TYPE #4DFA型 (2 Pole SMD 2极表面贴装型) / #4DFB型(3 Pole SMD 3极表面贴装型)
Frequency Range/
频率范围
: 700~2500MHz
Temperature Range/
温度范围
:- 40°C~+ 85°C
#4DFA
(Unit: mm)
*: Depends on Center Frequency.
*: 取决于中心频率。
#4DFB
(Unit: mm)
*: Depends on Center Frequency.
*: 取决于中心频率。
SELECTION GUIDE FOR STANDARD DEVICES/ 标准设备选择指南
The Part Numbers shown in the tables below are standard devices, which are
readily available. TOKO will design and manufacture modified and custom
devices with specific characteristics to meet your requirements.
If you do not find the devices for your application in this catalog, please
contact our sales or representative office.
RoHS compliant.
下表格中所示零件号码为标准设备，可随时提供。东光也设计和生产有特定性能的改装产
品和自定义设备以满足您的需求。
如果目录中没能满足您的需求，请与我们销售处或代表处联系。
符合RoHS指令。
TYPE #4DFA: SMD 2 Pole Designs / #4DFA
型
:
表面贴装
2
极设计
东光零件号码 中心频率 带宽 插入损失 BW中最大纹波 电压驻波比 最小选择度 应用
TOKO
Part
Number
Center
Frequency
(MHz)
Bandwidth
(fo MHz)
Insertion
Loss
(dB) Max.
Ripple
in BW
(dB) Max.
V.S.W.R.
in BW
Max.
Selectivity
(dB) Min. (MHz)
Application
#4DFA-836E-10 836.5 12.5 2.0 1.0 2.0 18 (fo 77.5) AMPS
#4DFA-881E-10 881.5 12.5 2.0 1.0 2.0 18 (fo 77.5) AMPS
#4DFA-902E-10 902.5 12.5 2.0 1.0 2.0 18 (fo 77.5) NMT/GSM
#4DFA-947E-10 947.5 12.5 2.0 1.0 2.0 18 (fo 77.5) NMT/GSM
#4DFA-866A-10 866.0 2.0 3.0 1.0 1.43 30 (fo − 105) CT2
#4DFA-886A-10 886.0 1.0 3.0 1.0 2.0 22 (fo 45) Cordless Phone
#4DFA-808C-11 808.0 8.0 2.0 1.0 2.0 22 (fo 64) Wireless Microphone
#4DFA-849C-10 849.0 8.0 2.0 1.0 2.0 22 (fo 64) Wireless Microphone
#4DFA-915E-10 915.0 13.0 2.2 1.0 2.0 18 (fo 77.5) Spread Spectrum
#4DFA-1227B-10 1227.0 5.0 2.0 0.8 2.0 7, 30 (fo 35, 140) GPS
#4DFA-1227B-11 1227.0 5.0 1.2: 0.7 Typ. 0.5 2.0 15, 20 (fo + 140, − 140) GPS
#4DFA-1227D-12 1227.0 10.0 1.2: 0.7 Typ. 0.7 2.0 16, 20 (fo + 140, − 140) GPS
#4DFA-1237L-10 1237.0 30.0 1.7 1.0 2.0 10, 15 (fo + 140, − 140) GPS+GLONASS
#4DFA-1248B-10 1248.0 5.0 2.0: 1.4 Typ. 0.8 2.0 7, 30 (fo 35, 140) GPS
#4DFA-1575B-10 1575.4 5.0 2.0: 1.4 Typ. 0.8 2.0 7, 30 (fo 35, 140) GPS
#4DFA-1575B-12 1575.4 5.0 1.2: 0.7 Typ. 0.5 2.0 17, 20 (fo + 140, − 140) GPS
#4DFA-1575B-14 1575.4 5.0 2.5: 1.8 Typ. 0.8 2.0 17 (fo 50) GPS
#4DFA-1591L-10 1591.0 30.0 1.5 0.7 2.0 10, 15 (fo + 140, − 140) GPS+GLONASS
#4DFA-2442P-10 2442.0 40.0 2.5 1.0 2.0 15 (fo 250) Spread Spectrum
Input Output impedance／输入输出抵抗 : 50
Dielectric Filters for Surface Mounting
表面贴装型介质滤波器
Typical Characteristics 典型特性
TYPE #4DFB: SMD 3 Pole Designs/ #4DFB
型
表面贴装
3
极设计
东光零件号码 中心频率 带宽 插入损失 BW中最大纹波 电压驻波比 最小选择度 应用
TOKO
Part
Number
Center
Frequency
(MHz)
Bandwidth
(fo MHz)
Insertion
Loss
(dB) Max.
