QTP732.76812B20R

**QTP7 Series** 1.4x6.9 Plastic SMD Tuning Fork 

## **Features** 

- Most appropriate for high-density circuit board by the small surface mount type 

   - Suitable for small mobile telecommunication devices 

- Embeded with heat resistant cylinder type crystal bring highly stable characteristics 

## General Specifications 

## Mechanical Dimensions 

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|---|---|---|---|---|---|---|---|---|
|Nominal Frequency|32.768 kHz|
|Frequency Tolerance at 25°C|±20ppm|0.55|1.40±0.10|
|Daa|
|Aging per Year|±3ppm max.|
|6.70|
|Turnover Temperature|25ºC ±5ºC|—|
|6.90±0.10|
|Temperature Coefficient|-0.035 ±0.008ppm/|D|ºC²|
|Temperature Range (Operating)|-40 to +85ºC|ft|1.35±0.05|
|Storage Temperature|-55 to +125°C|_t|
|0.30±0.10|
|Equivalent Series Resistance (ESR)|65K|Ω|max.|
|Load Capacitance CL|Standard|12.5pF|a|_i|
|0.40±0.10|
|Optional|7.0pF|
|#4|#3|
|Shunt Capacitance C0|0.8pF typ.|
|Motional Capacitance C1|3.0fF typ.|<|#1|=|¢|#2|
|Drive Level|1μW max.|1.2|
|Insulation Resistance (M|Ω|)|500 at 100Vdc ±15Vdc|0.6|
|0.3|
|Quality Factor|70000 typ.|mT|me||
|Capacitance Ratio|450 typ.|5.1|
|Resistance to Shock|±5ppm maximum offset from 75 cm drop test|
|Pin Connection:|#1|Crystal,|#2|N/C,|#3|N/C,|#4|Crystal|
|in all axes on to a hard surface.|

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## Part Numbering Guide 

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|---|---|---|---|---|---|---|
|Qantek Code|Package|Nominal Frequency (in kHz)|Load Capacitance|Operating Temperature Range|Frequency Tolerance|Packaging|
|Q = Qantek|TP7 = 1.4x6.9 Plastic|32.768|07 = 7pF|B = -40 to +85°C|20 = ±20ppm|R = 3000pcs Tape&Reel|
|= SMD|12 = 12.5pF|
|Example: QTP732.76812B20R|bold letters = recommended standard specification|

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## Tape and Reel Dimensions 

**QANTEK Technology Corporation** 

Phone: +1 877-227-0440 (tollfree) Fax: +1 877-227-0440 (tollfree) 

www.qantek.com info@qantek.com 

**QTP7 Series** 1.4x6.9 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) = (-0.034 x (20)²) = -13.6ppm<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