19

© 1998 FOX ELECTRONICS

Actual Size

The FK is an AT-cut tight tolerance SMD crystal designed to

withstand extreme heat from IR reflow operations. This new

compact package is formed before the crystal is inserted which

allows for tighter tolerances and stabilities.

FEATURES

• Tight Tolerance and Stability

• Cost Effective

• Excellent Hermeticity

• Tape and Reel (1,000 pcs. STD)

Operating Temperature

0ºC ~ +50°C

-10ºC ~ +50°C

-10ºC ~ +60°C

-10ºC ~ +70°C

-20ºC ~ +70°C

-30ºC ~ +80°C

-40ºC ~ +85°C

• FK STANDARD SPECIFICATIONS

PARAMETERS

Frequency Range

Frequency Tolerance

Frequency Stability, ref @ 25ºC

Temperature Range

Operating

Storage

Shunt Capacitance

(Co)

Load Capacitance

Drive Level

Aging

UNITS

MHz

PPM

ºC

pF

pF

mW

PPM

MAX

90.000

+20 *

+90

7.0

Series

0.1

+5.0

MIN

3.579545

-20 *

-40

10.0

-5.0

CONDITIONS

Ta = 25ºC

See below

See below

Customer Specified

3.579545 ~ 90.000 MHz

Ta = 25ºC; per year

Frequency Range (MHz)

3.579

∼ 4.000

4.000+

∼ 5.000

5.000+

∼ 6.000

6.000+

∼ 7.000

7.000+

∼ 9.000

Operating Mode

Fundamental

Fundamental

Fundamental

Fundamental

Fundamental

Oper. Mode

Fundamental

Fundamental

Fundamental

3rd OT

Max ESR

Ω

60

40

30

100

Frequency Range (MHz)

9.000+

∼ 13.000

13.000+

∼ 20.000

20.000+

∼ 30.000

30.000

∼ 90.000

* Other tolerances available. Consult Fox Customer Service for specific requirements, or use crystal order form on page 6.

All specifications subject to change without notice. Rev. 6/2/98

TIGHT TOLERANCE THERMOPLASTIC ENCASED SMD CRYSTAL

FK

Inch dimensions shall govern.

All dimensions are in inches & parenthetically in millimeters.

See page 26 for tape and reel specifications.

±15PPM

*

*

*

*

*

*

±20PPM

*

*

*

*

*

*

*

±30PPM

*

*

*

*

*

*

*

±7.5PPM

*

*

*

*

±10PPM

*

*

*

*

*

±50PPM

*

*

*

*

*

*

*

±100PPM

*

*

*

*

*

*

*

Max ESR

Ω

200

150

120

100

80

DISCONTINUED