Dielectric Filters for Surface Mounting TYPE #4DFA (2 Pole SMD Type) / #4DFB (3 Pole SMD Type) Frequency Range: 700~2500MHz Temperature Range: - 40C~+ 85C #4DFA Typical Characteristics (Unit: mm) *: Depends on Center Frequency. *: #4DFB (Unit: mm) *: Depends on Center Frequency. *: 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 requirements. If you do not find the devices for your application in this catalog, please contact our sales or representative office. * RoHS compliant * * RoHS 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 Center Frequency (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 Bandwidth (fo MHz) 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 /Input Output impedance : 50 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 Typ. 1.2: 0.7 Typ. 2.0: 1.4 Typ. 2.0: 1.4 Typ. 1.2: 0.7 Typ. 2.5: 1.8 Typ. 1.2: 0.7 Typ. 2.5 BW 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 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 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) Application AMPS AMPS NMT/GSM NMT/GSM CT2 Cordless Phone Wireless Microphone Wireless Microphone Spread Spectrum GPS GPS GPS GPS GPS GPS GPS MCSS Spread Spectrum Dielectric Filters for Surface Mounting TYPE #4DFB: SMD 3 Pole Designs TOKO Part Number #4DFB-704E-10 #4DFB-790H-10 #4DFB-796F-10 #4DFB-836E-10 #4DFB-881E-10 #4DFB-886A-10 #4DFB-953A-10 #4DFB-915E-10 #4DFB-1030C-10 #4DFB-1227D-10 #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 Center Frequency (MHz) 704.0 790.0 796.0 836.5 881.5 886.0 953.5 915.0 1030.0 1227.0 1575.0 1542.0 1643.5 1747.5 1842.5 1950.0 2140.0 2442.0 920.0 860.0 938.0 Bandwidth (fo MHz) 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 /Input Output impedance : 50 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 BW 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 2.0 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) Application Wireless Microphone Wireless Microphone Wireless Microphone 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 Dielectric Filters for Surface Mounting PRECAUTIONS AND RECOMMENDED SOLDERING CONDITIONS FOR USING DIELECTRIC FILTERS SURFACE MOUNT TYPE 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 : 2155C for 30.5 seconds lead free process : 2455C for 30.5 seconds *Solder heat resistance No abnomalities under solder conditions of leaded process : 2305C for 5 seconds lead free process : 2555C 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 : 350C for 5s. Max. lead free process : 3905C for 5s. Max. 1. 95% 2305C30.5 2605C30.5 2305C5 2605C5 2. 3. 4. 3505C5 3905C5