441.20 MHz One-Port SAW Resonator

Phone: +86 10 6301 4184

Fax: +86 10 6301 9167

Email: sales@vanlong.com

Web: http://www.vanlong.com

© 2004 by Vanlong Technology Co., Ltd.

SR441B

•

Ideal for 441.20 MHz Transmitters

•

Very Low Insertion Loss

•

Quartz Stability

•

Rugged, Hermetic, Low Profile F-11 Package

Absolute Maximum Rating (Ta=25

°C)

Parameter

Rating

Unit

CW RF Power Dissipation

P

0

dBm

DC Voltage

±30

V

Operating Temperature Range

-10 ~ +60

°C

Storage Temperature Range

-40 ~ +85

°C

Electronic Characteristics

Parameter

Sym

Minimum

Typical

Maximum

Unit

Frequency (25

°C)

Nominal Frequency

Tolerance from 441.20 MHz

C

NS

-

441.20

-

NS

± 75

MHz

KHz

Insertion Loss

IL

-

2.8

3.3

dB

Quality Factor

Unloaded Q-Value

50

Ω Loaded Q-Value

-

-

12,350

3,400

-

-

-

-

Temperature Stability

Turnover Temperature

Turnover Frequency

Frequency Temperature Coefficient

FTC

25

-

-

-

fc

-0.032

55

-

-

°C

KHz

ppm/

Frequency Aging

Absolute Value during the First Year

|f

-

-

10

ppm/yr

DC Insulation Resistance Between any Two Pins

-

1.0

-

-

M

Ω

RF Equivalent RLC Model

Motional Resistance

Motional Inductance

Motional Capacitance

Pin 1 to Pin 2 Static Capacitance

-

-

-

0.85

38.0

169.3413

0.7692

1.15

46.0

-

-

1.45

Ω

µH

fF

pF

NS = Not Specified

Notes:

1.

the resonator in the 50

Ω test system.

2.

3.

+65

°C or less. Aging may exceed the specification for prolonged

temperatures above +65°C. Typically, aging is greatest the first year

after manufacture, decreasing in subsequent years.

4.

5.

This equivalent RLC model approximates resonator performance

near the resonant frequency and is provided for reference only. The

between Pin1 and Pin2. The measurement includes case parasitic

capacitance.

6.

Derived mathematically from one or more of the following directly

7.

The specifications of this device are based on the test circuit shown

above and subject to change or obsolescence without notice.

8.

Typically, equipment utilizing this device requires emissions testing

and government approval, which is the responsibility of the

equipment manufacturer.

9.

Our liability is only assumed for the Surface Acoustic Wave (SAW)

component(s) per se, not for applications, processes and circuits

implemented within components or assemblies.

10.

For questions on technology, prices and delivery please contact our

sales offices or e-mail to sales@vanlong.com.

SR441B