DIMENSIONS (mm)

For quotations or further information please contact us at:

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

http://www.actcrystals.com

In line with our ongoing policy of product evolvement and improvement, the above specification may be subject to change without notice

ISO9001:2000 Registered - Registration number 6830/2

Condition

Parameter

Symbol

Nominal Frequency

Tel :

0044 (0)118 979 1238

Fax :

0044 (0)118 979 1283

email :

info@actcrystals.com

Tel :

0044 (0)118 979 1238

Specification

Please specify

-10 ~ +60°C

ACT90 & 91CSMX

fo

32.768KHz

Frequency v Temp Characteristics

±20ppm, ±50ppm & 100±ppm

See drawing

Turnover Temperature

Tm

25°C ±5°C

Freq. Temp. coefficient

b

(-3.5± 0.8) x 10

Temp Storage Range

Tstg

Temp Operating Range

Torp

-40 ~ +85°C

-55 ~ +125°C

Equivalent Series Resistance

ESR

Q' Value

Q

40 x 10

Please specify

Shunt Capacitance

Co

1.0pF Typical

Motional Capacitance

Load Capacitance

6 ~ 12.5pF

2.1fF Typical

Capacitance Ratio

g

450 Typical

Drive Level

DL

Insulation Resistance

IR

@ 100V DC

Aging (first year)

Fa

±5ppm max

@ 25°C ±3°C

Shock Resistance

The ACT90 & 91are miniature surface mount Watch Crystal whose low power

consumption makes them ideal for portable applications. Their size makes them

suitable for high density circuit boards or applications where space is limited and the

tape and reel packaging means that they are ideal for automatic placement machines.

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

stability characteristics sufficient to allow reflow soldering.

Reflow Soldering Condition

Tsol

230°C max, 20 Sec. Max x 2 times

Issue: 7 I3

Date: 16/06/05

Lead Free-RoHS

Comp.

Lead frame material:

Ni/Fe

Pad surface finish:

Sn/Bi