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参数资料
| 型号： | PAFC248C |
| 元件分类： | 声表面波滤波器 |
| 英文描述： | 1 FUNCTIONS, 248.45 MHz, SAW FILTER |
| 封装： | ROHS COMPLIANT, CERAMIC PACKAGE-7 |
| 文件页数： | 1/2页 |
| 文件大小： | 176K |
| 代理商： | PAFC248C |
RoHS Compliant
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
Series
Center Frequency
Type
(Unit : mm)
INPUT
OUTPUT
GROUND
N.C.
Tolerance: 0.1[mm]
INPUT
OUTPUT
GROUND
G
IN
G
1.3
1.8
0.
9
0.
37
0.
37
0.
9
0.
9
G
OUT
G
G: GROUND
1.3
Fig. E
Fig. A
Fig. C
Dimensions
Specifications
Test Circuit
Recommended Land Pattern
Fig. B
68nH
3.5pF
4.5pF
1.0pF
50
IN
OUT
Fig. D
150nH
120nH
1:1
5pF
50
IN
OUT
Parts No.
PAFC243B
PAFC248C
Insertion
Loss
Operating
Temperature
Storage
Temperature
Test
Circuit
Taping
Dimensions
Recommended
LandPattern
Dimen-
sions
Stop Band Attenuation
fn600kHz fn1.2MHz fnfa MHz()
Ripple
(fn110kHz)
243.95MHz 4.0dB max. 130kHz min. 30dB min.40dB min.60dB min. 1.5dB max.1.2s max.
10 to 60°C 20 to 80°C
Fig. A Fig. C Fig. E Fig. G
248.45MHz 4.5dB max. 130kHz min. 30dB min.35dB min.60dB min. 1.5dB max.1.2s max.
Fig. B Fig. D Fig. F Fig. G
Note PAFC248C : fa21.5MHz
PAFC243B : fa21.6MHz
Nominal Center
Frequency
(fn)
Pass Band
Width
(at 3dB)
Group Delay
Time
(fn110kHz)
(Unit : mm)
Fig. F
1.3
0.9
1.3
0.
9
0.
37
0.
37
0.
9
0.
9
0.
9
1.
8
0.9
G
IN
OUT
G
G: GROUND
Pb Free
0.8
1.0
1.
3
1.
27
1.
27
0.
7
3.
8
3.8
0.8
0.5
1.
3
1.
27
1.
27
0.
7
3.
8
3.8
Surface Acoustic Wave Filters
PAFC Series
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