Surface Acoustic Wave Resonator
PAFA Series
Features
• Small size(3.0x3.0x1.5mm max)
• Ceramic package type
• Flat pass band characteristics
• Low insertion loss
• Circuit simplification
How to Order
PAFA 243 A R 01
q
w er t
qSeries
wCenter
Frequency
eMarking
code
rPackaging
tFrequency
tolerance or Custom spec
Standard Frequencies
• PHS
Pb Free
RoHS Conforming
(Unit : mm)
0.6±0.2
Dimensions
(Unit : mm)
1.9
Fig.A
0.8
③
③
3.0±0.2
0.5
Fig.E
3
3
0.5±0.2
②
①
0.6
1
2
0.85±0.2
1.5max.
3.0±0.2
① INPUT
② OUTPUT
③ GROUND
0.5
0.8
③
③
3
3
1.25
1.3
1.25
① INPUT
② OUTPUT
③ GROUND
Specifications
Parts No.
Nominal Center
Group Delay
Pass Band Stop Band Attenuation
Ripple
Operating
Storage Dimen- Test Recommended Taping
Frequency
Insertion
Time
Width
Loss
(fn±110kHz) (fn±110kHz) Temperature Temperature sions Circuit Land Pattern Dimensions
(fn)
(at 3dB)
fn±600kHz fn±1.2MHz fn±fa MHz(∗)
＜
4.5dB
−
PAFA243AR01
243.95MHz
±130kHz
min 30dB min 40dB min 60dB min 1.5dB max 1.2µs max
−10
to 60°C
−20
to 80°C Fig. A Fig. C Fig. E Fig. F
Test Circuit
Fig.C
Recommended Temperature IR Reflow Packaging
Temp(℃)
250
Peak Temp
230±5℃
200℃min
15sec max
1.75±0.1
4.0±0.1
2.0±0.05
1.55±0.05
3.3±0.1
(Unit : mm)
Fig.F
(3)
(3)
200
Cout
5.0pF
Input
(1)
(2)
Output
150
(3)
150±10℃
12.0±0.2
0.3±0.05
100
RF
Volt
meter
180℃min
40sec max
S.S.G
50
0 to 60
60 to 120sec
1.55±0.05
8.0±0.1
0.3max.
0.3
max.
0
Time
Characteristics
0
10
Group delay time(1.0µsec/Div)
20
30
Attenuation(dB)
40
50
60
70
80
90
100
242.95
243.95
Frequency(MHz)
244.95
100
0
10
20
30
Attenuation(dB)
40
50
60
70
80
90
218.95
228.95
238.95
248.95
258.95
268.95
Frequency(MHz)
Pass Band Characteristics
Spurious Characteristics
0.3 3.3±0.1
max.
1.85±0.1
Lin
68nH
(3)
Lout
68nH
5.5±0.05
50Ω
50Ω
0.3max.
Cin
4.5pF
SAW
Filter
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