MF2

Surface Mount Crystals

Fund.

3rd O.T.

[ 6.0 * 3.5 * 1.0 mm ]

Min.

Max.

8MHz

125MHz

Features

Specifications

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The entire package can be grounded via the top metal lid and the two bottom pads.

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This tight tolerance and tight stability crystal is ideal for telecommunications.

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This crystal package will withstand solder reflow .

General Specifications

Item / Type

MF2

Frequency Range & Crystal Cut

8.000 ~ 50.000 MHz , AT-cut , Fundamental Mode ( see Table 1 )

30.000 ~ 125.000 MHz , AT-cut , 3rd overtone ( see Table 1 )

Load Capacitance

Series or Parallel ( 8 to 32 pF ) resonance

Drive Level

10μ W typical ( 100μ W max. )

Frequency Tolerance

± 5 ppm , ± 10 ppm , ± 20 ppm or ± 30 ppm at 25°C

Frequency Stability

See Table 2

Aging

△

F / F : ±3 ppm / year ( max. )

Storage Temperature Range

- 50°C to 105°C

Table 1

Table 2

ESR ( Equivalent Series Resistance )

Frequency stability vs Operating temperature range

Freq.(MHz)

Osc. Mode

E.S.R.

Freq.(MHz)

Osc. Mode

E.S.R.

Stability code Temp. (ºC) \ ppm

X

-10 to 60°C

± 5

± 10

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AT , 3rd

80 Ω

8.0 ~ 12.0

AT , Fund.

80 Ω

30.0~ 40.0

AT , 3rd

100 Ω

12.1 ~ 16.0

AT , Fund.

60 Ω

40.1~ 50.0

▲○

± 25

± 30

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± 15

± 20

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Y

-20 to 70°C

I

-40 to 85°C

AT , 3rd

50 Ω

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Outline Dimensions ( Unit : mm )

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16.1~ 50.0

AT , Fund.

40 Ω

50.1~ 125.0

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: available ; ▲ : contact Mercury

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