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4DFA-1248B-10

Description
Dielectric Filters for Surface Mounting
File Size142KB,3 Pages
ManufacturerTOKO, INC.
Websitehttps://www.murata.com/
Download Datasheet View All

4DFA-1248B-10 Overview

Dielectric Filters for Surface Mounting

Dielectric Filters for Surface Mounting
実装
用 小型誘電½フィルタ
づ け
TYPE
#4DFA
#4DFB
TYPE #4DFA (2 Pole SMD Type) / #4DFB (3 Pole Type)
Frequency Range:
700~2500MHz
Temperature Range:
40°C~+ 85°C
#4DFA
12.5
9.6
GND
1
7
*
12.5 Max.
GND
5
Typical Characteristics
代表特性例
#4DFA-1575B-10
0
5
10
0
5
10
20
25
30
35
40
45
50
20
25
Attenuation
Return loss
30
35
40
45
50
1 GND
7
1.5
OUT
IN
(Unit: mm)
*
:: Depends on Center Frequency.
*
長さは周波数に依存します。
17.5
14.5
1
7
*
12.5 Max.
Center Frequency: 1,575.4MHz
Span: 300MHz
#4DFB
5
0
5
10
#4DFB-915E-10
0
5
10
GND
20
25
30
35
40
45
50
20
25
11.5
1.5
OUT
1
GND
IN
Attenuation
30
35
(Unit: mm)
*
:: Depends on Center Frequency.
*
長さは周波数に依存します。
Return loss
40
45
50
Center Frequency: 915MHz
Span: 200MHz
SELECTION GUIDE FOR STANDARD DEVICES
The Part Number shown in the table below are standard devices, which are
readily available. TOKO will design and manufacture modified and custom
devices with specific characteristics to meet your requiements.
If you do not find the devices for your application in this catalog, please
contact our sales or representative office.
RoHS compliant
下記の表に示す½品番号は標準品です½TOKOは½お客様のご要望に合わせ設計½½½
致しますので½お客様の用途に適合する仕様が見½たらない場合は½½社営業所または
代理店にご連絡下さい。
RoHS指令対応
TYPE #4DFA: SMD 2 Pole Designs
東光品番
中心周波数
帯域幅
挿入損失
帯域内リップル
V.S.W.R.
選択度
応用例
TOKO
Part
Number
#4DFA-836E-10
#4DFA-881E-10
#4DFA-902E-10
#4DFA-947E-10
#4DFA-866A-10
#4DFA-886A-10
#4DFA-808C-11
#4DFA-849C-10
#4DFA-915E-10
#4DFA-1227B-10
#4DFA-1227B-11
#4DFA-1227D-12
#4DFA-1248B-10
#4DFA-1575B-10
#4DFA-1575B-12
#4DFA-1575B-14
#4DFA-1550L-10
#4DFA-2442P-10
#4DFA-2642E-11
Center
Frequency Bandwidth
(fo
±
MHz)
(MHz)
836.5
881.5
902.5
947.5
866.0
886.0
808.0
849.0
915.0
1227.0
1227.0
1227.0
1248.0
1575.4
1575.4
1575.4
1550.0
2442.0
2642.5
±
12.5
±
12.5
±
12.5
±
12.5
±
2.0
±
1.0
±
8.0
±
8.0
±
13.0
±
5.0
±
5.0
±
10.0
±
5.0
±
5.0
±
5.0
±
5.0
±
30.0
±
40.0
±
12.5
Insertion
Loss
(dB) Max.
2.0
2.0
2.0
2.0
3.0
3.0
2.0
2.0
2.2
2.0
1.2: 0.7
1.2: 0.7
2.0: 1.4
2.0: 1.4
1.2: 0.7
2.5: 1.8
1.2: 0.7
2.5
2.0: 1.4
Typ.
Typ.
Typ.
Typ.
Typ.
Typ.
Typ.
Typ.
Ripple
in BW
(dB) Max.
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
0.8
0.5
0.7
0.8
0.8
0.5
0.8
0.7
1.0
0.8
V.S.W.R.
in BW
Max.
2.0
2.0
2.0
2.0
1.43
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
Selectivity
(dB) Min. (MHz)
18 (fo
±
77.5)
18 (fo
±
77.5)
18 (fo
±
77.5)
18 (fo
±
77.5)
30 (fo
105)
22 (fo
±
45)
22 (fo
±
64)
22 (fo
±
64)
18 (fo
±
77.5)
7, 30 (fo
±
35,
±
140)
15, 20 (fo
+
140,
140)
16, 20 (fo
+
140,
140)
7, 30 (fo
±
35,
±
140)
7, 30 (fo
±
35,
±
140)
17, 20 (fo
+
140,
140)
17 (fo
±
50)
12,16 (fo
+
150,
150)
15 (fo
±
250)
36,38 (fo
+
500,
500)
Application
AMPS
AMPS
NMT/GSM
NMT/GSM
CT2
Cordless Phone
Wireless Microphon
Wireless Microphon
Spread Spectrum
GPS
GPS
GPS
GPS
GPS
GPS
GPS
MCSS
Spread Spectrum
Mobile Broadcast
入出力インピーダンス/Input Output impedance : 50Ω
Return Loss (dB)
Attenuation (dB)
15
15
Return Loss (dB)
Attenuation (dB)
15
15
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