Tel

(44) 0118 979 1238

Fax

(44) 0118 979 1283

email

info@actcrystals.com

Please note that not all parameters can necessarily be specified in a single device

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For quotations or further information please contact us at:

3 The Business Centre, Molly Millars Lane, Wokingham, Berks, RG41 2EY, UK

www.advancedcrystaltechnology.com

Issue 2 M4 22/9/03

ACT200

The ACT200 is a miniature surface mount Watch Crystal whose low power consumption makes it

ideal for portable applications. It’s size makes it suitable for high density circuit boards or applica-

tions where space is limited and the tape and reel packaging means that it is ideal for

automatic placement machines.

The heart of the device is a heat resistant cylinder type crystal which gives it high

stability characteristics sufficient to allow reflow soldering

Parameter

Symbol

Specification

Condition

Nominal Frequency

fo

32.768KHz

Frequency Tolerance

∆f/fo

±5ppm, ±10ppm, ±20ppm, 30ppm

@25°C

Frequency v Temp Characteristics

∆f/fo

See drawing

-10 ~ +60°C

Turnover Temperature

Tm

25°C ± 5 °C

Freq. Temp. coefficient

β

Temp Operating Range

Topr

-40 ~ +85 °C

Temp Storage Range

Tstg

-55 ~ +125 °C

Equivalent Series Resistance

ESR

50K

Ω max

At 25 °C

Shunt Capacitance

C0

1.35pF Typical

Load Capacitance

6 & 12.5pF

Others, please specify

Motional Capacitance

0.003pF Typical

Capacitance Ratio

γ

450 Typical

Drive Level

DL

1

µ W max

Insulation Resistance

IR

500M

Ω Min

@ DC 100V ±15V

Aging (first year)

∆f/fo

±3ppm max

25°C ±3°C

8.0 max

3.8 max

5.5

0.5

2.5 max

0.9

1.3

4.2

1.3

1.9

1.3

1.9

Dimensions in mm

#1

#4

#3

#2

Top View

Suggested Footprint

-20 -10

0 +10 +20 +30 +40 +50 +60

0

-10

-20

-30

-40

-50

-60

∆ f/fo (ppm)

Typical Temperature Characteristics