Ripple
in BW
(dB) Max.
V.S.W.R.
in BW
Max.
Selectivity
(dB) Min. (MHz)
Application
#4DFB-591F-10 591.0 15.0 3.0 1.2 2.2 40 (fo 110) Wireless Microphone
#4DFB-621F-10 621.0 15.0 3.0 1.2 2.2 40 (fo 110) Wireless Microphone
#4DFB-704E-10 704.0 12.0 3.0 1.0 2.0 40,43 (fo − 100, + 100) Wireless Microphone
#4DFB-790H-10 790.0 20.0 2.7 1.1 2.5 35 (fo 100) Wireless Microphone
#4DFB-796F-10 796.0 14.0 3.0 1.0 2.0 40,43 (fo − 100, + 100) Wireless Microphone
#4DFB-836E-10 836.5 12.5 2.5 1.0 2.0 12 (fo 32.5) AMPS
#4DFB-881E-10 881.5 12.5 2.5 1.0 2.0 12 (fo 32.5) AMPS
#4DFB-886A-10 886.0 1.0 4.5 1.0 2.0 41 (fo 45) Cordless Phone
#4DFB-953A-10 953.5 1.5 6.0 1.5 2.0 30 (fo 30) RFID
#4DFB-915E-10 915.0 13.0 2.7 1.0 2.0 12 (fo 32.5) Spread Spectrum
#4DFB-1030C-10 1030.0 7.5 3.2 1.0 1.6 20, 50 (fo 35, 140) TCAS
#4DFB-1227D-10 1227.0 10.0 3.2 1.0 2.0 12, 40 (fo 35, 140) GPS
#4DFB-1575D-10 1575.0 10.0 3.2 1.0 2.0 12, 40 (fo 35, 140) GPS
#4DFB-1542G-10 1542.0 17.0 2.0 1.0 2.0 17 (fo 84.5) MCSS/INMARSAT
#4DFB-1643G-10 1643.5 17.0 1.6 0.5 1.5 18, 28 (fo − 67, + 108) MCSS/INMARSAT
#4DFB-1747N-10 1747.5 35.0 2.0 1.2 2.0 12, 38 (fo 100, 350) PCN
#4DFB-1842N-10 1842.5 35.0 2.0 1.2 2.0 24, 38 (fo 157, 350) PCN
#4DFB-1950L-10 1950.0 30.0 3.0 1.0 2.0 25, 25 (fo − 230, + 160) W-CDMA
#4DFB-2140L-10 2140.0 30.0 3.0 1.0 2.0 30, 22 (fo − 340, − 160) W-CDMA
#4DFB-2442P-10 2442.0 40.0 2.5 1.2 2.0 5, 32 (fo 80, 250) Spread Spectrum
#4DFB-920A-11 920.0 2.5 5.0 1.0 2.0 50, 18 (fo − 88, 20) Digital TV
#4DFB-860D-10 860.0 10.0 2.5 0.8 2.0 15, 35 (fo 35, 80) LMR
#4DFB-938A-13 938.0 3.0 2.0 1.0 2.0 18, 13 (fo − 36, + 36) LMR
Input Output impedance／输入输出抵抗: 50
Dielectric Filters for Surface Mounting
表面贴装型介质滤波器
