EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE

Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001

info@euroquartz.co.uk

www.euroquartz.co.uk

DESCRIPTION

CX2VSM crystals are leadless devices designed for surface mounting

on PCBs or hybrid substrates. The crystals are intended for use in

Pierce (single inverter) oscillator circuits.

OUTLINE & DIMENSIONS

Specifications stated are typical at 25°C unless otherwise indicated.

Specifications may change without notice.

Frequency Range:

16.0kHz to 600.0kHz

Functional Mode:

Tuning Fork (Flexure)

Standard Calibration Tolerance*:

see table

Figure 1

Max = 16~24.9kHz, 2x typical

25~600kHz, 2.5x typical

Figure 2

Quality Factor (Q):

Figure 3

Min. is 0.25x typical

2.0pF max.

Drive Level

16~24.9kHz:

0.5µW max.

25~600.0kHz:

1.0µW max.

Figure 4

Temperature Coefficient (k):

Ageing, first year:

5ppm max.

Shock, survival***:

1,500g, 0.3ms, ½ sine

Vibration, survival***:

10g rms, 20~2000Hz

Operating Temperature Range

Commercial:

-10° to +70°C

Industrial:

-40° to +85°C

Military:

-55 to +125°C

Storage Temperature Range:

-55° to +125°C

Maximum Process Temperature:

+260°C for 20 seconds

SPECIFICATION

±30ppm

±50ppm

±100ppm

±200ppm

(0.003%)

(0.005%)

(0.01%)

(0.02%)

±100ppm

±100ppm

±200ppm

±500ppm

(0.01%)

(0.01%)

(0.02%)

(0.05%)

±1000ppm

±1000ppm

±2000ppm

±5000ppm

(0.1%)

(0.1%)

(0.2%)

(0.5%)

16~74.9

75~169.9

170~249

STANDARD CALIBRATION TOLERANCE

FEATURES

Frequency Range 16kHz to 600kHz

High shock resistance

Low ageing

Designed for low power applications

Full MIL testing available

16~24.9

10pF

25~54.9

9pF

55~100.0

8pF

Frequency

Range (kHz)

LOAD CAPACITANCE (CL)*

PACKAGING OPTIONS

CX2VSM crystals are available either tray packed (<250pcs) or tape

and reel (>250 pieces).

16mm tape, 178mm or 330mm reels (EIA 418).

CX2VSM CRYSTAL

*

Tighter frequency calibration is available.

**

Other turning point is available

*** Higher shock and vibration survival is available

HOW TO ORDER CX2VSM CRYSTALS

CX2V - S

-

C

-

SM1

-

32.768K

30

/

I

'S' if special,

custom design.

Otherwise leave

blank

Blank = glass lid

C = ceramic lid

Terminations

SM1 = Gold plated *

SM2 = Solder plated

SM3 = Solder dipped

SM4 = Solder plated *

SM5 = Solder dipped *

* = Lead free

Frequency

K = kHz

Calibration

Tolerance

@25°C

(in ppm)

Temp. Range

C = -10° ~ +70°C

I = -40° ~ +85°C

M = -55° ~ +125°C

S = Customer specified

Miniature SMD Crystal for Pierce Oscillators

16kHz to 600kHz

250~600

Frequency Range (kHz)

100.0~179.9

5pF

180~600

4pF

Load

Capacitance

Frequency

Range (kHz)

Load

Capacitance

* The load capacitance we use to calibrate CX2VSM.

(Other CL is available.)

A

6.60

6.99

B

2.39

2.74

C

see below

D

0.89

1.14

E

1.50

1.75

F

1.27

1.52

G

2.67

2.92

H

3.94

4.19

I

5.33

5.59

Typ.

Max.

Dim.

SM1

1.65

1.91

SM2

1.70

1.96

SM3

1.78

2.03

SM4

1.70

1.96

SM5

1.78

2.03

Glass

Lid

Ceramic

Lid

Dim. C