CX-3-SM

9.6MHz to 160MHz

LOW-PROFILE

MINIATURE AT-CUT

SMD CRYSTAL

CX-3-SM

9.6MHz to 160MHz

LOW-PROFILE

MINIATURE AT-CUT

SMD CRYSTAL

General Description

CX-3-SM AT-cut crystals are leadless devices designed for surface-

mounting on printed circuit boards or hybrid circuits. The crystals

are low profile with a very small land area.

Outline















Designed for surface-mount applications using

infrared, vapour phase, wave solder or epoxy

mount techniques

Ideal for use with microprocessors

Designed for low power applications

Compatible with hybrid or PCB mounting

Low ageing

Full military environmental testing available

Custom designs available

Specification

Dimension

A

6.73

7.11

B

2.62

2.90

C

-

see below

D

1.27

1.52

E

1.32

1.57

CX-3-SM Package Dimensions

Typical

(mm)

Maximum

(mm)

Dimension

“C”

SM1

1.47

1.75

SM2

1.52

1.80

SM3

1.60

1.88

Glass Lid

(mm max.)

Ceramic Lid

(mm max.)



LR

C

C







12



Mot ional Resistance

Motional Capacitance

Motional Inductance

Shunt Capacitance

Equivalent Circuit

Frequency Range:

Calibration Tolerance*:

Load Capacitance:

Motional Resistance (R ):

Motional Capacitance (C ):

Quality Factor (Q):

Shunt Capacitance (C ):

Drive Level:

Frequency Stability Temp**:

Ageing, first year:

Shock, survival***:

Vibration, survival:

Operating Temperature:

Storage Temperature:

Max. Process Temperature:

9.6MHz to 160MHz

A:

±0.01% (±100ppm)

B:

±0.1%

C:

±1.0%

20pF (unless other specified)

see table below

see table below

see table below

see table below

500 W max.

-10° to +70°C from ±10ppm

-40° to +85°C from ±20ppm

-55° to +125°C from ±30ppm

±5ppm max.

3,000g peak, 0.3ms, ½ sine

20g rms 10-2,000Hz random

-10°~+70°C (commercial)

-40°~+85°C (industrial)

-55°~+125°C (military)

-55°C~+125°C

260°C for 20 seconds

Note: temperature stability characteristics follow thos of AT-cut

thickness-shear mode.

Specifications are typical at 25°C unless otherwise indicated.

*

Closer frequency calibration available

**

Other turning point available

***

Higher shock version available







m

A

B

C

D

D

D

E

(TOP)

Frequency

10.0MHz

60

2.8

95

1.4

32MHz

20

7.8

36

2.4

155MHz

50

0.5

41

3.2

CX-3-SM Motional Parameters, Q and C



Motional

Resistance

R( )



9

Motional

Capacitance

C (fF)



Quality

Factor

‘000s

Shunt

Capacitance

C (pF)



+44(0)1460 230000

+44(0)1460 230001

sales@euroquartz.co.uk

www.euroquartz.co.uk

Telephone:

Fax:

Email:

Web:

CX MINIATURE CRYSTALS

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