Features
• Small and low profile
• Ceramic package type
• Flat pass band characteristics
• Low insertion loss
• Circuit simplification
Application
• PHS
How to Order
PAFC 243 B
qSeries
wCenter Frequency
eType
qwe
(Unit : mm) (Unit : mm)
(Unit : mm)
INPUT
OUTPUT
GROUND
N.C.
Tolerance: ±0.1[mm]
q
w
e
r
Tolerance: ±0.1[mm]
INPUT
OUTPUT
GROUND
q
w
e
G
IN
G
1.3 1.8
0.9
0.370.37
0.90.9
G
OUT
G
G:GROUND
1.3
Fig. E
Fig. A
Fig. C
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Dimensions
Specifications
Test Circuit
Recommended Land Pattern
0.8 1.0
1.3
e
w
e
e
w
e
e
q
e
r e
e
q
e
1.271.27
0.7
3.8
3.8
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Fig. B
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0.8
0.50.5
1.3
e
w
w
e
w
w
q
q
e
q
q
e
1.271.27
0.7
3.8
3.8
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68nH 68nH
3.5pF 4.5pF
1.0pF 1.0pF
50Ω50Ω
IN OUT
Fig. D
150nH
120nH
1:1
1:1 5pF
5pF
5pF
5pF
50Ω
50Ω
IN
IN
OUT
OUT
Parts No.
PAFC243B
PAFC248C
Insertion
Loss
Operating
Temperature Storage
Temperature Test
Circuit
Taping
Dimensions
Recommended
Land Pattern
Dimen-
sions
Stop Band Attenuation
fn±600kHz fn±1.2MHz
fn±fa MHz(∗)
Ripple
(fn±110kHz)
243.95MHz 4.0dB max ±130kHz min 30dB min 40dB min 60dB min 1.5dB max 1.2µs max
−10 to 60°C−20 to 80°CFig. A Fig. C Fig. E Fig. G
248.45MHz 4.5dB max ±130kHz min 30dB min 35dB min 60dB min 1.5dB max 1.2µs max
Fig. B Fig. D Fig. F Fig. G
∗ Note PAFC248C : fa=21.5MHz
PAFC243B : fa=21.6MHz
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Nominal Center
Frequency
(fn)
Pass Band
Width
(at 3dB)
Group Delay
Time
(fn±110kHz)
(Unit : mm)
Fig. F
1.3 0.9 0.9 1.3
0.9
0.370.37
0.90.9
0.91.8
0.9
G
IN
IN
OUT
OUT
G
G: GROUND
Surface Acoustic Wave Filters
(PAFC Series)
Characteristics
PAFC248C(Pass Band Characteristics) PAFC248C(Spurious Characteristics)
PAFC243B(Spurious Characteristics)PAFC243B(Pass Band Characteristics)
80
70
60
50
40
30
20
10
0
90 242.95 243.95 244.95
Frequency(MHz)
Attenuation(-dB)
Group delay time(1.0µsec/Div)
80
70
60
50
40
30
20
10
0
90 223.95 233.95 243.95 253.95 263.95
Frequency(MHz)
Attenuation(-dB)
Recommended Temperature Profile IR Reflow
0
50
100
150
200
250
Temp(°C) Peak Temp
235°C±5°C
150°C±10°C
Time
0 to 60sec 60 to 120sec
200°C
40 sec max
2 to 3sec
80
70
60
50
40
30
20
10
0
90247.450 248.450 249.450
Frequency(MHz) Frequency(MHz)
Attenuation(−dB)
Attenuation(−dB)
Group delay time(1.0µsec/Div)
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
0.0
90.0
100.0
223.450 233.450 243.450 253.450 263.450 273.450
(Unit : mm)
Code A B C D E F G H J K L M
Dimen 4.0 2.0 12.0 5.5 1.75 1.55 8.0 1.55 4.3 4.3 0.3 2.05
-sion
A
J
BL
φH
K
C
DE
G M
φF
Fig. G
Taping Dimensions
Surface Acoustic Wave Filters
(PAFC Series)
Features
• Small and low profile
• Flat pass band characteristics
• Low insertion loss
• Excellent temperature stability
Application
• Remote Keyless Entry
How to Order
PAFC 433.92 AR 00
qSeries
wCenter Frequency
eType
rOption
qwer
(Unit : mm)
Dimensions
(Unit : mm)
Specifications
Test Circuit
Recommended Land Pattern
INPUT
OUTPUT
GROUND
q
w
e
INPUT
OUTPUT
GROUND
q
w
e
47nH 33nH
7.5pF 2.0pF
50Ω50Ω
IN
OUT
Parts No.
PAFC433.92AR00
Insertion
Loss
Pass Band
Width
(at 3dB)
Operating
Temperature Storage
Temperature
Stop Band Attenuation
Nominal
Center
Frequency (fn)
10MHz 414MHz 428MHz 434.92MHz 442MHz 550MHz
433.920 4.0dB max. Fn±200kHz ------
−40 to 85°C−40 to 85°C
MHz min. 414MHz 428MHz 432.92MHz 442MHz 550MHz 1000MHz
42dB min. 35dB min. 15dB min. 10dB min. 35dB min. 40dB min.
1
3
3
3
3
3
3
2
3
3
2
1
3
3
3
3
5.0
1.17
1.6
1.27
5.0 0.64
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1.27
1
0.840.84 0.84
0.430.43
3
3
2.681.67 1.25
3
3
2
(Unit : mm)
1.670.84
3
0.71
3
Taping Dimensions
Code A B C D G H J K L M
Dimensions
4.0 2.0 12.0 5.5 8.0 1.55 5.3 5.3 0.3 2.10
A
J
BL
φH
K
C
DE
G M
Surface Acoustic Wave Filters
(PAFC Series)
Recommended Temperature IR Reflow
Characteristics
• Pass Band Characteristics • Spurious Characteristics
0
50
100
150
200
250
Temp. (˚C)
Time
180˚C min.
40sec max.
200˚C min.
15sec max.
Peak Temp.
230±5˚C
0
−5
−10
−15
−20
−25
−30
−35
−40
432.920 433.920 434.920
Frequency(MHz) Frequency(MHz)
Attenuation(dB)
Attenuation(dB)
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
408.920 433.920 458.920
Surface Acoustic Wave Filters
(PAFC Series)
