leading digits before the ‘K’ and 4 significant digits after the ‘K’ (including zeros). Not all performance combinations and frequencies may be available. Contact your local CTS Representative or CTS Customer Service for availability. PACKAGING INFORMATION [reference] Device quantity is 1k pcs. minimum and 3k pcs. maximum [180mm reel]. Document No. 008-0426-0 Page 1- 3 www.ctscorp.com Rev. A TFPMN Series Tuning Fork Crystal ELECTRICAL PARAMETERS ELECTRICAL CHARACTERISTICS PARAMETER Frequency Operating Mode Frequency Tolerance Frequency Temperature Coefficient Frequency Stability Operating Temperature Range Turnover Temperature Load Capacitance * Aging Drive Level Shunt Capacitance Motional Capacitance Series Resistance Insulation Resistance Storage Temperature Range SYMBOL f0 Δf/f0 Δf/fM TA TM CL Δf/f0 DL C0 C1 R1 Ri TSTR CONDITIONS @+25°C ±5°C Standard @+25°C, 1st year +100Vdc ±15Vdc MIN TYP MAX 32.7680 Flexural Mode [Tuning Fork] 20 -0.034±0.006ppm/°C2 See Figure 1 -40 +85 +25 12.5 3.0 0.5 1.0 1.35 2.1 70 500 -40 +85 UNIT kHz ± ppm °C °C pF ± ppm µW pF fF k Ohms M Ohms °C FIGURE 1 PARABOLIC TEMPERATURE CURVE 0 -10 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 -20 Frequency stability [ppm] is determined using parabolic curve, Δf = Temperature Coefficent(TA-TM)2. -30 -40 Ex. Find frequency stability at TA = 45°C Δf = -0.034(45-25)2 Δf = -0.034(20)2 Δf = -13.6 ppm Δf/f [ppm] -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 Temperature [°C] Document No. 008-0426-0 Page 2 - 3 Rev. A TFPMN Series Tuning Fork Crystal MECHANICAL SPECIFICATIONS PACKAGE DRAWING 32.768 NOTES 1. Complete CTS part number, frequency value, date code and manufacturing site code information must appear on reel and carton labels. 2. Leads (e3); tin [Sn]. 3. Reflow conditions per JEDEC J-STD-020; 260°C maximum, 10 seconds. 4. MSL = 1. MARKING INFORMATION 1. 32.768 – Frequency, 32.7680kHz. SUGGESTED SOLDER PAD GEOMETRY Document No. 008-0426-0 Page 3 - 3 Rev. A