CX-3-SM

800kHz to 1.35MHz

LOW-PROFILE

MINIATURE

SMD CRYSTAL

CX-3-SM

800kHz to 1.35MHz

LOW-PROFILE

MINIATURE

SMD CRYSTAL

General Description

CX-3-SM quartz crystals are leadless devices designed for surface-

mounting on printed circuit boards or hybrid circuits. Hermetically

sealed in a rugged, ceramic package, the crystals are produced

utilizing a photo-lithographic process giving excellent repeatability

and consistent high quality.

Outline















Extensional mode

Ideal for use with microprocessors

Designed for low power applications

Compatible with hybrid or PCB mounting

Low ageing

Full military environmental testing available

Ideal for battery operated applications

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:

Functional Mode:

Calibration Tolerance*:

Load Capacitance:

Motional Resistance (R ):

Motional Capacitance (C ):

Quality Factor (Q):

Shunt Capacitance (C ):

Drive Level:

Turning Point (T )**:

Temperature Coefficient (k):

800kHz to 1.35MHz

Extensional

A:

±0.05% (±500ppm)

B:

±0.1%

C:

±1.0%

7pF

5k max.

1.2fF

150k

1.0pF

3 W max.

35°C

-0.035ppm/°C

Note: Frequency (f) deviation from frequency (f0) @ turning point

temperature (t0) =









W

m

2

A

B

C

D

D

D

E

(TOP)

Terminations

Designation

SM1

Gold Plated

SM2

Nickel, Silver Plated

SM3

Nickel, Solder Plated and Solder Dipped

Termination

Ageing, first year:

Shock:

Vibration, survival:

Operating Temperature:

Storage Temperature:

Max. Process Temperature:

±5ppm max.

1,000g peak, 0.3ms, ½ sine

10g rms 20-1,000Hz random

-10°~+70°C (commercial)

-40°~+85°C (industrial)

-55°~+125°C (military)

-55°C~+125°C

260°C for 20 seconds

Specifications are typical at 25°C unless otherwise indicated.

*

Closer frequency calibration available

**

Other turning point available

f-fo

fo

= k(T-To)

+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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