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Dielectric Filters for Surface Mounting
TYPE
#4DFA #4DFB
TYPE #4DFA (2 Pole SMD Type) / #4DFB (3 Pole Type)
Frequency Range: 700~2500MHz Temperature Range: - 40C~+ 85C
#4DFA
12.5 9.6 GND 1 7 *12.5 Max. GND 5
Typical Characteristics
#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. *
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. *
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
*
*
TYPE #4DFA: SMD 2 Pole Designs
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) 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 Application
Return Loss (dB)
Attenuation (dB)
15
15
Return Loss (dB)
Attenuation (dB)
15
15
Dielectric Filters for Surface Mounting
TYPE
#4DFA #4DFB
TYPE #4DFB: SMD 3 Pole Designs
TOKO Part Number #4DFB-704E-10 #4DFB-790H-10 #4DFB-796E-10 #4DFB-836E-10 #4DFB-881E-10 Center Frequency Bandwidth (fo MHz) (MHz) 704.0 790.0 796.0 836.5 881.5 12.0 20.0 14.0 12.5 12.5 1.0 1.5 13.0 7.5 10.0 10.0 17.0 17.0 35.0 35.0 30.0 30.0 40.0 2.5 10.0 3.0 Insertion Loss (dB) Max. 3.0 2.7 3.0 2.5 2.5 4.5 6.0 2.7 3.2 3.2 3.2 2.0 1.6 2.0 2.0 3.0 3.0 2.5 5.0 2.5 2.0 Ripple in BW (dB) Max. 1.0 1.1 1.0 1.0 1.0 1.0 1.5 1.0 1.0 1.0 1.0 1.0 0.5 1.2 1.2 1.0 1.0 1.2 1.0 0.8 1.0 V.S.W.R. in BW Max. 2.0 2.5 2.0 2.0 2.0 2.0 2.0 2.0 1.6 2.0 2.0 2.0 1.5 2.0 2.0 1.0 2.0 2.0 2.0 2.0 2.0 Selectivity (dB) Min. (MHz) 40,43 (fo - 100, + 100) 35 (fo 100) 40,43 (fo - 100, + 100) 12 (fo 32.5) 12 (fo 32.5) 41 (fo 45) 30 (fo 30) 12 (fo 32.5) 20, 50 (fo 35, 140) 12, 40 (fo 35, 140) 12, 40 (fo 35, 140) 17 (fo 84.5) 18, 28 (fo - 67, + 108) 12, 38 (fo 100, 350) 24, 38 (fo 157, 350) 25, 25 (fo - 230, + 160) 30, 22 (fo - 340, - 160) 5, 32 (fo 80, 250) 50, 18 (fo - 88, 20) 15, 35 (fo 35, 80) 18, 13 (fo - 36, + 36) Wireless Microphon Wireless Microphon Wireless Microphon AMPS AMPS Cordless Phone RFID Spread Spectrum TCAS GPS GPS MCSS/INMARSAT MCSS/INMARSAT PCN PCN W-CDMA W-CDMA Spread Spectrum Digital TV LMR LMR Application
#4DFB-886A-10 886.0 #4DFB-953A-10 953.5 #4DFB-915E-10 915.0 #4DFB-1030C-10 1030.0 #4DFB-1227D-10 1227.0 #4DFB-1575D-10 #4DFB-1542G-10 #4DFB-1643G-10 #4DFB-1747N-10 #4DFB-1842N-10 #4DFB-1950L-10 #4DFB-2140L-10 #4DFB-2442P-10 #4DFB-920A-11 #4DFB-860D-10 #4DFB-938A-13 1575.0 1542.0 1643.5 1747.5 1842.5 1950.0 2140.0 2442.0 920.0 860.0 938.0
Temperature profile (land seface temperature) ( )
for leaded process
230 210 190 180 150 260 240 220 180 150
for lead free process
*1 Pre-heat conditions *1 150 160 60s. Max. Reflow conditions *2 160 Min. 45s. Max. *3 200 Min. 30s. Max. *4 2305 5s. Max.
*4 *3 *2 *1 150 160 *2 160 *3 200 *4 2305 60 45 30 5
*1 Pre-heat conditions *1 150 180 120s. Max. Reflow conditions *2 180 Min. 150s. Max. *3 230 Min. 40s. Max. *4 2555 5s. Max.
*4 *3 *2 *1 150 180 *2 180 *3 230 *4 2555 120 150 40 5
1. Reflow solder conditions *Solderability When flux-mounted terminals are immersed in solder at following conditions, at least 95% of the surface should be covered by solder. Conditins leaded process : 2305C for 30.5 seconds lead free process : 2605C for 30.5 seconds *Solder heat resistance No abnomalities under solder conditions of leaded process : 2305C for 5 seconds lead free process : 2605C for 5 seconds 2. Rinsing After Soldering, you should rinsing away the excess flux. Any commercially available rinsing agent may be used. 3. Other Precautions Perform soldering at as low a temperature as possible and for as short a time as possible. Make sure that the silver electrode of resonators is not covered by solder. Avoid applying external forces to terminals such as by bending or cutting them. 4. Iron Soldering Perform iron soldering with iron at following conditions. Conditins leaded process : 3505C for 5s. Max. lead free process : 3905C for 5s. Max.

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