TFPM Series Tuning Fork Crystal Features 32.7680kHz Frequency Reference Tuning Fork Crystal Design Plastic Molded Surface Mount Package Compatible to Citizen CM200C/S and Epson MC-306 Part Dimensions: 8.0 3.8 2.5mm 145.1782mg Frequency Tolerance, 20ppm Standard Parabolic Temperature Coefficient RoHS Compliant in Accordance with EU Directive 2011/65/EU Tape and Reel Packaging, EIA-418 - Lead-Free Termination Finish - Exemption 7(a), Lead Pb in high melting temperature type solders Applications Real Time Clock Reference Computer Peripherals FPGAs & Microcontrollers IoT Applications Wireless Communications Instrumentation Consumer Electronics Industrial Electronics Description CTS TFPM Series is ideal for supporting wide range of electronic designs requiring a Real Time Clock reference. This series will support general commercial and industrial applications. Ordering Information Frequency Load Frequency Code Model Packaging Tolerance Capacitance kHz TF PM 2 P 32K7680 R Package Capacitance Packing Code Code Code 8.0x3.8mm 12.5pF 3k pcs./reel PM P R Plastic Molded 6pF T Code +25C Code Frequency 2 20ppm 2 Product Frequency Code 1 1 10ppm Notes: Check factory for availability. 1 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. This product is specified for use only in standard commercial applications. Supplier disclaims all express and implied warranties and liability in connection with any use of this product in any non-commercial applications or in any application that may expose the product to conditions that are outside of the tolerances provided in its specification. DOC 008-0405-0 Rev. F Page 1 of 4 2017 CTS Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote. TFPM Series Tuning Fork Crystal Electrical Specifications Operating Conditions PARAMETER SYMBO L CO NDITIO NS MIN TYP MAX UNIT Operating Temperature T - -40 +25 +85 C A Turnover Temperature T - +20 +25 +30 C M Storage Temperature T - -55 - +125 C STG Frequency Stability PARAMETER SYMBO L CO NDITIO NS MIN TYP MAX UNIT Frequency f - 32.7680 kHz O Frequency Tolerance f/f Standard +25C -20 - 20 ppm O Note 1 2 -0.034 0.006 Parabolic Coefficient See Figure 1 ppm/C Aging f/f First Year +25C -3 - 3 ppm 0 Crystal Parameters PARAMETER SYMBO L CO NDITIO NS MIN TYP MAX UNIT Flexural Mode Tuning Fork Operating Mode - - - Load Capacitance C Standard - 12.5 - pF L Note 1 Shunt Capacitance C - - 1.35 - pF 0 Motional Capacitance C - - 1.8 - fF 1 Series Resistance R - - - 50 k 1 Drive Level DL - - 0.5 1.0 W Insulation Resistance R +100Vdc 15Vdc 500 - - M i 1. See Ordering Information for available options. Figure 1 Frequency Stability f at a given temperature, 2 f = T -T A M = Parabolic Coefficient Ex. Find frequency stability at T = +45C A 2 T = Ambient Temperature A f = -0.034 45-25 2 T = Turnover Temperature M f = -0.034 20 f = -13.6ppm DOC 008-0405-0 Rev. F Page 2 of 4 2017 CTS Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.