Thru-Hole Crystal C4ST (former HC49SLF) DATASHEET • Tolerances down to ±10 PPM • Stabilities down to ±5 PPM • Operating Temperature Range to -55ºC ~ +125ºC • C4ST STANDARD SPECIFICATIONS PARAMETERS MAX (unless otherwise noted) Frequency Range 3.200 ~ 80.000 MHz Frequency Tolerance @ 25ºC (See options on page 2) Frequency Stability, ref @ 25ºC (See options below) Temperature Range Operating (TOPR) (See options below) Storage (TSTG) -40ºC ~ +125ºC Shunt Capacitance (Co) 7pF Load Capacitance (CL) (See options on page 2) Drive Level 0.5 mW (0.1 mW Typical) Aging per year ±3 PPM Maximum Soldering Temp / Time 260ºC / 10 Seconds Moisture Sensitivity Level (MSL) 1 Termination Finish Sn/Ag3.0/Cu0.5 Seam Method Resistance Weld Lead (Pb) Free Yes RoHS/REACH Compliant Yes Frequency Range Operating (MHz) Mode Max ESR Ω 3.200 ~ 3.500 Fundamental 300 3.500001 ~ 4.000 Fundamental 200 4.000001 ~ 5.000 Fundamental 150 All dimensions are in millimeters. 5.000001 ~ 6.000 Fundamental 120 6.000001 ~ 7.000 Fundamental 100 7.000001 ~ 9.000 Fundamental 80 Note: Dimensional drawing is for reference to critical specifications defined by 9.000001 ~ 13.000 Fundamental 60 size measurements. Certain non-critical visual attributes, such as side 13.000001 ~ 20.000 Fundamental 40 castellations, etc. may vary. All specifications subject to change without notice. 20.000001 ~ 40.000 Fundamental 30 24.000 ~ 70.000 3rd OT 100 70.000001 ~ 80.000 3rd OT 70 •Available Operating Temperatures and Stabilities* Operating Temperature ±5 PPM ±10 PPM ±15 PPM ±20 PPM ±25 PPM ±30 PPM ±50 PPM ±100 PPM -10°C to +60°C O O O O O O O O -20°C to +70°C ∆ O O O O O O O -40°C to +85°C X X O O O O O O -40°C to +105°C X X X X X ∆ O O -40°C to +125°C X X X X X X ∆ O -55°C to +125°C X X X X X X ∆ O Key: O=Available, X=Not Available, ∆=Consult Fox Technical Support *Does not imply a stocked part. Title / Description:C4STSTANDARD SPECIFICATIONS Drawing Number: C4ST-DOC-2 Size: A Part Number: Cage: 61429 © Copyright 2019 Fox Electronics, All rights reserved Draftsperson: BEC Approved: MAJ Revision Date: 06/10/2019

Thru-Hole Crystal C4ST (former HC49SLF) DATASHEET Available Options & Part Identification for Thru-Hole Crystal C4ST1 F C4ST C B M F 16.0 F C4ST C B M F 16.0 FOX Model Tolerance Stability Load Operating Frequency Number B = ±50ppm A = ±100ppm Capacitance2 Temperature (MHz) C = ±30ppm B = ±50ppm A = Series D =-10 to +60ºC D = ±25ppm C = ±30ppm E = 10pF F =-20 to +70ºC E = ±20ppm D = ±25ppm G = 12pF M =-40 to +85ºC E = ±20ppm F = ±15ppm K = 16pF P =-40 to +105ºC F = ±15ppm H = ±10ppm H = ±10ppm L = 18pF I =-40 to +125ºC L = ±5ppm M = 20pF T =-55 to +125ºC 1 Not all frequency, tolerance, stability, load, and operating temperature combinations may be available. 2 Listed load capacitances represent the most commonly used. Other load capacitances are available. Contact Fox Technical Support for assistance Corporate Sales Tech Support Headquarters 1-888-GET-2-FOX (1-888-438-2369) or http://www.FOXONLINE.com/email 5570 Enterprise Parkway 1-239-693-0099 Fort Myers, FL 33905 http://www.FOXONLINE.com/repdisty http://www.FOXONLINE.com PRODUCT USE: Fox Electronics reserves the right to modify the products and/or specifications described herein at any time and at Fox Electronics' sole discretion. All information in this document, including descriptions of product features and performance, is subject to change without notice. Performance specifications and the operating parameters of the described products are determined in the independent state and are not guaranteed to perform the same way when installed in customer products. The information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not limited to, the suitability of Fox Electronics' products for any particular purpose, an implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a guide and does not convey any license under intellectual property rights of Fox Electronics or any third parties. Fox Electronics' products are not intended for use in applications involving extreme environmental conditions or in life support systems or similar devices where the failure or malfunction of a Fox Electronics product can be reasonably expected to significantly affect the health or safety of users. Anyone using a Fox Electronics product in such a manner does so at their own risk, absent an express, written agreement by Fox Electronics. Fox Electronics and the Fox logo are registered trademarks of Fox Electronics. Product specification is subject to change without notice. Other trademarks and service marks used herein, including protected names, logos and designs, are the property of Fox Electronics or their respective third party owners. For datasheet type definitions and a glossary of common terms, visit http://www.foxonline.com/tgcrystals.html . Title / Description:C4STSTANDARD SPECIFICATIONS Drawing Number: C4ST-DOC-2 Size: A Part Number: Cage: 61429 © Copyright 2019 Fox Electronics, All rights reserved Draftsperson: BEC Approved: MAJ Revision Date: 06/10/2019

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