K124

K124 FOX | Alldatasheet

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1.2 x 1.0 x 0.35mm Tuning Fork – 4 pad K124 DATASHEET © Copyright 20 20 Fox Electronics . All rights reserved Title / Description: K124 STANDARD SPECIFICATIONS Drawing Number: K124-DOC-1 Size: A Part Number: Cage: 61429 Draftsperson: BEC Approved: MAJ Revision Date: 06/03/2020 STANDARD SPECIFICATIONS PARAMETERS MAX (unless otherwise noted) Frequency 32.768 kHz Frequency Tolerance @ 25ºC ±20 PPM Frequency Stability (Temperature Coefficient) -0.04 PPM / (∆ºC)2 Temperature Range Turnover (TO) Operating (TOPR) Storage (TSTG) Storage (TSTG +20ºC ~ +30ºC -40ºC ~ +85ºC; -40 to 105ºC -55ºC ~ +125ºC Equivalent Series Resistance (RS) 90 kΩ Load Capacitance (CL) (See options on page 2) Insulation Resistance @ 100VDC 500MΩ Min Drive Level 1.0µW 0.1µW Typ Aging per year @ 25°C (first year) ±3 PPM Maximum Soldering Temp / Time 260ºC / 10 Seconds Moisture Sensitivity Level (MSL) 1 Termination Finish Au over Ni Seal Method Metal Diffusion Lead (Pb) Free Yes RoHS/Reach Compliant Yes Page 1 of 3 Note: Dimensional drawing is for reference to critical specifications defined by size measurements. Certain non-critical visual attributes, such as side castellations, etc. may vary. -450 -400 -350 -300 -250 -200 -150 -100 -50 PPM Parabolic Coefficient

1.2 x 1.0 x 0.35mm Tuning Fork – 4 pad K124 DATASHEET © Copyright 20 20 Fox Electronics . All rights reserved Title / Description: K124 STANDARD SPECIFICATIONS Drawing Number: K124-DOC-1 Size: A Part Number: Cage: 61429 Draftsperson: BEC Approved: MAJ Revision Date: 06/03/2020

• TAPE SPECIFICATIONS (millimeters) A B C D E F Reel QTY Available Options & Part Identification for SMD Tuning Fork Crystal K 124 F K124 E I B M 0.032768 F K124 E I B M 0.032768 FOX Model Number Tolerance E = ±20ppm Stability I =-0.04 PPM / (ºC)2 Load Capacitance* C = 4pF B = 6pF V = 7pF W = 9pF H = 12.5pF Operating Temperature M = -40 ~ +85°C P = -40 ~ +105ºC Frequency (MHz) Corporate Headquarters

5570 Enterprise Parkway

Fort Myers, FL 33905 http://www.FOXONLINE.com Sales 1-239-693-0099 http://www.FOXONLINE.com/repdisty Tech Support http://www.FOXONLINE.com/email 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 no tice. Performance specifications and the operating parameters of the described products ar e 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 imp lied, including, bu t 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 co nvey 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 supp ort systems or similar devices where t he failure or malfunction of a Fox Electronics product can be reasonably expected to significantly affect the health or safety o f 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 wit hout 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 Page 2 of 3

• REEL SPECIFICATIONS (millimeters) G H I J K L M 2.0 Ø13 Ø21 Ø60 Ø180 9.0 1.2

1.2 x 1.0 x 0.35mm Tuning Fork – 4 pad K124 DATASHEET © Copyright 20 20 Fox Electronics . All rights reserved Title / Description: K124 STANDARD SPECIFICATIONS Drawing Number: K124-DOC-1 Size: A Part Number: Cage: 61429 Draftsperson: BEC Approved: MAJ Revision Date: 06/03/2020 Page 3 of 3 Crystal Unit Handling Precautions 1) Mounting Precautions

• If the board is deformed, such as bending after mounting, peeling of the soldered joint between the crystal resonator and board may occur producing a crack in the ceramic package, leading to loss of vacuum, destruction of the internal element, etc. Especially when depaneling the board on which it is mounted, there is a possibility that a large stress may be applied, please consider board layout and cutting method to minimize stress on products.
• When the product is automatically mounted on the board, if a large impact is applied to the crystal resonator, there is a possibility that characteristics may change / deteriorate, or the product may be broken. When mounting automatically, please set conditions considering the shock to the crystal unit. Also, please conduct the mounting test beforehand and confirm that there is no influence on the characteristics to the crystal resonator.
• Cracks may occur in the soldered part by repeated harsh temperature changes for a long time when mounting due to the board having a expansion coefficient different from that of the ceramics used in the crystal package. When using under such circumstances, please conduct test beforehand and confirm that there is no influence on the crystal unit.
• Ceramic packages are small and thin products. So, if/when you rework after mounting, please give consideration to the selection and handling of the tools to be used. 2) Soldering Following is typical SMD Pb-free reflow profile for soldering: Excessive heating time at high temperature may result in deterioration of the characteristics and may break the crystal unit. For manual rework, heat the lead part at 300℃ or lower for 5 seconds or less. 3) Cleaning Since a small, thin crystal chip is used for tuning fork crystal units and the frequency approximates that of an ultrasonic cleaner, the crystal chip may break easily. Therefore, DO NOT perform ultrasonic cleaning.