XT49S

www.vishay.com

Vishay Dale

Revision: 22-Jul-15

1

Document Number: 35014

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

Low Profile Holder Type Crystal Units

This part is a miniature AT cut strip crystal unit with a low

profile package. It is with resistance weld.

FEATURES

•Low cost

• Industry standard

• Wide frequency range

• Excellent aging

• Material categorization: for definitions of compliance





STANDARD ELECTRICAL SPECIFICATIONS

PARAMETER

SYMBOL

CONDITION

UNIT

MIN.

TYP.

MAX.

Frequency range

MHz

3.579545

-

66.000

Frequency tolerance

F/F

O

at 25 °C

ppm

-30

-

+30

Temperature stability

ref. to 25 °C

ppm

-50

-

+50

Operating temperature range

°C

-10

-

+70

Storage temperature range

°C

-55

-

+125

Shunt capacitance

pF

-

-

7

Load capacitance

customer specified

pF

10

-

series

Insulation resistance

M



500

-

-

Drive level

μW

-

100

500

Aging (first year)

Fa

at 25 °C, per year

ppm

-5

-

+5

EQUIVALENT SERIES RESISTANCE (ESR) AND MODE OF VIBRATION (MODE)

FREQUENCY RANGE (MHz)

MAX. ESR (

)

MODE

FREQUENCY RANGE (MHz)

MAX. ESR (

)MODE

3.579 to 3.999

200

fundamental/AT

10.000 to 13.999

80

fundamental/AT

4.000 to 4.999

150

fundamental/AT

14.000 to 39.999

50

fundamental/AT

5.000 to 5.999

120

fundamental/AT

40.000 to 66.000

80

6.000 to 9.999

100

fundamental/AT

DIMENSIONS in inches [millimeters]

0.435 [11.05] max.

0.183 [4.65]

max.

0.403 [10.24] max.

0.192 ± 0.008

[4.88 ± 0.2]

0.500 [12.7]

min.

0.150 [3.81] max.

Ø 0.017 ± 0.002

[0.43 ± 0.05]

0.138 [3.5]

max.