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

CX3VSM 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

SPECIFICATION

FEATURES

Frequency Range 30kHz to 250kHz

High shock resistance

Low ageing

Designed for low power applications

Full MIL testing available

PACKAGING OPTIONS

CX4VSM crystals are available either tray packed (<250pcs) or tape

and reel (>250 pieces).

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

CX4VSM CRYSTAL

HOW TO ORDER CX4VSM CRYSTALS

CX4V - S

-

C

-

SM1

-

32.768K,

100

/

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

30kHz to 250kHz

SM1

1.14

1.27

SM2

1.17

1.30

SM3

1.22

1.35

SM4

1.17

1.30

SM5

1.22

1.35

Glass

Lid

Ceramic

Lid

Dim. H

Ultra-Miniature SMD Crystal

Parameters

Fundamental

Overtone

Frequency (Hz):

32.768

100

200

Motional Resistance R1 (kΩ):

50

18

2.4

Motional Capacitance C1 (fF):

2.3

1.07

2.2

QualityFactor Q (k):

40

85

140

9

8

5

25

10

29

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

Specifications may change without notice.

1.

Other values available

2.

Tighter tolerances available

Drive Level:

0.5µW max.

Temperature Coefficient (k):

Ageing, first year:

5ppm max.

Note: Frequency f at temperature T is related to frequency Fo at

turning point temperature To by:

f-fo

fo

Shock, survival:

5000g, 0.3ms, ½ sine

Vibration, survival:

20g rms, 20~2000Hz random

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

Standard Calibration Tolerance for 32.768kHz (2)

Glass Lid:

±30ppm

(0.003%)

±100ppm

(0.01%)

±1000ppm

(0.1%)

Ceramic Lid:

±100ppm

(0.01%)

±1000ppm

(0.1%)

±10000ppm

(1.0%)