Datasheet

ManualsBrandsQANTEK ManualsMicrocontrollers, Microprocessors & Quartzes(L x W x H) 7 x 1.5 x 1.35 mm

QANTEK Technology Corporation

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

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

QTP7 Series

1.4x6.9 Plastic SMD Tuning Fork

Features

• Most appropriate for high-density circuit

board by the small surface mount type

• Embeded with heat resistant cylinder type

crystal bring highly stable characteristics

Mechanical Dimensions

1.35±0.05

6.90±0.10

6.70

1.40±0.100.55

0.40±0.10

0.30±0.10

0.6

1.2

5.1

0.3

Pin Connection: #1 Crystal, #2 N/C, #3 N/C, #4 Crystal

• Suitable for small mobile telecommunication

devices

Tape and Reel Dimensions

General Speciﬁ cations

Nominal Frequency 32.768 kHz

Frenquency Tolerance at 25°C ±20ppm

Aging per Year ±3ppm max.

Turnover Temperature 25ºC ±5ºC

Temperature Coefﬁ cient -0.035 ±0.008ppm/ ºC²

Temperature Range (Operating) -40 to +85ºC

Storage Temperature -55 to +125°C

Equivalent Series Resistance (ESR) 65K max.

Load Capacitance C

Standard 12.5pF

Optional 7.0pF

Shunt Capacitance C

0.8pF typ.

Motional Capacitance C

3.0fF typ.

Drive Level 1µW max.

Insulation Resistance (M) 500 at 100Vdc ±15Vdc

Quality Factor 70000 typ.

Capacitance Ratio 450 typ.

Resistance to Shock ±5ppm maximum offset from 75 cm drop test

in all axes on to a hard surface.

QTP7 Rev. 0.2

Part Numbering Guide

Qantek Code Package Nominal Frequency (in kHz) Load Capacitance Operating Temperature Range Frequency Tolerance Packaging

Q = Qantek TP7 = 1.4x6.9 Plastic

= SMD

32.768 07 = 7pF

12 = 12.5pF

B = -40 to +85°C 20 = ±20ppm R = 3000pcs Tape&Reel

Example: QTP732.76812B20R bold letters = recommended standard speciﬁ cation

Summary of content (2 pages)

PAGE 1
QTP7 Series 1.4x6.9 Plastic SMD Tuning Fork Features • Most appropriate for high-density circuit board by the small surface mount type • Embeded with heat resistant cylinder type crystal bring highly stable characteristics • Suitable for small mobile telecommunication devices General Specifications Mechanical Dimensions Nominal Frequency 32.768 kHz Frenquency Tolerance at 25°C ±20ppm Aging per Year ±3ppm max. Turnover Temperature 25ºC ±5ºC Temperature Coefficient -0.035 ±0.
PAGE 2
QTP7 Series 1.4x6.9 Plastic SMD Tuning Fork Marking Code Guide Contains manufacturer code / lot code Frequency vs. Temperature Characteristics To calculate the frequency stability the parabolic curvature constant (K) is needed. For calculating the stability at 45°C? 1- Change in temperature (T) is (45-25) = +20°C 2- Change in frequency is (-0.034 x (°C)²) = (-0.035 x (20)² = -13.6ppm QANTEK Technology Corporation Phone: +1 877-227-0440 (tollfree) Fax: +1 877-227-0440 (tollfree) www.qantek.