B39431-R850-H210 datasheet(3/4 Pages) EPCOS

No. de pieza	B39431-R850-H210

Descripción Electrónicos	SAW Components

PDF	4 Pages

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Fabricante Electrónico	EPCOS [EPCOS]

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3 / 4 page

Aug 21, 2002

SAW Components

R 850

433,94 MHz

Resonator

Data Sheet

Characteristics

Reference temperature:

TA = 25 ˚C

Terminating source impedance:

ZS = 50 Ω

Terminating load impedance:

ZL = 50 Ω

1) Center frequency is defined as maximum of the real part of the admittance

2) If used in two port configuration (pin 1-input, pin 3-output) C0 is reduced by approx. 0,3 pF.

3)Temperature dependence of fc: fc(TA) = fc(T0)(1 + TCf(TA – T0)2)

min.

typ.

max.

Center frequency 1)

433,89

433,94

433,99

MHz

Minimum insertion attenuation

min

—

1,2

1,5

Unloaded quality factor

8000

13800

—

Ageing of

—

–10/+50 ppm

Equivalent circuit elements

Motional capacitance

—

2,066

—

Motional inductance

—

65,11

—

µH

Motional resistance

—13

Ω

Parallel capacitance 2)

—

2,7

—

Temperature coefficient of frequency 3)

TCf

—

–0,032

—

ppm/K2

Turnover temperature

˚C

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