QTP832.76812B20R

**QTP8 Series** 3.8x8.7 Plastic SMD Tuning Fork 

## **Features** 

- Excellent environmental and heat resistance plastic package with reflow capability 

- Extended temperature -40 to +85°C for industrial applications 

## **Applications** 

- Wide range in communication and measuring equipment 

- Commercial and Industrial applications 

- Wireless communications 

- Time of day Applications 

## General Specifications 

## Mechanical Dimensions 

|General Specificationspecificationsecifications|||Mechanical Dimensions||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|Nominal Frequency|32.768 kHz||8~~.~~7 Max||||||||
|Frenquency Tolerance at 25°C<br>Temperature Coefficient<br>Temperature Range (Operating)<br>Storage Temperature<br>Load Capacitance CL|±20ppm<br>-0.035 ±0.008ppm/DºC²<br>-40 to +85ºC<br>-55 to +125°C<br>6pF, 12.5pF||5540.1<br>on<br>0.5+0.1—>]|n|n|n|n|n|3.7<br>a<br>n<br>>||3.7<br>a<br>n<br>|
|Shunt Capacitance C0|1.5pF typ.||42<br>1.3<br>—||||||||
|Motional Capacitance C1<br>Equivalent Series Resistance (ESR)<br>Drive Level|3.0fF typ.<br>50KΩmax.<br>1μW max.||a<br>ete<br>‘T<br>#&||||||||
|Aging per Year<br>Insulation Resistance (MΩ)<br>Quality Factor|±3ppm max.<br>500 at 100Vdc ±15Vdc<br>70000 typ.||4<br>~~3~~<br>~~i~~||||||||
|Capacitance Ratio|450 typ.||_PinConnection:_ **#1**Crystal,**#2**N/C,|N/C,**#3**N/C,|N/C,||N/C,**#4**Crystal||Crystal||



## Part Numbering Guide 

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Qantek Code Package Nominal Frequency (in kHz) Load Capacitance Operating Temperature Range Frequency Tolerance Packaging<br>Q = Qantek  TP8 = 3.8x8.7 Plastic 32.768 06 = 6pF  B = -40 to +85°C 10 = ±10ppm R = 3000pcs Tape&Reel<br>= SMD 12 = 12.5pF 15 = ±15ppm<br>20 = ±20ppm<br>Example: QTP832.76812B20R  bold l e tters = recommended standard specification<br>Tape and Reel Dimensions<br>1.5 + 0.1DIA<br>4.0 ± 0.1<br>.059 + .004DIA .157 ± .004 17.5+2/-0<br>2.0 ± 0.1<br>.079 ± .004<br>fe) 613.0£0.5 ari ba<br>fe} fe} Oo Oo [|tl! th25 483<br>2.7 ± 0.1<br>4.05 ± 0.1 8.0 ± 0.1 .106 ± .004<br>.159 ± .004 a .315 ± .004 —il bX i ml<br>1. 40<br>0 0<br>30. 210.  157±. 960±. .<br>± ±<br>38. 237. 1057±.. 400925±. . 3006±.. 21003±.<br>1 6.<br>**----- End of picture text -----**<br>


**QANTEK Technology Corporation** Phone: +1 877-227-0440 (tollfree) Fax: +1 877-227-0440 (tollfree) 

www.qantek.com info@qantek.com 

**QTP8 Series** 3.8x8.7 Plastic SMD Tuning Fork 

## Marking Code Guide 

Contains manufacturer code / lot code 

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Solder Reflow Profile<br>**----- End of picture text -----**<br>


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Frequency vs. Temperature Characteristics<br>To calculate the frequency stability the parabolic curvature constant (K) is needed.<br>For calculating the stability at 45°C?<br>1- Change in temperature (  D T) is (45-25) = +20°C<br>2- Change in frequency is (-0.034 x (  D °C)²) = (-0.035 x (20)² = -14.0ppm<br>**----- End of picture text -----**<br>


**QANTEK Technology Corporation** 

Phone: +1 877-227-0440 (tollfree) www.qantek.com Fax: +1 877-227-0440 (tollfree) info@qantek.com