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            封裝規格[mm]: Φ3.0 × 8.0
            頻率[KHz]: 32.768
            常溫頻差[10^-6@+25℃]: ±10ppm, ±20ppm
            工作溫度范圍: -10℃ ~ +60℃, -20℃ ~ +70℃
            負載電容 [CL]: 6pF,
            ESR [typ / max k?]: 30KΩ
            RoHS And 無鉛:
            資料下載:  Datasheet
            商城購買:

            產品詳情

            特點

            • 低功耗
            • 高精度
            • 高穩定性
            • 低老化

            產品應用

            • 實時時鐘
            • 消費類設備
            • 便攜式電子產品
            • 時間顯示裝置

            介紹

            TF308是一款柱式直插32.768KHz石英晶體,它在-10℃~+60℃和-20℃~+70℃的標準工作溫度范圍內提供30KΩ和±10ppm的頻率公差,符合ROHS和REACH環保要求,適應于消費類電子產品。

            Electrical Specifications

            Item

            Symb.

            Electrical spec.

            Notes

            Nominal Frequency

            Freq.

            32.768KHz


            Operating Temperature

            T_use

            -10℃~+60℃/-20℃~+70℃


            Storage Temperature Range

            T_stg

            -40℃+85℃


            Oscillation Mode

            -

            Fundamental


            Frequency Tolerance

            f_tol

            ±10ppm / ±20ppm

            at 25℃±3℃

            Turnover Temperature

            Ti

            25℃±5℃


            Parabolic curvature constant

            B

            -0.042ppm/(△℃)2 max.

            Over Operating Temp. Range (Reference 25℃)

            Drive Level

            DL

            1 μW Max.


            Load Capacitance

            CL

            6pF , 7pF , 9pF, 12.5pF


            Effective Resistance

            RR

            30kΩ max.


            Aging

            f_age

            ±3 ppm Max.

            1st. Year at 25℃


            Mechanical Dimensions

            TF308.png


            Selection Guide

            ⑴. 需求描述

            選擇需要的封裝規格及產品系列φ2.0×6.0mm;TF206 Series

            選擇需要的頻率32.768KHz

            確定晶體的負載電容值(CL):12.5pF

            選擇需要的精度±20ppm

            選擇需要的工作溫度范圍:-20℃~+70℃

            您需要的產品是TF206 Series 32.768KHz 12.5pF ±20ppm -40~+85℃

            ⑵. 標準規格及型號
            Nominal FrequencyLoad Capacitance(CL)Frequency ToleranceOperating TemperatureEffective Resistance(ESR)Product Number
            32.768KHz6pF±20ppm-20℃~+70℃30kΩ max.**DB32.768KD20E
            32.768KHz7pF±20ppm-20℃~+70℃30kΩ max.**DB32.768KC20E
            32.768KHz9pF±20ppm-20℃~+70℃30kΩ max.**DB32.768KG20E
            32.768KHz12.5pF±20ppm-20℃~+70℃30kΩ max.**DB32.768KA20E


            產品分類

            資料下載

            商城購買

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            電話:0755-86097105
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