Sichuan Institute of Piezoelectric and Acoustooptic Technology

z Ideal for European 418 MHz transmitters

z Low loss,High Q factor

z Quartz stability

z To—39 case

The SP418R is a true one-port ,surface-acoustic-wave(SAW) resonator in a low profile TO-39 case .It

provides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency transmitters

operating at 418MHz. The SP418R is designed specifically for remote-control and wireless security

transmitters operating in Europe under ETSII-ETS 300 200 and in Germany under FTZ 17 TR 2100

Absolute Maximum Rating

Rating

Value

CW RF power Dissipation

+13dBm

DC Voltage between any 2 pins

f30VDC

Case Temperature

-40 to +85



Electrical Characteristic

Characteristic

Sym

Unit

Minimum

Typical

Maximum

Center Frequency

MHz

417.925

418

418.075

Insertion Loss

IL

dB

1.1

2.0

Unloaded Q

11,000

Quality Factor

50

¡loaded Q

2,150

Turnover Temperature



28

43

58

Turnover Frequency

KHz

Temperature

Stability

Freq.Temp.Coefficient

FTC

ppm/

0.032

Frequency Aging

ppm/yr

<

f10

DC Insulation Resistance between any 2 pins

•¡

1.0

Motional resistance

¡

15

19

Motional Inductance

­H

67.0144

Motional Capacitance

fF

2.01212

Shunt Static Cap

pF

1.7

2.1

2.3

RF

Equivalent

RLC

Model

Transducer Static Cap.

pF

1.8

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SP418R

418MHz SAW Resonator