Parameter

Symbol

Specification

Frequency Tolerance

Δf/fo

±10ppm ~±30ppm @25°C

Refer to table 3

Please specify

Stability over temp range

Tc

±10ppm ~±30ppm

Refer to table 3

Please specify

Temp Operating Range

Topr

-20 ~+70°C STD( -40 ~+85°C Option)

Please specify

Temp Storage Range

Tstg

-40~+85°C

Equivalent Series Resistance

ESR

See Table 2

Load Capacitance

CL

8~16pF

Please specify

Shunt Capacitance

C0

5pF max

Drive Level

DL

10

μW (300μW max)

Insulation Resistance

IR

500M

Ω min

@100V DC

Aging

Fa

±2ppm / year max

@25°C

Shock

Drop test 3 times onto 2mm stainless steel from 75cm

Reflow

Table 1

Available Fundamental Frequencies

12.000MHz

13.000MHz

14.31818MHz

16.000MHz

20.000MHz

24.576MHz

25.000MHz

26.000MHz

27.000MHz

30.000MHz

32.000MHz

35.328MHz

40.000MHz

48.000MHz

Table 2

ESR (Max)

12MHz to 19.999MHz

80

Ω

20MHz to 25.99MHz

70

Ω

26MHz to 48MHz

50

Ω

Table 3

Issue 8 H2

Date 05/09/2006

Condition

Enquire

Enquire

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

ISO9001:2000 Registered

For quotations or further information please contact us at:

http://www.actcrystals.com

Tel :

0044 (0)118 979 1238

Fax :

0044 (0)118 979 1283

email :

info@actcrystals.com

±10ppm

260°C for 10 seconds max

±20ppm

±30ppm

Stability

Tolerance

-20 ~ +70°C

-40 ~ +85°C

25°C

Specification

Frequency

fo

Fundamental

12 ~ 48MHz

For frequencies not shown in table 1

please enquire for availability.

±15ppm

Please note that all parameters can not necessarily be specified in the same device

Customer to specify : Frequency, Frequency Tolerance, Temperature Stability, Operating Temperature & Load Capacitance

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

The ACT421LCSMX-4 is a 4 pad, high quality, low aging SMD Crystal in a ceramic base /

metal lid package, seam welded for good long term reliability. The lid is grounded through

the package to assist with EMI issues and the pads are gold plated. Its wide frequency

range and frequency tolerance / stability options with its small size make the device ideal for

many applications including Bluetooth, Notebook, PCMCIA, Instrumentation,

Microprocessor Systems and Wireless / Communications equipment.

Available loose or on 2K reels to suit high/low volume requirements.

ACT421LCSMX-4 (Preferred type)

Pad termination 0.3 -1.0um over 1.3-8.8um Ni

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